POINT Software Programming/PPROG1.ISO/misc/inter41/interrup.j

Text File | 1994-06-05 | 358KB | 9,420 lines

Interrupt List, part 10 of 11
This compilation is Copyright (c) 1989,1990,1991,1992,1993,1994 Ralf Brown
--------*-61---------------------------------
INT 61 - reserved for user interrupt
--------b-61---------------------------------
INT 61 - Atari Portfolio - EXTENDED BIOS
Desc:    provides subfunctions such as turning off the machine, accessing
      internal variables, and mapping memory cards
SeeAlso: INT 60"Atari"
--------b-61---------------------------------
INT 61 - HP 95LX System Manager - LOAD DS
SeeAlso: INT 0F"HP 95LX",INT 60"HP 95LX"
--------r-61---------------------------------
INT 61 - JPI TopSPEED Modula-2 v1 - PROCEDURE EXIT TRAP
SeeAlso: INT 60"JPI"
--------d-61---------------------------------
INT 61 - Adaptec and OMTI controllers - DRIVE 0 DATA
Desc:    this vector stores the second four bytes of the parameter table for
      hard disk 0
SeeAlso: INT 60"Adaptec",INT 62"Adaptec",INT 63"Adaptec"
--------I-61---------------------------------
INT 61 - Sangoma CCIP (CCPOP 3270 resident module) INTERFACE
    BX:DX -> control block
SeeAlso: INT 67"Sangoma"
--------v-61---------------------------------
INT 61 - VIRUS - "SEMTEX"/"Screen Trasher" - INT 21h SUBSTITUTE
Note:    the virus copies the original INT 21h vector into INT 61h
SeeAlso: INT 21h,INT 60"VIRUS",INT 6B"VIRUS"
--------N-61---------------------------------
INT 61 - TCPOpen kernel - API
    ES:BX -> request packet (see #1742)
Program: TCPOpen is a TCP/IP protocol stack by Lanera
Range:    INT 60 to INT 7F, selected by configuration file
Note:    there does not appear to be an installation check, though function
      FFFFh can be used to verify that the software is indeed functioning

Format of TCPOpen request packet:
Offset    Size    Description    (Table 1742)
 00h  8 BYTEs    ???
 08h    WORD    function number (0000h-001Ah or FFF9h-FFFFh)
 0Ah    WORD    ???
 0Ch  2 BYTEs    ???
 0Eh    WORD    (return) return code
 10h  2 BYTEs    ???
 12h    WORD    ???
 14h    WORD    (return) 0001h if requested function complete
 16h    WORD    (return) ???
 18h  6 BYTEs    ???
 1Eh    DWORD    -> ???
 22h    WORD    ??? or 0000h
 24h    WORD    (return) ???

(Table 1743)
Call TCPOpen Function FFFFh: installation verification
Return: offset 10h = BEEFh
    offset 14h = 0001h
    offset 24h = ???
Index:    installation check;TCPOpen kernel
--------N-61---------------------------------
INT 61 - FTP Software PC/TCP - TCP/IP TSR System Call interface
    AH = system call number (see also entries below)
        01h "pkt_alloc" (v2.05; this is "net_config" in v2.1+)
        02h "pkt_free" (v2.05; this is "get_kernel_info" in v2.1+)
Return: CF clear if successful
    CF set on error
        AL = basic error (see #1744)
        AH = suberror number (see #1745,#1746)
Range:    INT 20h to INT E0h, selected by configuration
Notes:    the installation check consists of testing for the signature "TCPTSR"
      three bytes beyond the start of the interrupt handler
BUG:    the SLIP kernel for v2.05 bounds-checks the wrong register, so values
      greater than 54h in AH may crash the system.    Other kernels may have
      this bug as well.
SeeAlso: INT 61/AH=00h"PC/TCP",INT 61/AH=2Ah,INT 61/AH=54h
Index:    installation check;PC/TCP

(Table 1744)
Values for PC/TCP error code:
 00h "NET_NOERR" successful
 01h "NET_ERR_INUSE" protocol or socket already in use
 02h "NET_DOS_ERR" MS-DOS error (returned as suberror code in AH)
 03h "NET_ERR_NOMEM" out of memory
 04h "NET_ERR_NOTNETCONN" not a network descriptor
 05h "NET_ERR_ILLEGALOP" invalid operation on given kind of network descriptor
 06h "NET_ERR_BADPKT" illegal or corrupted packet
 07h "NET_ERR_NOHOST" no host bound to specified connection
 08h "NET_ERR_CANTOPEN" unable to open file
 09h "NET_ERR_NET_UNREACHABLE" network is unreachable
 0Ah "NET_ERR_HOST_UNREACHABLE" host is unreachable (see subcodes below)
 0Bh "NET_ERR_PROT_UNREACHABLE" protocol is unreachable
 0Ch "NET_ERR_PORT_UNREACHABLE" port is unreachable
 0Dh "NET_ERR_TIMEOUT" operation timed out
 0Eh "NET_ERR_HOSTUNKNOWN" unable to resolve host name
 0Fh "NET_ERR_NOSERVERS" no name servers configured
 10h "NET_ERR_SERVER_ERR" bad reply from name server
    Subcodes: 0= no error, 1 = Host unreachable
 11h "NET_ERR_BADFORMAT" bad format for IP address or field in IP address struc
            is zero
 12h "NET_ERR_BADARG" invalid argument
 13h "NET_ERR_EOF" foreign host closed its end of connection
 14h "NET_ERR_RESET" connection has been reset
 15h "NET_ERR_WOULDBLOCK" recv() call was done on a non-blocking connection
            with no data available
 16h "NET_ERR_UNBOUND" insufficient resources to do operation
 17h "NET_ERR_NODESC" could not allocate network descriptor
 18h "NET_ERR_BADSYSCALL" invalid/unsupported kernel call
 19h "NET_ERR_CANTBROADCAST" unable to broadcast
 1Ah "NET_ERR_NOTESTAB" operation illegal because connection not established
 1Bh kernel busy, try again later
 1Ch "NET_ERR_ICMPMESG" an ICMP message was received (not on streams)
    (see subcodes below)
---v2.1+---
 1Dh "NET_ERR_TERMINATING" internal kernel fatal error
 1Eh "NET_ERR_TAG_LOCKED" not allowed to set this tag (net_config)
 1Fh "NET_ERR_BAD_INTERFACE" non existent interface specified
 20h "NET_ERR_BADCONFIG" kernel cannot run - bad configuration
 21h "NET_ERR_EMM" expanded memory error
 22h "NET_ERR_CANT_SHUTDOWN" cant unload kernel (multitasker running)
 23h "NET_ERR_PARKED_IN" unable to unhook DOS interrupt
 24h "NET_ERR_NOQIOS" ran out of resources; try again later
 25h "NET_ERR_WOULD_TRUNCATE" datagram too large and "don't truncate" was set

(Table 1745)
Values for subcodes of PC/TCP error 0Ah "NET_ERR_HOST_UNREACHABLE":
 00h    no error
 01h    host unreachable
 02h    ARP failed
 03h    hardware failure
 04h    link failure
 05h    no route
 06h    gateway down

(Table 1746)
Values for subcodes of PC/TCP error 1Ch "NET_ERR_ICMPMESG":
 07h    unrecognised
 08h    can't fragment
 09h    srcr_fail
 0Ah    source quench
 0Bh    time exceeded
 0Ch    parameter problem
 0Dh    admin_prohib. see also code 0Ah
--------N-6100-------------------------------
INT 61 U - PC/TCP kernel v2.05+ - GET DEBUG INFORMATION
    AH = 00h
    DS:SI -> 216-byte buffer for network debugging information (see #1747)
Return: CF clear
    AX = 0000h
    buffer filled
Notes:    this call is not documented by FTP, Inc. for any version
    most of the information returned by this call is available via the
      documented get_kernel_info or net_info commands.
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=2Ah"PC/TCP"

Format of network debugging information:
Offset    Size    Description    (Table 1747)
 00h    DWORD    number of interrupts
 04h    DWORD    receive buffer low-water mark
 08h    DWORD    transmit buffer low-water mark
 0Ch    DWORD    number of packets received
 10h    DWORD    number of packets transmitted
 14h    DWORD    total receive errors
 18h    DWORD    total transmit errors
 1Ch  4 BYTEs    ???
 20h    DWORD    receive resets
 24h    DWORD    transmit resets
 28h    DWORD    number of "runts" received
 2Ch    DWORD    number of alignment errors on received packets
 30h    DWORD    number of CRC errors on received packets
 34h    DWORD    number of parity errors on received packets
 38h    DWORD    number of receive overflow errors
 3Ch    DWORD    number of oversized packets received
 40h    DWORD    number of packets lost due to lack of buffers
 44h    DWORD    receive timeouts
 48h 32 BYTEs    ???
 68h    DWORD    number of transmit collisions
 6Ch    DWORD    number of transmit timeouts
 70h    DWORD    number of transmit underflows
 74h    DWORD    number of lost "crs" on transmit
 78h    DWORD    number of times heartbeat failed on transmit
 7Ch 24 BYTEs    ???
 94h    WORD    free packet buffers
 96h    WORD    total packet buffers
 98h    WORD    minimum number of packet buffers free since kernel started
 9Ah 24 BYTEs    ???
 B2h    DWORD    pointer to TCP connection list???
 B6h    DWORD    pointer to IP routing table???
 BAh 30 BYTEs    ???
--------V-610000-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ZOOM DISPLAY
    AX = 0000h
    BX = zoom factor (0-7)
Desc:    zooms the display based on the given zoom factor
Notes:    INT 61h is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0001h"OPTIMA",AX=0002h"OPTIMA",AX=0005h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"
--------N-610001SF0001-----------------------
INT 61 - Banyan VINES - "Sosock" - OPEN COMMUNICATIONS SOCKET
    AX = 0001h subfn 0001h
    DS:DX -> communications control block (function 0001h)
Return: AX = status (0000h-0002h,0098h,009Eh-00A2h) (see #1748)
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0002h,AX=0001h/SF=0008h,INT 15/AX=DE2Eh

(Table 1748)
Values for VINES status:
 0000h    successful
 0001h    service not installed
 0002h    invalid service ID
 0098h    resource already in use
 0003h-000Ah reserved for BANV interface errors
 0097h    invalid socket identifier
 009Bh    destination node unreachable
 009Ch    message overflow
 009Dh    destination socket nonexistent
 009Eh    address family does not exist
 009Fh    socket type does not exist
 00A0h    protocol does not exist
 00A1h    no more sockets available
 00A2h    no more buffer space available
 00A3h    timeout
 00A5h    resource not available
 00A6h    internal communication failure
 00B1h    resource disconnect

Format of VINES control block to open socket:
Offset    Size    Description    (Table 1749)
 00h    WORD    0001h
 02h    WORD    pointer to argument block
 04h    WORD    error return code
 06h  4 BYTEs    reserved

Format of VINES argument block for opening socket:
Offset    Size    Description    (Table 1750)
 00h    WORD    pointer to 2-byte buffer for socket identifier
 02h    WORD    address family
        0003h Banyan
 04h    WORD    socket type
        in address family 0003h
            0001h IPC socket
            0002h SPP socket
 06h    WORD    protocol number
        FFFFh default
 08h    WORD    pointer to 16-byte buffer for socket address
 0Ah    WORD    local port number
        0000h if service should assign transient port number
        0001h to 01FFh well-known port number (assigned by Banyan)

Format of IPC port:
Offset    Size    Description    (Table 1751)
 00h    WORD    address family (always 0003h for Banyan ports)
 04h  4 BYTEs    network number (server's serial number)
 06h    WORD    subnet number  (0001h = server, 8000h-FFFEh = PC)
 08h    WORD    port ID (0001h-01FFh for "well-known" ports)
 0Ah    BYTE    hop count
 0Bh  5 BYTEs    filler
--------N-610001SF0002-----------------------
INT 61 - Banyan VINES - "Sosend" - INITIATE OUTPUT EVENT
    AX = 0001h subfn 0002h
    DS:DX -> communications control block (function 0002h) (see #1752)
Return: AX = status (0000h-0002h,0097h,009Bh-009Dh,00A2h,00A3h,00B1h)
        (see #1748)
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,AX=0001h/SF=0005h

Format of VINES control block for subfunction 0002h:
Offset    Size    Description    (Table 1752)
 00h    WORD    0002h
 02h    WORD    pointer to argument block (see #1753)
 04h    WORD    error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
        (see #1748)
 06h  4 BYTEs    reserved

Format of VINES argument block for subfunction 0002h:
Offset    Size    Description    (Table 1753)
 00h    WORD    routine metric
 02h    WORD    error return code
 04h    WORD    socket identifier
 06h    WORD    pointer to send buffer (see #1755)
 08h    WORD    length of send buffer
 0Ah    WORD    message request flags (see #1754)
 0Ch 16 BYTEs    socket address (see #1756)
 1Ch    WORD    timeout value in multiples of 200ms
 1Eh    WORD    connection identifier
 20h    WORD    type of request
        0001h send message
        0002h establish a virtual connection
        0003h terminate a virtual connection

Bitfields for message request flags:
Bit(s)    Description    (Table 1754)
 0    async request
 1    reliable message
 2    flush receive buffer on overflow
 3    end of user message received
 4    vectored request (if set, send buffer contains buffer descriptors)
 5    connection-specific receive
 6    change to connection-specific receive mode

Format of buffer descriptor:
Offset    Size    Description    (Table 1755)
 00h    WORD    data segment
 02h    WORD    buffer pointer
 04h    WORD    buffer length
 06h    WORD    character count

Format of VINES socket address for unreliable datagrams:
Offset    Size    Description    (Table 1756)
 00h    WORD    0003h      address family
 02h    DWORD    FFFFFFFFh network number
 06h    WORD    FFFFh      subnet number
 08h    WORD          local port number
 0Ah    BYTE    00h-0Fh      hop count
 0Bh  5 BYTEs    0000h      filler
--------N-610001SF0003-----------------------
INT 61 - Banyan VINES - "Sorec" - RECEIVE INPUT EVENT NOTIFICATION
    AX = 0001h subfn 0003h
    DS:DX -> communications control block (function 0003h) (see #1757)
Return: AX = status (00-0Ah,97h,A2h,A3h) (see #1748)
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0002h

Format of VINES control block for subfunction 0003h:
Offset    Size    Description    (Table 1757)
 00h    WORD    0003h
 02h    WORD    pointer to argument block (see #1758)
 04h    WORD    error return code (0000h,0097h,00A2h,00A3h,00A5h,00A6h,00B1h)
        (see #1748)
 06h  4 BYTEs    reserved

Format of VINES argument block for subfunction 0003h:
Offset    Size    Description    (Table 1758)
 00h    WORD    character count
 02h    WORD    error return code
 04h    WORD    socket identifier
 06h    WORD    pointer to receive buffer
 08h    WORD    length of receive buffer
 0Ah    WORD    message request flags (see #1754)
 0Ch 16 BYTEs    socket address
 1Ch    WORD    timeout value in multiples of 200ms
 1Eh    WORD    connection identifier
 20h    WORD    type of response
        0001h message received
        0002h virtual connection established
        0003h virtual connection terminated

Format of buffer descriptor:
Offset    Size    Description    (Table 1759)
 00h    WORD    data segment
 02h    WORD    buffer pointer
 04h    WORD    buffer length
 06h    WORD    character count
--------N-610001SF0004-----------------------
INT 61 - Banyan VINES - "Soclose" - CLOSE A SOCKET
    AX = 0001h subfn 0004h
    DS:DX -> communications control block (function 0004h)
Return: AX = status (0000h-000Ah,0097h) (see #1748)
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,INT 15/AX=DE2Eh

Format of VINES control block to close socket:
Offset    Size    Description    (Table 1760)
 00h    WORD    0004h
 02h    WORD    pointer to argument block (see #1761)
 04h    WORD    error return code (see #1748)
 06h  4 BYTEs    reserved

Format of VINES argument block for closing socket:
Offset    Size    Description    (Table 1761)
 00h    WORD    socket identifier
--------N-610001SF0005-----------------------
INT 61 - Banyan VINES - "Sowait" - WAIT FOR ASYNCHRONOUS EVENT COMPLETION
    AX = 0001h subfn 0005h
    DS:DX -> communications control block (see #1763)
Return: AX = status (0000h-000Ah,00A2h,00A3h) (see #1762)
Range:    INT 60h to INT 66h
Notes:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
    returns results for all asynchronous operations invoked from the
      data segment used for this call
SeeAlso: AX=0001h/SF=0002h,AX=0001h/SF=0009h

(Table 1762)
Values for VINES function status:
 0000h    successful
 0001h    service not installed
 0002h    invalid service ID
 0003h-000Ah reserved for BANV interface errors
 00A2h    no more buffer space available
 00A3h    timeout event

Format of VINES control block for subfunction 0005h:
Offset    Size    Description    (Table 1763)
 00h    WORD    0005h
 02h    WORD    pointer to argument block (see #1764)
 04h    WORD    error return code
 06h  4 BYTEs    reserved

Format of VINES argument block for subfunction 0005h:
Offset    Size    Description    (Table 1764)
 00h    WORD    pointer to WORD event pointer
 02h    WORD    timeout in multiples of 200ms, FFFFh = infinite
--------N-610001SF0008-----------------------
INT 61 - Banyan VINES - "Sosession" - REGISTER APPLICATION WITH COMM SERVICE
    AX = 0001h subfn 0008h
    DS:DX -> communications control block (function 0008h)
Return: AX = status
        0000h  successful
        00A2h  no more buffer space available
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0001h,AX=0001h/SF=0009h

Format of VINES control block for subfunction 0006h:
Offset    Size    Description    (Table 1765)
 00h    WORD    0008h
 02h    WORD    process type
        0001h transient process
        0002h resident process
 04h    WORD    error return code
 06h  4 BYTEs    reserved
--------N-610001SF000B-----------------------
INT 61 - Banyan VINES - "Soint" - SET USER COMPLETION FUNCTION
    AX = 0001h subfn 000Bh
    DS:DX -> communications control block (function 000Bh) (see #1766)
Return: AX = status (00h-0Ah,A2h) (see #1762)
Range:    INT 60h to INT 66h
Note:    The Banyan interrupt handler is identified by the string "BANV" in
      the four bytes immediately preceding the interrupt handler
SeeAlso: AX=0001h/SF=0005h,AX=0001h/SF=0008h

Format of VINES control block for subfunction 000Bh:
Offset    Size    Description    (Table 1766)
 00h    WORD    000Bh
 02h    WORD    pointer to argument block (see #1767)
 04h    WORD    error return code (see #1748)
 06h  2 BYTEs    reserved
 08h    WORD    user CS register

Format of VINES argument block for subfunction 000Bh:
Offset    Size    Description    (Table 1767)
 00h    WORD    pointer to user interrupt function (see #1768)
 02h    WORD    pointer to user stack
 04h    WORD    initial timeout value in multiples of 200ms, FFFFh = infinite

(Table 1768)
Values FAR user function is invoked with:
    SS = DS = ES = segment of control block
    STACK:    DWORD    return address
        WORD    argument pointer (sosend or sorec argument block)
        WORD    error return code
            0000h argument pointer is valid
            00A3h timeout
--------V-610001-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - CENTER ZOOM WINDOW
    AX = 0001h
    BX = X coordinate to center
    CX = Y coordinate to center
Desc:    Positions the zoom window such that the specified window-relative
      coordinates appear as close as possible to the center of the
      display.  Useful for scrolling and panning.
Range:    unknown
Notes:    INT 61h is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0002h"OPTIMA",AX=0005h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"
--------I-610002-----------------------------
INT 61 - Banyan VINES - 3270 INTERFACE
    AX = 0002h
    BH = function number (see #1769)
    DS:CX -> argument block (except BH=00h,1Ah)
Return: AX = status (see #1770)
Notes:    Either 3270/SNA or 3270/BSC interface may use AX=0002h, depending on
      which is loaded first.  The other interface will use AX=000Ah
    Status codes greater than 63h indicate an inconsistency in the 3270/SNA
      or 3270/BSC resident driver, which must be reloaded by the user

(Table 1769)
Values for VINES 3270 interface function number:
 00h "pi2reset"  reset 3270/SNA or 3270/BSC driver
 02h "pi2bsc"     (3270/BSC only)
 03h "pi2get"    get information stored in 3270 resident driver
 04h "pi2put"    store information in 3270 resident driver
 05h "pi2gcur"   get current screen position
 07h "pi2sdat"   send data keystroke
 08h "pi2scom"   send command keystroke
 0Ah "pi2field"  get field info for arbitrary screen positions
 0Fh "pi2stat"   get logical unit/device status
 12h "pi2nlus"   determine logical unit/device assignment
 13h "pi2gate"   specifies comm port address to gateway service
 14h "pi2attach" attach a logical unit/device
 15h "pi2sdev"   save logical unit/device info in resident driver
        (not supported in >3.0)
 16h "pi2gdev"   get device information (not supported in >3.0)
 17h "pi2luinfo" get info about specific logical unit/device
 18h "pi2gerr"   get finer error detail
 19h "pi2dhold"  (3270/SNA only)  holds a 3270 device
 1Ah "pi2shut"   release memory-resident module
 1Ch "pi2sprof"  save profile info in res driver (not supp in >3.0)
 1Dh "pi2gprof"  get prevsly stored profile info (not supp in >3.0)

(Table 1770)
Values for VINES 3270 status:
 0000h    successful
 000Bh    invalid parameter or data does not fit data area
 000Ch    another code path currently active in resident driver
 000Dh    operation currently not allowed
 0032h    encountered connection disconnect error
 0033h    encountered "sosend" completion error
 0034h    encountered "sosend" communication error
 0035h    attach request refused.    extended error info via "pi2gerr":
    01h resource unavailable
    02h invalid type
    03h version mismatch
    04h invalid logical unit number
    05h error during ARL processing
    06h no access for user
 0071h    encountered "sosock" error
 0072h    encountered unrecognizable error
 0073h    encountered "sowait" error (extended info via "pi2gerr")
 0074h    encountered invalid type-of-request on "sowait"
 0075h    encountered "sorec" error (extended info via "pi2gerr")
 0076h    encountered "sorec" completion error (ext info via "pi2gerr")
 0077h    encountered connection request
 0078h    encountered unrecognizable data
 0079h    encountered unknown connection ID (ext info via "pi2gerr")

Format of argument block for BH=03h,04h:
Offset    Size    Description    (Table 1771)
 00h    WORD    size of data area (max 256)
 02h  N BYTEs    data area

Format of argument block for BH=05h:
Offset    Size    Description    (Table 1772)
 00h    WORD    logical unit/device number
 02h    WORD    pointer to WORD buffer for cursor index
 04h    WORD    pointer to BYTE buffer for current field attribute

Format of argument block for BH=07h:
Offset    Size    Description    (Table 1773)
 00h    WORD    logical unit/device number
 02h    WORD    ASCII data byte
 04h    WORD    pointer to WORD count of characters which will need updating

Format of argument block for BH=08h:
Offset    Size    Description    (Table 1774)
 00h    WORD    logical unit/device number
 02h    WORD    3270 keystroke (see #1775)

(Table 1775)
Values for 3270 keystroke:
 0000h    Enter
 0001h    Clear
 0002h    PA1
 0003h    PA2
 0004h    PA3
 0005h    PF1
 ...
 001Ch    PF24
 001Dh    CSELECT (cursor select)
 001Eh    Insert
 001Fh    Delete
 0020h    EOField
 0021h    EINPUT (erase input)
 0022h    Reset
 0023h    Attention
 0024h    SysReq
 0025h    Duplicate
 0026h    Fieldmark
 0027h    Home
 0028h    NextLine
 0029h    Tab
 002Ah    BackTab
 002Bh    cursor up
 002Ch    cursor down
 002Dh    cursor right
 002Eh    cursor left
 002Fh    double cursor right
 0030h    double cursor left
 0031h    PRINT
 0032h    CANCEL
 0033h    Backspace

Format of argument block for BH=0Ah:
Offset    Size    Description    (Table 1776)
 00h    WORD    logical unit/device number
 02h    WORD    screen index
 04h    WORD    pointer to WORD buffer for field length
 06h    WORD    pointer to WORD buffer for offset in screen of field start

Format of argument block for BH=0Fh:
Offset    Size    Description    (Table 1777)
 00h    WORD    logical unit/device number
 02h    WORD    clear mask (clear these bits of status after returning status)
 04h    WORD    pointer to WORD buffer for device status (see #1778)

Bitfields for device status:
Bit(s)    Description    (Table 1778)
 10    status modified
 9    buffer modified
 8    set cursor
 5    sound alarm
 1-0    size of print line for printer logical units
    00  unformatted line
    01  40-character line
    10  64-character line
    11  80-character line

Format of argument block for BH=12h:
Offset    Size    Description    (Table 1779)
 00h    WORD    pointer to WORD buffer for number of logical units or devices
 02h    WORD    pointer to WORD buffer for version number
 04h    WORD    pointer to 64-byte buffer for logical unit/device list

Format of argument block for BH=13h:
Offset    Size    Description    (Table 1780)
 00h 16 BYTEs    communications port address (see #1751)

Format of argument block for BH=14h:
Offset    Size    Description    (Table 1781)
 00h    WORD    logical unit/device number
        0000h attach any free device of the specified type
 02h    WORD    logical unit/device type
        (3270/SNA) 01h, 02h, or 03h
        (3270/BSC) 02h display
        (3270/BSC) 03h printer
 04h    WORD    pointer to WORD buffer for attached logical unit/device number

Format of argument block for BH=16h:
Offset    Size    Description    (Table 1782)
 00h    WORD    pointer to 18-byte buffer for device block (see #1787)
        first WORD must be set to desired logical unit/device number

Format of argument block for BH=17h:
Offset    Size    Description    (Table 1783)
 00h    WORD    logical unit/device number
 02h    WORD    pointer to information block in caller's DS (see #1788)

Format of argument block for BH=18h:
Offset    Size    Description    (Table 1784)
 00h    WORD    pointer to WORD buffer for major error code
 02h    WORD    pointer to WORD buffer for minor error code

Format of argument block for BH=19h:
Offset    Size    Description    (Table 1785)
 00h    WORD    logical unit/device number

Format of argument block for BH=1Ch,1Dh:
Offset    Size    Description    (Table 1786)
 00h    WORD    pointer to profile block in caller's DS (see #1791)

Format of device block, argument block for BH=15h:
Offset    Size    Description    (Table 1787)
 00h    WORD    logical unit/device number
 02h    WORD    logical unit/device type
 04h    WORD    display model number
 06h    WORD    numeric checking
 08h    WORD    status line
 0Ah    BYTE    unprotected normal field attribute
 0Bh    BYTE    unprotected intensified field attribute
 0Ch    BYTE    protected normal field attribute
 0Dh    BYTE    protected intensified field attribute
 0Eh    WORD    reserved
 10h    WORD    printer port number

Format of information block:
Offset    Size    Description    (Table 1788)
 00h    WORD    device model number
 02h    DWORD    screen buffer pointer
 06h    DWORD    status line pointer (see #1789)
 0Ah    DWORD    reserved

Format of status line:
Offset    Size    Description    (Table 1789)
 00h    BYTE    comm line status
        00h inactive
        01h active
 01h    BYTE    activation level
        01h physical unit activated
        02h logical unit also activated
        03h session is bound
 02h    BYTE    data traffic state
        00h inactive
        01h active
 03h    BYTE    screen ownership
        00h SLU->PLU session owns screen
        01h SLU->SSCP session owns screen
 04h    BYTE    keyboard status (see #1790)
 05h    BYTE    insert mode
        01h if in insert mode
 06h    BYTE    numeric
        01h if current screen buffer is numeric only
 07h    BYTE    printer status
        00h printer not assigned
        01h printer is inactive
        02h printer error
        03h currently printing
        04h printer is busy
        05h printer is very busy
 08h    BYTE    printer assignment
 09h    BYTE    maximum size of network name
 0Ah  N BYTEs    ASCIZ network name
    BYTE    maximum size of message window
      M BYTEs    null-terminated message window
    BYTE    code set
        00h EBCDIC
        01h ASCII
      M BYTEs    extended attributes
        01h extended attributes are in effect (stored at screen+1920)
            each extended attribute specifies
            bits 0,1: 00=normal, 01=blink, 10=reverse, 11=underscor
            bits 2-4: 000=default,001=blue,010=red,011=pink,
                  100=green,101=turquoise,110=yellow,111=white
    BYTE    extended color
        01h other than base color is in effect

(Table 1790)
Values for keyboard status:
 00h    UNLOCK - ready to accept data
 01h    TIME - aid was struck
 02h    SYSTEM - received response no restore
 03h    FUNCTION - unavailable keyboard function
 04h    INPUT - not currently used
 05h    ENDFIELD - field filled in insert mode
 06h    PROTECTED - attempt to enter in protected field
 07h    NUMERIC - attempt to enter in numeric field
 08h    PROGRAM - error in outbound data stream

Format of profile block:
Offset    Size    Description    (Table 1791)
 00h 64 BYTEs    gateway service name
 40h 16 BYTEs    gateway comm port address
 50h    WORD    primary logical unit number
 52h    WORD    secondary logical unit type
 54h    WORD    secondary logical unit number
 56h    WORD    printer assignment
 58h 50 BYTEs    keyboard definitions filename
--------V-610002-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - END ZOOM
    AX = 0002h
Desc:    switches off zoom and returns window to its original state
Range:    unknown
Notes:    INT 61h is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610003SF00-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INIT USER BUFFER PTR INFO
    AX = 0003h subfn 00h
    DS:BX -> argument block (see #1793)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=08h,AX=0003h/SF=0Dh

(Table 1792)
Values for VINES function status:
 0000h    successful
 000Bh    invalid session ID
 000Ch    session not active
 000Dh    invalid request type
 000Eh    invalid parameters
 000Fh    out of heap space
 0010h    timeout on send
 0011h    Banyan communications error
 0012h    session not waiting for host
 0013h    session is active
 0014h    duplicate suspend session request
 0015h    no session suspended
 0016h    ring data buffer full
 0017h    printer error encountered
 0018h    Banyan communications error
 0019h    unable to make connection
 001Ah    no ring buffer specified at startup
 001Bh    service is down
 001Ch    invalid service name
 001Dh    service is closed
 001Eh    invalid connection name
 001Fh    max session limit reached for service
 0020h    access rights list for connection/dialout does not include this user
 0021h    service not responding
 0022h    missing telephone number

Format of VINES argument block:
Offset    Size    Description    (Table 1793)
 00h    BYTE    session ID (00h)
 01h    BYTE    00h (func "initialize user buffer pointer information area")
 02h    WORD    -> user buffer ptr info area in caller's current DS (see #1794)

Format of user buffer ptr info area:
Offset    Size    Description    (Table 1794)
 00h    WORD    flags
        0000h don't read interface's data buffer
        0001h read data buffer
 02h    DWORD    pointer to ring buffer
 06h    WORD    length of ring buffer
 08h    WORD    ring buffer offset to last byte read by caller
 0Ah    DWORD    pointer to WORD containing offset of last byte
          in ring buffer filled
 0Eh    DWORD    pointer to screen buffer
 12h    DWORD    pointer to field containing cursor position
 16h    DWORD    pointer to terminal status area (see #1795)

Format of VINES terminal status area:
Offset    Size    Description    (Table 1795)
 00h    BYTE    status of session: 4Eh=oNline, 46h=oFfline, 57h=Waiting
 01h    BYTE    terminal type (00h=VT100, 01h=TTY, 02h=VT52, 03h=IBM3101)
 02h    BYTE    current keypad mode (VT100,VT52 only)
        4Eh ("N") numeric mode
        41h ("A") application mode
 03h  4 BYTEs    current state of LEDs (VT100 only)
        00h off
        01h on
 07h    WORD    line error count
 09h    WORD    primary error code (see #1796)
 0Bh    WORD    secondary error code

(Table 1796)
Values for VINES primary error code:
 0000h    no error
 0001h    unable to make connection
 0002h    communications error, restart session
 0003h    async terminal emulation service unavailable
 0004h    lost carrier
 0005h    all matching lines busy
 0006h    no lines defined for connection name
 0007h    no dial lines available on server
 0008h    no matching dial lines available
 0009h    out of heap space
 000Ah    service error encountered
 000Bh    timed out waiting to connect
 000Ch    communications error
 000Dh    communications error
 000Eh    host wants file transferred to/from PC
 000Fh    host software changed session parameter
 0010h    host software changed tap settings
 0011h    host software changed LED indicator
 0012h    host software changed display background (secondary error code 00h for
      white on black, 01h for black on white)
 0013h    host software changed display option (secondary error code 00h for off,
      01h for on)
 0014h    communications error
 0015h    communications error
 0016h    unable to make connection
 0017h    unable to make connection
--------N-610003SF01-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SEND TO HOST
    AX = 0003h subfn 01h
    DS:BX -> argument block (see #1797)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=02h,AX=0003h/SF=14h

Format of VINES argument block for Function 0003h subfunction 01h:
Offset    Size    Description    (Table 1797)
 00h    BYTE    session ID (00h)
 01h    BYTE    01h (function "send to host")
 02h    BYTE    type
        00h ASCII byte
        01h ASCII string
        02h terminal function code
        03h up arrow
        04h down arrow
        05h left arrow
        06h right arrow
        07h break
 03h  N BYTEs    type-specific info (see #1798)

Format of type-specific info:
Offset    Size    Description    (Table 1798)
---ASCII byte---
 03h    BYTE    byte to send to host
---ASCII string---
 03h    WORD    length of string
 05h    WORD    pointer to string
---terminal function code (VT52/VT100)---
 03h    BYTE    function code
        00h keypad 0
        01h keypad 1
        ...
        09h keypad 9
        0Ah keypad -
        0Bh keypad ,
        0Ch keypad .
        0Dh keypad ENTER
        0Eh PF1
        0Fh PF2
        10h PF3
        11h PF4
---terminal function code (IBM3101)---
 03h    BYTE    function code
        00h PF1
        ...
        07h PF8
        08h Home
--------N-610003SF02-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - "CONTROL MONITOR"
    AX = 0003h subfn 02h
    DS:BX -> argument block (see #1799)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=03h,AX=0003h/SF=05h

Format of VINES argument block for Function 0003h subfunction 02h:
Offset    Size    Description    (Table 1799)
 00h    BYTE    session ID (00h)
 01h    BYTE    02h (function "control monitor")
 02h    BYTE    display flag
        00h don't display data received from host
        01h display data
--------N-610003SF03-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - "FLOW CONTROL DATA"
    AX = 0003h subfn 03h
    DS:BX -> argument block (see #1800)
Return: AX = status (see #1792)
Desc:    this function permits the caller to freeze/unfreeze the display and
      the ring buffer
SeeAlso: AX=0003h/SF=02h,AX=0003h/SF=06h

Format of VINES argument block for Function 0003h subfunction 03h:
Offset    Size    Description    (Table 1800)
 00h    BYTE    session ID (00h)
 01h    BYTE    03h (function "flow control data")
 02h    BYTE    flow control flag
        00h allow characters to be put into display or ring buffer
        01h don't place any more characters into display or ring buffer
--------N-610003SF04-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - END ACTIVE SESSION
    AX = 0003h subfn 04h
    DS:BX -> argument block (see #1801)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=0Ah,AX=0003h/SF=0Dh,AX=0003h/SF=0Fh

Format of VINES argument block for ending active session:
Offset    Size    Description    (Table 1801)
 00h    BYTE    session ID (00h)
 01h    BYTE    04h (function "end active session")
--------N-610003SF05-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET SESSION PARAMETER
    AX = 0003h subfn 05h
    DS:BX -> argument block (see #1802)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=06h,AX=0003h/SF=08h

Format of VINES argument block for setting session parameters:
Offset    Size    Description    (Table 1802)
 00h    BYTE    session ID (00h)
 01h    BYTE    05h (function "set session parameter")
 02h    BYTE    parameter number (see #1803)
 03h    BYTE    new parameter value

(Table 1803)
Values for parameter number:
 00h    line speed (00h=any, 01h=50, 02h=110, 03h=134.5, 04h=150,
          05h=300, 06h=600, 07h=1200, 08h=2400, 09h=4800, 0Ah=9600)
 01h    parity (00h=none, 01h=odd, 02h=even)
 02h    duplex (00h=full, 01h=half)
 03h    character size (00h=7 bits, 01h=8 bits)
 04h    stop bits (00h=1, 01h=2)
 05h    XON/XOFF flow control (00h=no, 01h=yes)
 07h    intercharacter delay in tenths of a second
 08h    interline delay in tenths of a second
 09h    auto linefeed (00h=no, 01h=yes)
 0Ah    filter control characters (00h=no, 01h=yes)
 0Bh    terminal type (00h=VT100,01h=glassTTY,02h=VT52,03h=IBM3101)
 0Ch    auto wrap (00h=no, 01h=yes)
 0Dh    cursor shape (00h=underscore, 01h=block)
 0Eh    character set (00h=UK, 01h=US ASCII)
 0Fh    printer port (00h=LPT1, 01h=LPT2, 02h=LPT3)
--------N-610003SF06-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET SESSION PARAMETER
    AX = 0003h subfn 06h
    DS:BX -> argument block (see #1804)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=05h,AX=0003h/SF=07h

Format of VINES argument block for getting session parameters:
Offset    Size    Description    (Table 1804)
 00h    BYTE    session ID (00h)
 01h    BYTE    06h (function "get session parameter")
 02h    BYTE    parameter number (see #1803)
 03h    BYTE    (return) current parameter value
--------N-610003SF07-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET TAB SETTINGS
    AX = 0003h subfn 07h
    DS:BX -> argument block (see #1805)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=05h,AX=0003h/SF=08h

Format of VINES argument block for setting tab settings:
Offset    Size    Description    (Table 1805)
 00h    BYTE    session ID (00h)
 01h    BYTE    07h (function "set tab settings")
 02h    WORD    pointer to 80-byte buffer in caller's current DS
          each byte = 00h if no tab, 01h if tab at that position
--------N-610003SF08-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET TAB SETTINGS
    AX = 0003h subfn 08h
    DS:BX -> argument block (see #1806)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=07h

Format of VINES argument block for getting tab settings:
Offset    Size    Description    (Table 1806)
 00h    BYTE    session ID (00h)
 01h    BYTE    08h (function "get tab settings")
 02h    WORD    pointer to 80-byte buffer in caller's current DS
        each byte set to 00h if no tab, 01h if tab at that position
--------N-610003SF09-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - REFRESH EMULATION SCREEN
    AX = 0003h subfn 09h
    DS:BX -> argument block (see #1807)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=0Bh

Format of VINES argument block for Function 0003h subfunction 09h:
Offset    Size    Description    (Table 1807)
 00h    BYTE    session ID (00h)
 01h    BYTE    09h (function "refresh emulation screen")
--------N-610003SF0A-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SUSPEND SESSION TEMPORARILY
    AX = 0003h subfn 0Ah
    DS:BX -> argument block (see #1808)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=09h,AX=0003h/SF=0Bh,AX=0003h/SF=0Dh

Format of VINES argument block:
Offset    Size    Description    (Table 1808)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Ah (function "suspend session temporarily")
 02h    WORD    size of session information to be saved
 04h    WORD    pointer to buffer in caller's DS
--------N-610003SF0B-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - RESUME SUSPENDED SESSION
    AX = 0003h subfn 0Bh
    DS:BX -> argument block (see #1809)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=09h,AX=0003h/SF=0Ah

Format of VINES argument block:
Offset    Size    Description    (Table 1809)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Bh (function "restore previously suspended session")
 02h    WORD    size of buffer into which session info is restored
 04h    WORD    pointer to buffer in caller's DS
--------N-610003SF0C-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - SET SCROLL LOCK CHECKING
    AX = 0003h subfn 0Ch
    DS:BX -> argument block (see #1810)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h

Format of VINES argument block:
Offset    Size    Description    (Table 1810)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Ch (function "set state of scroll lock checking")
 02h    BYTE    check_scroll_lock flag
        00h off
        01h on (display of host data stopped while ScrollLock on)
--------N-610003SF0D-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - EXIT EMULATION
    AX = 0003h subfn 0Dh
    DS:BX -> argument block (see #1811)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=0Ah

Format of VINES argument block:
Offset    Size    Description    (Table 1811)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Dh (function "exit emulation")
--------N-610003SF0E-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON CHAR FROM HOST
    AX = 0003h subfn 0Eh
    DS:BX -> argument block (see #1812)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=14h

Format of VINES argument block:
Offset    Size    Description    (Table 1812)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Eh (function "interrupt on character from host")
 02h    DWORD    pointer to routine to be called (0000h:0000h = don't call)
 06h    DWORD    stack pointer to use when call is made
--------N-610003SF0F-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START A SESSION
    AX = 0003h subfn 0Fh
    DS:BX -> argument block (see #1813)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=04h,AX=0003h/SF=0Bh

Format of VINES argument block:
Offset    Size    Description    (Table 1813)
 00h    BYTE    session ID (00h)
 01h    BYTE    0Fh (function "start a session")
 02h    WORD    pointer to information area in caller's current DS (see #1814)

Format of VINES information area:
Offset    Size    Description    (Table 1814)
 00h    WORD    length of service name
 02h    WORD    pointer to service name in caller's DS
 04h    BYTE    type of connection (00h=connection name, 01h=dialout)
 05h    WORD    length of connection name/telephone number
 07h    WORD    pointer to connection name/telephone number
--------N-610003SF10-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START/STOP PRINTING
    AX = 0003h subfn 10h
    DS:BX -> argument block (see #1815)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=06h,AX=0003h/SF=13h

Format of VINES argument block:
Offset    Size    Description    (Table 1815)
 00h    BYTE    session ID (00h)
 01h    BYTE    10h (function "start/stop printing of data received from host)
 02h    WORD    print capture flag (00h=off, 01h=on)
--------N-610003SF11-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET FILE TRANSFER PARAMETERS
    AX = 0003h subfn 11h
    DS:BX -> argument block (see #1816)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=12h

Format of VINES argument block:
Offset    Size    Description    (Table 1816)
 00h    BYTE    session ID (00h)
 01h    BYTE    11h (function "get file transfer parameters")
 02h    WORD    pointer to info area in caller's current DS (see #1817)

Format of VINES info area:
Offset    Size    Description    (Table 1817)
 00h    BYTE    protocol flag (00h none, 01h Kermit)
 01h    BYTE    direction flag (00h send, 01h receive)
 02h    BYTE    length of null-terminated PC filename
 03h    DWORD    pointer to null-terminated PC filename
 07h    BYTE    length of null-terminated host filename
 08h    DWORD    pointer to null-terminated host filename
--------N-610003SF12-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - GET CONNECTION INFORMATION
    AX = 0003h subfn 12h
    DS:BX -> argument block (see #1818)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=11h,AX=0003h/SF=15h

Format of VINES argument block:
Offset    Size    Description    (Table 1818)
 00h    BYTE    session ID (00h)
 01h    BYTE    12h (function "get connection information")
 02h    WORD    offset of buffer for connection information (see #1819)

Format of VINES connection information:
Offset    Size    Description    (Table 1819)
 00h    WORD    length of service name (returned)
 02h    WORD    pointer to 64-byte buffer for service name
 04h    BYTE    type of connection
        00h connection name
        01h dialout
 05h    WORD    length of connection name/telephone number
 07h    WORD    pointer to 64-byte buffer for name/telno
 09h    BYTE    server line number being used (returned)
--------N-610003SF13-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - START/STOP TRACING TRAFFIC
    AX = 0003h subfn 13h
    DS:BX -> argument block (see #1820)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=0Eh

Format of VINES argument block:
Offset    Size    Description    (Table 1820)
 00h    BYTE    session ID (00h)
 01h    BYTE    13h (function "start/stop tracing data traffic in session")
 02h    BYTE    trace flag (00h=off, 01h=on)
--------N-610003SF14-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON HOST MESSAGE
    AX = 0003h subfn 14h
    DS:BX -> argument block (see #1821)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=0Eh

Format of VINES argument block:
Offset    Size    Description    (Table 1821)
 00h    BYTE    session ID (00h)
 01h    BYTE    14h (function "interrupt on message from host")
 02h    DWORD    pointer to routine to be called (0000h:0000h = don't call)
 06h    DWORD    stack pointer to use when call is made
--------N-610003SF15-------------------------
INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - RESET ERROR
    AX = 0003h subfn 15h
    DS:BX -> argument block (see #1822)
Return: AX = status (see #1792)
SeeAlso: AX=0003h/SF=00h,AX=0003h/SF=12h

Format of VINES argument block:
Offset    Size    Description    (Table 1822)
 00h    BYTE    session ID (00h)
 01h    BYTE    15h (function "reset error")
--------V-610003-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - REPORT ZOOM FACTOR
    AX = 0003h
Return: AX = zoom factor
Desc:    returns the current zoom factor
Range:    unknown
Notes:    INT 61h is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0005h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610004SF0008-----------------------
INT 61 - Banyan VINES - GET SERVER SERIAL NUMBER
    AX = 0004h subfn 0008h
    DS:DX -> request block (see #1823)
Return: AX = status
        0000h server ID returned in request block
        000Fh invalid drive
        0015h drive not ready

Format of VINES request block for getting server serial number:
Offset    Size    Description    (Table 1823)
 00h    WORD    0008h
 02h    WORD    drive number (0=default, 1=A, ...)
 04h  6 BYTEs    buffer for server ID
--------V-610004-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ENTER SPECIFY MODE
    AX = 0004h
Range:    unknown
Notes:    Specify Mode is enabled by hot key (seeAlso below), and allows
      panning and zooming via the numeric keypad.
    INT 61 is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0007h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610005-----------------------------
INT 61 - Banyan VINES - PRINTER CONTROL
    AX = 0005h
    DS:DX -> request block (see #1824)
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
SeeAlso: INT 2F/AX=D702h

Format of VINES request block for printer control:
Offset    Size    Description    (Table 1824)
 00h    WORD    function
        0201h "endspool" all data for a print job has been sent
        0205h "getactive" get currently active printer port
 02h    WORD    number of active port (1-3)
 04h    WORD    ??? (0 for func 0201h, 3 for func 0205h)
 06h    WORD    0000h
--------V-610005-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync - QUERY ZOOM WINDOW
    AX = 0005h
    BX:CX -> buffer for window parameters (see #1825)
Range:    unknown
Notes:    INT 61 is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0003h"OPTIMA",AX=0006h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"

Format of Optima 1024 window parameters:
Offset    Size    Description    (Table 1825)
 00h    WORD    X start of zoom window
 02h    WORD    Y start of zoom window
 04h    WORD    X end of zoom window
 06h    WORD    Y end of zoom window
 08h    WORD    current zoom factor
 0Ah    WORD    zoom offset start X
 0Ch    WORD    zoom offset start Y
--------V-610006-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM WINDOW
    AX = 0006h
    BX:CX -> zoom window description (see #1826)
Range:    unknown
Notes:    width of zoom window must be a multiple of the pixel replication (zoom)
      factor
    INT 61 is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0001h"OPTIMA",AX=0005h"OPTIMA",AX=0008h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA"

Format of Optima 1024 zoom window description:
Offset    Size    Description    (Table 1826)
 00h    WORD    X start of zoom window
 02h    WORD    Y start of zoom window
 04h    WORD    X end of zoom window
 06h    WORD    Y end of zoom window
--------V-610007-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY APPLICATION KEY
    AX = 0007h
Return: AX = current state (0000h/0001h)
Desc:    returns the current toggle state of the application (END) key in
      specify mode. E.g. in the OPTIMA AutoCAD driver, 0 means AutoCAD
      calls INT 61/AX=0001h every time the crosshair cursor moves.
Notes:    In specify mode, the END key has been reserved for applications.
    INT 61 is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0001h"OPTIMA",AX=0004h"OPTIMA"
SeeAlso: INT 16/AH=FFh"OPTIMA",INT 7A/AX=0001h"AutoCAD"
--------N-610007BX0002-----------------------
INT 61 - Banyan VINES - GET PORTS FOR A SERVICE
    AX = 0007h
    BX = 0002h
    DS:DX -> StreetTalk service name
    DS:DI -> port record block (see #1828)
Return: AX = status (see #1827)
SeeAlso: AX=0007h/BX=0004h

(Table 1827)
Values for VINES function status:
 0000h    successful
 0001h    PC network software not installed or incompatible
 03E9h    incorrect name syntax
 03EAh    organization name too long
 03EBh    group name too long
 03ECh    item name too long
 03EDh    StreetTalk name too long
 03F3h    organization not found
 03F4h    group not found
 03F5h    StreetTalk name not found
 03F8h    not a StreetTalk name
 0409h    modify access denied
 040Dh    appropriate StreetTalk name unavailable

Format of VINES port record block:
Offset    Size    Description    (Table 1828)
 00h    WORD    number of 17-byte elements
 02h 17 BYTEs    element (byte 00h = input port type, bytes 01h-10h = port)
        (see #1751 for port format)
--------N-610007BX0004-----------------------
INT 61 - Banyan VINES - SET PORTS FOR A SERVICE
    AX = 0007h
    BX = 0004h
    DS:DX -> StreetTalk name of service
    DS:DI -> port record block (see #1829)
Return: AX = status (see #1827)
SeeAlso: AX=0007h/BX=0002h

Format of VINES port record block:
Offset    Size    Description    (Table 1829)
 00h    WORD    number of 17-byte elements
 02h 17 BYTEs    element: byte 00h = input port type, 01h-10h = port
        (see #1751 for port format)
--------N-610007BX0005-----------------------
INT 61 - Banyan VINES - GET USER NAME
    AX = 0007h
    BX = 0005h
    DS:DX -> 64-byte buffer for user's StreetTalk name
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
Note:    if no user logged in, first byte of returned name will be 00h
SeeAlso: AX=0007h/BX=0007h
--------N-610007BX0006-----------------------
INT 61 - Banyan VINES - TRANSLATE ERROR INTO ASCII STRING
    AX = 0007h
    BX = 0006h
    SI = error code (>100)
    DS:DX -> 80-byte buffer for error text
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
--------N-610007BX0007-----------------------
INT 61 - Banyan VINES - VERIFY EXISTENCE OF NAME AND RETURN CANONICAL FORM
    AX = 0007h
    BX = 0007h
    DS:DX -> NiceName block (see #1830)
Return: AX = status (see #1827)
SeeAlso: AX=0007h/BX=0005h,AX=0007h/BX=0008h

Format of VINES NiceName block:
Offset    Size    Description    (Table 1830)
 00h    WORD    type of name
        0064h (100) organization
        00C8h (200) group
        012Ch (300) item
 02h    WORD    pointer to ASCIZ input name
 04h    WORD    pointer to 64-byte buffer for output name
--------N-610007BX0008-----------------------
INT 61 - Banyan VINES - ENUMERATE StreetTalk NAMES
    AX = 0007h
    BX = 0008h
    DS:DX -> enumerate block (see #1831)
Return: AX = status
        0000h successful
        0411h all matching names have been returned
        0412h some groups unavailable, all available matches returned
Note:    each program using this call should continue until a nonzero status
      is returned; otherwise, some resources will not be freed for several
      hours
SeeAlso: AX=0007h/BX=0007h

Format of VINES enumerate block:
Offset    Size    Description    (Table 1831)
 00h    WORD    return code
 02h    WORD    pointer to pattern string
 04h    WORD    enumerate type
        0064h (100) organization
        00C8h (200) group
        012Ch (300) item
 06h    WORD    enumerate class
        0000h unspecified (return all matching items)
        0001h user names
        0002h service names
        0003h list names
        0004h nicknames
 08h    WORD    pointer to category criteria block (see #1832) or 0
 0Ah    WORD    pointer to array of 64-byte returned names
 0Ch    WORD    number of names returned
 0Eh  6 BYTEs    reserved for subsequent enumerated calls (set to zeros on first
          call)

Format of category criteria block:
Offset    Size    Description    (Table 1832)
 00h    WORD    exclude flag
        0000h return only items with the specified categories
        0001h return all items except those with the given categories
 02h    WORD    number of categories
 04h    WORD    category 1 value
 06h    WORD    category 2 value
        ...

(Table 1833)
Values for common VINES service categories:
 0002h    file service
 0003h    print service
 0004h    mail service
 0005h    StreetTalk
 0006h    time service
 0008h    semaphore service
 0009h    3270/SNA service
 000Ah    asynchronous terminal emulation service
 000Ch    NETBIOS service
 000Dh    PC-based service
--------V-610008-----------------------------
INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM OFFSET
    AX = 0008h
    BX = X start of zoom offset
    CX = Y start of zoom offset
Desc:    specifies the first byte of video memory to appear in the zoom window
Range:    unknown
Notes:    INT 61 is the default interrupt; the actual interrupt number can be
      obtained by calling INT 16/AH=FFh
    not all vendors include the Tseng TSR which supports these functions
SeeAlso: AX=0000h"OPTIMA",AX=0006h"OPTIMA",INT 16/AH=FFh"OPTIMA"
--------N-610008BX0002-----------------------
INT 61 - Banyan VINES - POST MESSAGE ON LOCAL DISPLAY
    AX = 0008h
    BX = 0002h
    CX = message display flags (see #1834)
    DS:DX -> ASCIZ string to display (only first 80 chars used)
Return: AX = status
        0000h successful
        000Bh message display function currently busy
        000Ch message queue full
Note:    queues up to three messages to be displayed on the bottom line
SeeAlso: AX=0008h/BX=0003h

Bitfields for VINES message display flags:
Bit(s)    Description    (Table 1834)
 0    message will remain on screen until user presses ^X
 1    ring bell after displaying message
 2    blink
--------N-610008BX0003-----------------------
INT 61 - Banyan VINES - INTERCEPT VINES 25th-LINE MESSAGES AT LOCAL PC
    AX = 0008h
    BX = 0003h
    DS:DX -> request block (see #1835)
Return: AX = status
        0000h successful
        0001h network software not installed or incompatible
Notes:    message handler should not call BIOS or DOS functions, and should
      either call next handler or simply return
    to stop intercepting messages, set prev and next request blocks to
      point at each other
SeeAlso: AX=0008h/BX=0002h

Format of VINES request block for 25-th line messages:
Offset    Size    Description    (Table 1835)
 00h    DWORD    pointer to user-written message handler
 04h    DWORD    pointer to next request block (filled in by VINES)
 08h    DWORD    pointer to previous request block (filled in by VINES)
 0Ch    DWORD    pointer to message storage area (filled by VINES) (see #1836)

Format of message storage area:
Offset    Size    Description    (Table 1836)
 00h 16 BYTEs    IPC port of message sender (see #1751)
 10h    BYTE    message flags
 11h    WORD    reserved
 13h    BYTE    length of message
 14h 80 BYTEs    message text
--------N-61000A-----------------------------
INT 61 - Banyan VINES - SECONDARY 3270 INTERFACE
    AX = 000Ah
Note:    either 3270/SNA or 3270/BSC interface will use AX=000Ah, depending on
      which is loaded second.  The first interface loaded will use AX=0002h
SeeAlso: INT 61/AX=0002h
--------N-6101-------------------------------
INT 61 - Banyan VINES - CHECK SERVICE
    AH = 01h
    AL = service ID (see #1837)
Return: AX = status
        0000h installed
        0001h not installed
        0002h invalid ID

(Table 1837)
Values for VINES service ID:
 01h    communications
 02h    primary 3270 emulation
 03h    async terminal emulation
 04h    file deflection
 07h    StreetTalk
 08h    environment
 0Ah    secondary 3270 emulation
 0Bh    semaphore service
 0Ch    3270 emulation active status
 0Dh    3270 keyboard interrupt simulator
--------N-6101--BX0000-----------------------
INT 61 u - PC/TCP kernel v2.1+ - "net_config" - CONFIGURE RUNNING KERNEL
    AH = 01h
    BX = 0000h
    DH = tag number
    DL = device number
    DS:SI -> buffer to send to kernel
    ES:DI -> integer containing size of buffer
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Notes:    there are a large number of tags available; the items returned
      all refer to local kernel configuration, and are not needed in
      normal use.
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=02"PC/TCP"
--------N-6102-------------------------------
INT 61 - Banyan VINES - GET REVISION NUMBER
    AH = 02h
    DS:DX -> 2-byte buffer for result
Return: AX = 0000h installed
        DS:DX buffer contains revision number as
        10000d * major_ver + 100d * minor_ver + patch_revision
--------N-6102--BX0000-----------------------
INT 61 u - PC/TCP kernel v2.1+ - "get_kernel_info" - GET MISCELLAN LOCAL INFO
    AH = 02h
    BX = 0000h
    DH = tag number
    DL = device number
    DS:SI -> buffer for result (up to 48 bytes for version <= 2.2)
    ES:DI -> integer containing size of buffer
Return: CF clear if successful
        Data loaded into specified buffer, and size value altered
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Notes:    there are a large number of tags available; the items returned
      all refer to local kernel configuration, and are not needed in
      normal use.
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=01h"PC/TCP"
--------N-6105-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_addr" - GET INTERNET ADDRESS OF NET DESCR
    AH = 05h
    BX = network descriptor
Return: CF clear if successful
        DX:AX = Internet address of ND
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Notes:    the installation check consists of testing for the signature "TCPTSR"
      three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=16h"PC/TCP"
SeeAlso: INT 63/AH=25h"BW-TCP"
--------N-6106-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_info" - GET INTERFACE STATISTICS
    AH = 06h
    BX = network descriptor (must be allocated and open)
    DS:SI -> 38-byte buffer for interface statistics (see #1838)
Return: CF clear if successful
        buffer filled
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Desc:    returns the statistics relevant to the particular network interface
       used by the specified network descriptor
Range:    INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=05h"PC/TCP"

Format of PC/TCP interface statistics:
Offset    Size    Description    (Table 1838)
 00h    WORD    interface class (e.g. 802.3)
 02h    WORD    type (manufacturer) of interface
 04h    WORD    interface number
 06h    DWORD    (big-endian) IP address of interface
 0Ah    DWORD    subnet mask
 0Eh    WORD    0001h if interface is up
 10h    DWORD    total packets received
 14h    DWORD    total packets sent
 18h    DWORD    receive errors
 1Ch    DWORD    send errors
 20h    WORD    length of local net address (e.g. 0006h for Ethernet)
 22h    DWORD    pointer to local net address
--------N-6107-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_globalize" - MAKE NET DESCRIPTOR GLOBAL
    AH = 07h
    BX = local network descriptor
Return: CF clear if successful
        AX = global network descriptor
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    the new network descriptor can be accessed from all processes and is
      independent of DOS
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 61/AH=29h
--------N-6108-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_release" - CLOSE A NETWORK DESCRIPTOR
    AH = 08h
    BX = network descriptor
Return: CF clear if successful
        AX = 0000h (BWPCTCP shim)
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Note:    the descriptor will be closed and resources released.  If a stream
      descriptor, the protocol (FIN etc) is completed unless the
      non-blocking option has been set.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=09h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-6109-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_releaseall" - CLOSE ALL NON-GLOBAL DESCRS
    AH = 09h
Return: CF clear
Range:    INT 20 to INT E0, selected by configuration
Notes:    this call performs function 08h on every non-global network descriptor.
      Global descriptors must be released individually.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-610A-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_send" - ???
    AH = 0Ah
    ???
Return: ???
Notes:    this function is described as "unused" in the v2.05 and v2.2
      documentation
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: AH=0Bh
--------N-610B-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_sendto" - ???
    AH = 0Bh
    ???
Return: ???
Range:    INT 20 to INT E0, selected by configuration
Notes:    this function is described as "unused" in the v2.05 and v2.2
      documentation
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: AH=0Ah
--------N-610C-------------------------------
INT 61 u - PC/TCP kernel v2.05+ - "net_stat" - GET CONNECTION STATISTICS
    AH = 0Ch
    BX = network descriptor or one of the following:
        FFFCh for kernel ICMP statistics
        FFFDh for kernel UDP statistics
        FFFEh for kernel IP statistics
        FFFFh for kernel TCP statistics
    DS:DX -> 64-byte buffer
Return: CF clear if successful
        buffer filled
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    the fields filled in for a network descriptor depend on the protocol
      family used by that descriptor's connection
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

Format of PC/TCP kernel TCP statistics:
Offset    Size    Description    (Table 1839)
 00h 16 BYTEs    unused
 10h    DWORD    bytes sent
 14h    DWORD    bytes received
 18h  8 BYTEs    unused
 20h    DWORD    packets sent
 24h    DWORD    packets received
 28h    DWORD    bad checksums
 2Ch    DWORD    count of window ignored by remote
 30h    DWORD    timeouts
 34h    DWORD    resets
 38h    DWORD    duplicate packets
 3Ch    DWORD    retransmits

Format of PC/TCP kernel IP statistics:
Offset    Size    Description    (Table 1840)
 00h  8 BYTEs    unused
 08h    DWORD    invalid IP header length errors
 0Ch    DWORD    protocol errors (unwanted packets)
 10h    DWORD    duplicate fragments received
 14h    DWORD    bad fragments received
 18h    DWORD    security errors
 1Ch    DWORD    count of bad IP addresses received
 20h    DWORD    packets sent
 24h    DWORD    packets received
 28h    DWORD    bad checksums received
 2Ch    DWORD    total IP protocol errors
 30h    DWORD    fragmentation errors
 34h    DWORD    IP packets discarded + bad security + bad fragments
 38h    DWORD    fragments received
 3Ch  4 BYTEs    unused

Format of PC/TCP kernel UDP statistics:
Offset    Size    Description    (Table 1841)
 00h 28 BYTEs    unused
 1Ch    DWORD    packets dropped for lack of buffers
 20h    DWORD    packets sent
 24h    DWORD    packets received
 28h    DWORD    bad checksums
 2Ch    DWORD    port not listening errors
 30h  4 BYTEs    unused
 34h    DWORD    truncated receives
 38h  8 BYTEs    unused

Format of PC/TCP kernel ICMP statistics:
Offset    Size    Description    (Table 1842)
 00h    DWORD    "TimeEx" sent
 04h    DWORD    "TimeEx" received
 08h    DWORD    "ParamProb" sent
 0Ch    DWORD    "ParamProb" received
 10h    DWORD    redirects received
 14h    DWORD    source quenches received
 18h    DWORD    ICMP Echo Requests ("ping") sent
 1Ch    DWORD    ICMP Echo Requests received
 20h    DWORD    packets sent
 24h    DWORD    packets received
 28h    DWORD    bad packets received
 2Ch    DWORD    "DestUn" received
 30h    DWORD    packet send errors
 34h    DWORD    "DestUn" sent
 38h    DWORD    ICMP Echo replies received
 3Ch    DWORD    ICMP Echo replies sent
--------N-610D-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "is_netnd" - CHECK IF NETWORK DESCRIPTOR VALID
    AH = 0Dh
    BX = possible network descriptor
Return: CF clear if valid
    CF set on error
        AX = error code (see INT 61"PC/TCP")
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=08h"PC/TCP"
SeeAlso: INT 61/AH=22h
--------N-610E-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_select" - DETECT READINESS OF NETWORK
    AH = 0Eh
    BX = maximum value of network descriptor for which to return info
    DS:DX -> 32-bit (max) array of bit flags for read readiness
    ES:DI -> 32-bit (max) array of bit flags for write readiness
Return: CF clear
Range:    INT 20 to INT E0, selected by configuration
Notes:    bits in the DS:DX buffer are set if the corresponding network
      descriptor may be read without blocking; bits in the ES:DI buffer
      are set if the corresponding network descriptor may be written
      without blocking.  This implies that the network descriptor has
      opened correctly and the protocol initialized.
    the installation check consists of testing for the signature "TCPTSR"
      three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-610F-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_netversion" - GET SOFTWARE VERSION
    AH = 0Fh
Return: CF clear
    AX = version (AH = major, AL = minor)
    BX = patch level
Notes:    patch levels are no longer used starting with version 2.10; instead,
      the minor version level is incremented.
    Beame&Whiteside's BWPCTCP v3.0a shim reports version 2.05, but does not
      set BX
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6110-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_shutdown" - UNINSTALL
    AH = 10h
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Note:    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6111-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "disable_async" - DISABLE ASYNCHRONOUS HANDLERS
    AH = 11h
Return: CF clear
    AX = previous state
        0000h async calls were already disabled
        else  async calls were enabled
SeeAlso: INT 61"PC/TCP",INT 61/AH=12h
--------N-6112-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "enable_async" - ENABLE ASYNCHRONOUS HANDLERS
    AH = 12h
Return: CF clear
    AX = previous state
        0000h async calls were disabled
        else  async calls were already enabled
SeeAlso: INT 61"PC/TCP",INT 61/AH=11h
--------N-6113-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_connect" - OPEN A NETWORK CONNECTION
    AH = 13h
    BX = network descriptor (FFFFh for automatic net_getdesc)
    DX = protocol (see #1843)
    DS:SI -> buffer for "addr" structure (see #1844)
Return: CF clear if successful
        AX = network descriptor used or allocated
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    resets the connection with AH=19h in various cases
    will wait for protocol on stream connections unless non-blocking was
      set with AH=20h
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=18h,INT 61/AH=23h
SeeAlso: INT 63/AH=14h"BW-TCP"

(Table 1843)
Values for PC/TCP protocol:
 0001h    raw net (undocumented)
 0002h    raw IP
 0003h    datagram (UDP)
 0004h    stream (TCP)
 0005h    raw ICMP

Format of structure "addr":
Offset    Size    Description    (Table 1844)
 00h    DWORD    Internet address (network order)
 04h    WORD    remote socket number (network order)
 06h    WORD    local socket number (network order) 0000h means "you choose"
 08h    BYTE    protocol (see #1843)
--------N-6114-------------------------------
INT 61 Ou - PC/TCP kernel v2.05 - "net_recv" - NO LONGER SUPPORTED
    AH = 14h
    BX = network descriptor
Return: CF set
        AX = 0018h (see INT 61"PC/TCP")
Notes:    displays error message "Illegal system call!  Please upgrade your
      PCserver software" to standard output
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=0Ah,INT 61/AH=15h
--------N-6115-------------------------------
INT 61 - PC/TCP kernel v2.05 - "net_recvfrom" - ???
    AH = 15h
    ???
Return: ???
Notes:    this function is described as "unused" in the v2.2 documentation
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61/AH=0Bh,INT 61/AH=14h
--------N-6116-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_peer" - GET DATA ON REMOTE PEER
    AH = 16h
    BX = network descriptor
    DS:DX -> 9-byte buffer for "addr" structure (see #1844)
Return: CF clear if successful
        buffer filled
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6117-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_reconfig" - RE-READ KERNEL CONFIGURATION
    AH = 17h
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    this routine is deprecated in v2.1+ and will eventually be withdrawn;
      in v2.1+, this function calls AH=01h which should be used instead
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=01h"PC/TCP"
--------N-6118-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_eof" - CLOSE TRANSMIT SIDE OF CONNECTION
    AH = 18h
    BX = network descriptor
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    a TCP "FIN" command is sent and no further data may be transmitted,
      although the connection remains open
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h"PC/TCP"
SeeAlso: INT 63/AH=0Eh"BW-TCP"
--------N-6119-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_abort" - RESET A NETWORK CONNECTION
    AH = 19h
    BX = network descriptor
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Desc:    immediately destroys the specified connection
Note:    send a TCP "RST" command if a stream connection is open
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=24h
--------N-611A-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_write" - WRITE TO THE NETWORK
    AH = 1Ah
    BX = network descriptor
    CX = number of bytes to transmit (0000h allowed)
    DX = send options (see #1845)
    DS:SI -> data to be written
Return: CF clear if successful
        AX = number of bytes actually written
        DX = ???
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20h to INT E0h, selected by configuration
Notes:    the installation check consists of testing for the signature "TCPTSR"
      three bytes beyond the start of the interrupt handler
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Bh,INT 61/AH=1Ch
SeeAlso: INT 63/AH=19h"BW-TCP",INT 63/AH=1Bh"BW-TCP"

Bitfields for PC/TCP send options:
Bit(s)    Description    (Table 1845)
 0    signal "URG"ent data
 3    attempt rerouting on non-stream calls if first attempt fails
 4    send data with PUSH flag (no override of Nagle) (see option 0Ch)
 5    fail rather than truncating datagram
 6    fail rather than blocking
 7    broadcast packet
--------N-611B-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_read" - READ FROM THE NETWORK
    AH = 1Bh
    BX = network descriptor
    CX = maximum number of bytes to read
    DX = receive options (see #1846)
    DS:SI -> buffer for data
    ES:DI -> "addr" structure (see #1844) for remote from which to read
        0000h:0000h for any
Return: CF clear if successful
        AX = number of bytes actually read
        DX = ???
    CF set on error
        AX = error code (see INT 61"PC/TCP")
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Ah,INT 61/AH=1Dh

Bitfields for PC/TCP receive options:
Bit(s)    Description    (Table 1846)
 1    do not remove data from queue, just copy it
 2    do not copy data, just remove it from queue
 5    fail if datagram would be truncated
 6    do not block, return error if no data available
Note:    special case for UDP: if both 1 and 2 set, return number of datagrams
--------N-611C-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_writeto" - WRITE A DATAGRAM
    AH = 1Ch
    BX = network descriptor
    CX = number of bytes to transmit (0000h allowed)
    DX = send options (see #1845)
    DS:SI -> data to be written
    ES:DI -> "addr" structure (see #1844)
Return: CF clear if successful
        AX = number of bytes actually written
        DX = ???
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function differs from AH=1Ah in that the address and socket
      numbers can be overridden
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Ah,INT 61/AH=1Dh
SeeAlso: INT 63/AH=21h"BW-TCP"
--------N-611D-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_readfrom" - READ A DATAGRAM
    AH = 1Dh
    BX = network descriptor
    CX = maximum number of bytes to read
    DX = receive options (see #1845)
    DS:SI -> buffer for received data
    ES:DI -> 9-byte buffer containing "addr" structure (see #1844)
Return: CF clear if successful
        AX = number of bytes read
        DX = ???
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    this function can read from any host or a designated host depending
      on settings in the "addr" structure
    only for use with datagram or Raw descriptors
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=1Bh,INT 61/AH=1Ch
--------N-611E-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_flush" - FLUSH PENDING DATA
    AH = 1Eh
    BX = network descriptor
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Notes:    bufferred data is transmitted immediately, overriding Nagle's algorithm
      if necessary
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-611F-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_asynch" - SET UP ASYNCHRONOUS CALL-BACK
    AH = 1Fh
    BX = network descriptor
    CX = event type (see #1847)
    DS:SI -> event handler routine (see #1848)
    ES:DI = 32-bit hint passed to handler
Return: CF clear if successful
        DS:DX -> previous handler
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    ICMP messages do not trigger events on stream connections
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

(Table 1847)
Values for PC/TCP event type:
 00h    alarm
 01h    open (successfully opened stream connection)
 02h    receive (data available)
 03h    transmit (ACK received on stream connection)
 04h    transmit flush???
 05h    foreign close (remote host closed data connection)
 06h    close (local host closed connection and protocol is complete)
 07h    error (error code passed to handler as arg)

(Table 1848)
Values PC/TCP user event handler is called with:
    BX = network descriptor
    CX = event type (see #1847)
    DS:DX -> arg
    ES:DI = 32-bit hint value
    STACK:    small stack, possibly the DOS stack
--------N-6120-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "set_option" - SET AN OPTION ON A DESCRIPTOR
    AH = 20h
    BX = network descriptor
    CX = length of buffer (usually 04h)
    DS:DX -> buffer containing option
    SI = (ignored by v2.2-)
    DI = option to set (see #1849)
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    Beame&Whiteside's BWPCTCP shim only supports options 01h and 0Bh; all
      others return CF clear
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=21h

(Table 1849)
Values for PC/TCP option to get or set:
 01h    set non-blocking mode if non-zero
 02h    timeout of call in milliseconds
 03h    user-defined 4-byte magic cookie (not used by kernel)
 04h    TCP window or UDP buffer count (WORD, unsigned)
 06h    do TCP keep-alives if non-zero
 09h    (v2.1+) set IP precedence
 0Ah    (v2.1+) set IP type of service
 0Bh    use a privileged port if port = 0
 0Ch    turn off TCP PUSH bit and don't flush buffer every write (see AH=1Ah)
Note:    use "C" true or false values for boolean options
--------N-6121-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "get_option" - GET OPTIONS APPLIED TO NET DESCR
    AH = 21h
    BX = network descriptor
    CX = length of buffer
    DS:DX -> buffer for return values
    SI = 0004h (ignored by v2.2-)
    DI = option (see #1849)
Return: CF clear if successful
        DS:DX -> value (usually 32 bits) returned by selected option
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=20h
--------N-6122-------------------------------
INT 61 u - PC/TCP kernel v2.05+ - "net_getdesc" - ALLOCATE NETWORK DESCRIPTOR
    AH = 22h
Return: CF clear if successful
        AX = network descriptor
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    the descriptor will be an integer in the range 00h-1Fh, and a DOS call
      is made to allocate this as a file descriptor.  Hence a number may
      not refer to a PC/TCP network descriptor and a DOS file handle
      simultaneously.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h,INT 61/AH=29h
--------N-6123-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_listen" - LISTEN FOR INCOMING CONNECTIONS
    AH = 23h
    BX = network descriptor or FFFFh to allocate descriptor
    DX = type of service
    DS:SI -> "addr" structure (see #1844)
Return: CF clear if successful
        AX = network descriptor
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    type of service and "addr" structure are as for AH=13h
    any of the address structure can be zero; normally local socket number
      is filled in prior to call
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=13h
SeeAlso: INT 63/AH=12h"BW-TCP"
--------N-6124-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_abortall" - RESET ALL NETWORK CONNECTIONS
    AH = 24h
Return: always successful
Note:    performs "net_abort" (AH=19h) on all open non-global descriptors
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=19h
--------N-6125-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_res_name" - GET HOST NAME GIVEN ADDRESS
    AH = 25h
    DX,BX = IP address in network order
    CX = length of buffer for name
    DS:SI -> buffer for host name
Return: CF clear if successful
       buffer filled with ASCIZ host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function will use the host table and or DNS to resolve the
      address, depending on kernel configuration.  Use this call for the
      normal gethostbyaddr function.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=26h,INT 61/AH=27h
--------N-6126-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_htable" - GET HOST NAME FROM LOCAL TABLE
    AH = 26h
    DX,BX = IP address in network order
    CX = length of buffer
    DS:SI -> buffer for host name
Return: CF clear if successful
        buffer filled with ASCIZ host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    normally one would use AH=25h instead of this function
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=25h,INT 61/AH=27h
--------N-6127-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "ad_domain" - GET HOST NAME FROM DNS
    AH = 27h
    DX,BX = IP address in network order
    CX = length of buffer
    DS:SI -> buffer for host name
Return: CF clear if successful
        buffer filled with ASCIZ host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    normally one would use AH=25h instead of this function
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=25h,INT 61/AH=26h
--------N-6128-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_swap" - EXCHANGE TWO NETWORK DESCRIPTORS
    AH = 28h
    BX = network descriptor 1
    CX = network descriptor 2
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    the two descriptors will exchange places; both must be local or both
      global
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6129-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "net_getglobdesc" - ALLOCATE GLOBAL DESCRIPTOR
    AH = 29h
Return: CF clear if successful
        AX = network descriptor
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    use this function rather than AH=22h to avoid a DOS call by the PC/TCP
      kernel; the returned descriptor will be >= 40h and cannot be used
      with "net_select" (AH=0Eh)
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=07h"PC/TCP"
SeeAlso: INT 61/AH=22h
--------N-612A-------------------------------
INT 61 - PC/TCP kernel v2.05+ - GET CONFIGURATION INFORMATION
    AH = 2Ah
    DS:SI -> 26-byte buffer for configuration information (see #1850)
Return: CF clear
    AX = 0000h
    buffer filled
Notes:    size of buffer may vary with kernel version; 26 bytes is the size for
      versions 2.05 through 2.2
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"

Format of PC/TCP configuration information:
Offset    Size    Description    (Table 1850)
 00h    BYTE    maximum TCP connections available
 01h    BYTE    maximum UDP connections available
 02h    BYTE    maximum IP connections available
 03h    BYTE    maximum Raw Net connections available
 04h    BYTE    number of TCP connections currently in use
 05h    BYTE    number of UDP connections currently in use
 06h    BYTE    number of IP connections currently in use
 07h    BYTE    number of Raw Net connections currently in use
 08h    WORD    number of local network descriptors active
 0Ah    WORD    number of global network descriptors active
 0Ch    BYTE    maximum header size on network
 0Dh    BYTE    maximum trailer size on network
 0Eh    WORD    size of large packet buffer
 10h    WORD    number of network interfaces attached
 12h    DWORD    milliseconds since kernel started
 16h    DWORD    IP broadcast address
--------N-612B-------------------------------
INT 61 - PC/TCP kernel v2.02+ - "net_alarm" - SET TIMED ASYNCHRONOUS EVENT
    AH = 2Bh
    BX = network descriptor
    CX,DX = time before alarm in milliseconds
    DS:SI -> handler which will receive call (see INT 61/AH=1Fh)
    ES:DI = 32-bit cookie passed to handler
Return: CF clear if successful
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Notes:    this function will cause a NET_AS_ALARM to be generated; it is intended
      for TSRs, etc. to regain control periodically
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-6130-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "icmp_ping" - SEND ICMP ECHO REQUEST (PING)
    AH = 30h
    BX,DX = IP address of host
    CX = length of data to send
Return: CF clear if successful (i.e. reply received)
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP"
--------N-61---------------------------------
INT 61 u - PC/TCP kernel v2.05 - NOP for SLIP kernel
    AH = function
        31h "net_add_route"
        32h "net_del_route"
        33h "net_dump_routes"
Notes:    these functions are described as "unused" in the v2.2 documentation
    router configuration can be altered using INT 61/AH=01h
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
--------N-6134-------------------------------
INT 61 U - PC/TCP kernel v2.1+ - "icmp_destun" - ???
    AH = 34h
    ???
Return: ???
Notes:    this function is described as "reserved" in the v2.2 documentation
    this function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim
--------N-6150-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_prs_addr" - TRANSLATE NUMERICAL IP ADDRESS
    AH = 50h
    DS:DX -> ASCIZ IP address as "dotted quad" (max 127 chars)
Return: CF clear if successful
        DX:AX -> IP address
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6151-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_htable" - RESOLVE NAME USING HOST TABLE
    AH = 51h
    CX = size of destination buffer
    DS:DX -> ASCIZ host name (max 127 chars)
    ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
        DX:AX -> IP address of host
        destination buffer filled with canonical host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function calls DOS, and can fail if the DOS call fails
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6152-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_domain" - RESOLVE NAME USING DNS
    AH = 52h
    CX = size of destination buffer
    DS:DX -> ASCIZ host name (max 127 chars)
    ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
        DX:AX -> IP address of host
        destination buffer filled with canonical host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function will poll all configured domain name servers if necessary
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6153-------------------------------
INT 61 - PC/TCP kernel v2.05- - "nm_ien116" - RESOLVE HOST NAME USING IEN116
    AH = 53h
    DS:DX -> ASCIZ name to be resolved (max 127 chars)
Return: CF clear if successful
        DX:AX -> IP address of host
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Range:    INT 20 to INT E0, selected by configuration
Note:    this function is not supported by v2.10+
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=54h
--------N-6154-------------------------------
INT 61 - PC/TCP kernel v2.05+ - "nm_res_name" - RESOLVE HOST NAME
    AH = 54h
    CX = size of destination buffer
    DS:DX -> ASCIZ host name (max 127 chars)
    ES:DI -> destination buffer or 0000h:0000h
Return: CF clear if successful
        DX:AX -> IP address of host
        destination buffer filled with canonical host name
    CF set on error
        AX = error code (see INT 61"PC/TCP")
Note:    this function uses all configured methods in turn to resolve the
      name (numerical, then host table, then DNS, then IEN116)
BUG:    the SLIP kernel for v2.05 bounds-checks the wrong register, so values
      greater than 54h in AH may crash the system.    Other kernels may have
      this bug as well; it has been fixed in the v2.2 SLIPDRV kernel.
SeeAlso: INT 61"PC/TCP",INT 61/AH=00h"PC/TCP",INT 61/AH=50h,INT 61/AH=51h
SeeAlso: INT 61/AH=52h,INT 61/AH=53h
--------*-62---------------------------------
INT 62 - reserved for user interrupt
--------d-62---------------------------------
INT 62 - Adaptec and OMTI controllers - DRIVE 0 DATA
Notes:    this vector stores the third four bytes of the parameter table for
      hard disk 0
SeeAlso: INT 60"Adaptec",INT 61"Adaptec",INT 63"Adaptec"
--------b-62---------------------------------
INT 62 - HP 95LX - USED BY CALCULATOR
SeeAlso: INT 60"HP 95LX"
----------62---------------------------------
INT 62 - MS SQL Server/Sybase DBLIBRARY interface - ???
    AH = function (00h to 07h)
    CX = FFFEh
    DX = FFFFh
    ???
Return: ???
Note:    the installation check consists of testing for the string "DBLIBRARY"
      2 bytes past the interrupt handler
SeeAlso: AH=08h"SQL"
Index:    installation check;MS SQL Server|installation check;Sybase DBLIBRARY
--------N-6200-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET PHYSICAL HARDWARE ADDRESS
    AH = 00h
    DS:DX -> 6-byte buffer for address
Return: AX = length of hardware address???
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=01h"ETHDEV",AH=04h"ETHDEV",AH=09h"ETHDEV",AH=0Eh"ETHDEV"
SeeAlso: AH=14h"ETHDEV",AH=18h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------V-620000-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCATE" - CREATE VIRTUAL VIDEO PAGE
    AX = 0000h
    BX = page number (0000h-003Fh)
Return: AX = status (0000h,0001h,0007h,0008h) (see #1851)
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
Notes:    For FGDRIVER v1.10, this function was "FG_GETMODE" (see AX=003Fh);
      "FG_ALLOCATE" was AX=0042h
    The amount of memory required by the virtual video page depends on the
      current video mode
    The installation check consists of testing for the signature "FG" ten
      bytes beyond the start of the interrupt handler
SeeAlso: AX=0001h,AX=0002h,AX=0003h,AX=002Eh
Index:    installation check;Fastgraph/Light

(Table 1851)
Values for FGDRIVER status:
 0000h    successful
 0001h    specified page is a physical or logical page
 0007h    virtual page created/released, but memory control blocks corrupted
 0008h    not enough memory
 0009h    attempt to free a page which was never created
 FFFCh    insufficient memory
 FFFDh    page already created, or exists as physical or virtual page
 FFFEh    invalid page number
 FFFFh    memory manager not initialized
--------V-620001-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCCMS" - CREATE LOGICAL VIDEO PAGE (CONVMEM)
    AX = 0001h
    BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #1851)
Notes:    For FGDRIVER v1.10, this function was "FG_SETMODE" (see AX=0093h);
      "FG_ALLOCCMS" was AX=009Dh
    The only operation which is allowed on logical pages is "FG_COPYPAGE"
      (see AX=0012h)
SeeAlso: AX=0000h,AX=0002h,AX=0003h,AX=0012h,AX=002Eh
--------V-620002-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCEMS" - CREATE LOGICAL VIDEO PAGE (EMS)
    AX = 0002h
    BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #1851)
Notes:    For FGDRIVER v1.10, this function was "FG_TESTMODE" (see AX=00A7h);
      "FG_ALLOCEMS" was AX=009Eh
    You must first call "FG_INITEMS" (see AX=004Ch) before using this
      function
    The only operation which is allowed on logical pages is "FG_COPYPAGE"
      (see AX=0012h)
SeeAlso: AX=0000h,AX=0001h,AX=0003h,AX=0012h,AX=002Eh,AX=004Ch
--------V-620003-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ALLOCXMS" - CREATE LOGICAL VIDEO PAGE (XMS)
    AX = 0003h
    BX = page number (0001h-003Fh)
Return: AX = status (0000h,FFFCh,FFFDh,FFFEh) (see #1851)
Notes:    For FGDRIVER v1.10, this function was "FG_BESTMODE" (see AX=0005h),
      and "FG_ALLOCXMS" was AX=009Fh
    You must first call "FG_INITXMS" (see AX=004Eh) before using this
      function
    The only operation which is allowed on logical pages is "FG_COPYPAGE"
      (see AX=0012h)
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=0012h,AX=002Eh,AX=004Eh
--------V-620004-----------------------------
INT 62 u - FGDRIVER v1.10,3.03 - "FG_AUTOMODE" - GET VIDEO MODE W/MOST FEATURES
    AX = 0004h
Return: AX = proposed video mode number (see #1865 at AX=0093h)
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
SeeAlso: AX=0005h,AX=003Fh,AX=0093h,AX=00A1h,AX=00A7h
--------V-620005-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BESTMODE" - GET BEST VIDEO MODE GIVEN RESOLUTN
    AX = 0005h
    BX = horizontal resolution
    CX = vertical resolution
    DX = number of video pages required (both physical and virtual)
Return: AX = proposed video mode number or FFFFh if no matching video mode
Notes:    For FGDRIVER v1.10, this function was "FG_EGACHECK" (see AX=0023h);
       "FG_BESTMODE" was AX=0003h
    You must first call "FG_SVGAINIT" (see AX=00A1h) to get SVGA video
      modes
SeeAlso: AX=0004h,AX=003Fh,AX=0093h,AX=00A1h,AX=00A7h
--------V-620006-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOX" - DRAW UNFILLED RECTANGLE
    AX = 0006h
    BX = left column
    CX = right column
    DX = top row
    SI = bottom row
Notes:    For FGDRIVER v1.10, this function was "FG_RESET" (see AX=0081h);
      "FG_BOX" was AX=00A2h
    The rectangle is drawn in screen space, respecting the clipping region,
      with edges of the width specified with "FG_BOXDEPTH" (see AX=0007h)
      (default = 1 is set by "FG_SETMODE")
    This function has no effect in text modes
SeeAlso: AX=0007h,AX=0008h,AX=000Ch,AX=0014h,AX=001Bh,AX=0024h,AX=0076h
--------V-620007-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOXDEPTH" - SET RECTANGLE BORDER WIDTH
    AX = 0007h
    BX = width of left and right edges in pixels (> 0)
    CX = width of top and bottom edges in pixels (> 0)
Note:    For FGDRIVER v1.10, this function was "FG_CURSOR" (see AX=0013h);
      "FG_BOXDEPTH" was AX=00A3h
SeeAlso: AX=0006h,AX=0008h
--------V-620008-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BOXX" - XOR HOLLOW RECTANGLE
    AX = 0008h
    BX = left column
    CX = right column
    DX = top row
    SI = bottom row
Notes:    For FGDRIVER v1.10, this function was unused and "FG_BOXX" did not
      exist yet
    The rectangle is XORed into screen space, respecting the clipping
      region, with edges of the width specified with "FG_BOXDEPTH"
      (see AX=0007h) (default = 1 is set by "FG_SETMODE")
    This function has no effect in text modes
SeeAlso: AX=0006h,AX=0007h,AX=001Fh,AX=0020h,AX=0077h
--------V-620009-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_BUTTON" - GET JOYSTICK BUTTON STATE
    AX = 0009h
    BX = joystick number (0001h or 0002h)
Return: AX = button states
        bit 0: top button pressed
        bit 1: bottom button pressed
Note:    For FGDRIVER v1.10, this function was unused; "FG_BUTTON" was AX=0078h
SeeAlso: AX=0044h,AX=0046h,AX=004Dh,AX=0050h,AX=0061h
--------V-62000A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CAPSLOCK" - GET STATE OF CAPSLOCK KEY
    AX = 000Ah
Return: AX = CapsLock state (0000h off, 0001h on)
Note:    For FGDRIVER v1.10, this function was "FG_GETMAXX" (see AX=003Dh);
      "FG_CAPSLOCK" was AX=0070h
SeeAlso: AX=006Ch,AX=0088h,AX=008Bh,AX=0094h
--------V-62000B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CHGATTR" - APPLY CURRENT TEXT ATTRIB TO CHARS
    AX = 000Bh
    BX = number of characters to recolor
Notes:    For FGDRIVER v1.10, this function was "FG_GETMAXY" (see AX=003Eh);
      "FG_CHGATTR" was AX=0035h
    This call is ignored in graphics modes
    Starting at the current text cursor position, the specified number of
      characters have their attributes to the current text attribute
SeeAlso: AX=000Ch,AX=0030h,AX=008Ah
--------V-62000C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CHGTEXT" - DISPLAY STRING AT CURSOR POSITION
    AX = 000Ch
    CX = length of string
    ES:BX -> string to be displayed
Return: text cursor updated
Notes:    For FGDRIVER v1.10, this function was "FG_XALPHA" (see AX=00B0h);
      "FG_CHGTEXT" was AX=0036h
    This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=007Ch
--------V-62000D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CIRCLE" - DRAW UNFILLED CIRCLE
    AX = 000Dh
    BX = radius in horizontal screen space units (> 0)
Notes:    For FGDRIVER v1.10, this function was "FG_YALPHA" (see AX=00B2h);
      "FG_CIRCLE" was AX=0030h
    The circle is drawn in screen space, centered at the current graphics
      cursor position
    This call is ignored in text modes
SeeAlso: AX=0006h,AX=0008h,AX=000Eh,AX=0024h,AX=0079h
--------V-62000E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CIRCLEF" - DRAW FILLED CIRCLE
    AX = 000Eh
    BX = radius in horizontal screen space units (> 0)
Notes:    For FGDRIVER v1.10, this function was "FG_XCONVERT" (see AX=00B1h);
      "FG_CIRCLEF" did not exist yet
SeeAlso: AX=0008h,AX=000Dh,AX=0025h,AX=0078h
--------V-62000F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLIPMASK" - DISPLAY CLIPPED IMAGE (MASKING MAP)
    AX = 000Fh
    ES:BX -> array containing image stored as a masking map (see #1852)
    CX = number of pixel runs in masking map
    DX = width of masking map in pixels
Notes:    For FGDRIVER v1.10, this function was "FG_YCONVERT" (see AX=00B3h);
       "FG_CLIPMASK" was AX=0052h
    This call is ignored in text modes and in native EGA and VGA graphics
      modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
SeeAlso: AX=0010h,AX=001Dh,AX=002Ah,AX=0086h,AX=008Ch,AX=00A5h
--------V-620010-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLPIMAGE" - DISPLAY CLIPPED IMAGE (BITMAP)
    AX = 0010h
    ES:BX -> mode-specific bitmap
    CX = width of bit map in bytes
    DX = height of bit map in pixel rows
Notes:    For FGDRIVER v1.10, this function was "FG_GETLINES" (see AX=003Bh);
      "FG_CLPIMAGE" was AX=004Ah
    This call is ignored in text modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
    The current clipping region is used, extended to a byte boundary
SeeAlso: AX=000Fh,AX=0022h,AX=002Ch,AX=0038h,AX=0085h,AX=008Ch,AX=009Ah
--------V-620011-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CLPRECT" - DRAW FILLED RECTANGLE IN SCREEN SPCE
    AX = 0011h
    BX = screen space column of left edge
    CX = screen space column of right edge
    DX = screen space row of top edge
    SI = screen space row of bottom edge
Notes:    For FGDRIVER v1.10, this function was "FG_SETLINES" (see AX=0092h);
      "FG_CLPRECT" was AX=002Bh
    This call is ignored in text modes
SeeAlso: AX=0006h,AX=000Fh,AX=0010h,AX=0021h,AX=0080h,AX=008Ch
--------V-620012-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_COPYPAGE" - TRANSFER VIDEO PAGE CONTENTS
    AX = 0012h
    BX = source page number (0000h-003Fh)
    CX = destination page number (0000h-003Fh)
Notes:    For FGDRIVER v1.10, this function was unused;"FG_COPYPAGE" was AX=005Fh
    If both source and destination pages are logical pages, they must both
      be located in the same type (conventional, EMS, XMS) of memory
SeeAlso: AX=0083h,AX=0087h,AX=00A6h,AX=00A9h
--------V-620013-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_CURSOR" - SPECIFY WHETHER TEXT CURSR IS VISIBLE
    AX = 0013h
    BX = new state (0000h invisible, 0001h visible)
Notes:    For FGDRIVER v1.10, this function was unused; "FG_CURSOR" was AX=0007h
    This call is ignored in text modes
SeeAlso: AX=000Ch,AX=0045h,AX=0047h,AX=0055h,AX=005Fh,AX=0063h,AX=0068h
SeeAlso: AX=00AFh
--------V-620014-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DASH" - DRAW DASHED LINE TO ABSOLUTE POSITION
    AX = 0014h
    BX = endpoint column
    CX = endpoint row
    DX = dash pattern (set bits cause drawn pixels)
Notes:    For FGDRIVER v1.10, this function was "FG_DEFCOLOR" (see AX=0016h);
      "FG_DASH" was AX=0027h
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=0015h,AX=001Bh,AX=0076h
--------V-620015-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DASHREL" - DRAW DASHED LINE TO RELATVE POSITION
    AX = 0015h
    BX = endpoint column offset
    CX = endpoint row offset
    DX = dash pattern (set bits cause drawn pixels)
Notes:    For FGDRIVER v1.10, this function was "FG_GETCOLOR" (see AX=0034h);
      "FG_DASHREL" was AX=0028h
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=0014h,AX=001Ch,AX=0076h
--------V-620016-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DEFCOLOR" - ASSIGN COLOR VALUE TO COLOR INDEX
    AX = 0016h
    BX = color index (0000h-00FFh)
    CX = new color value (0 to maximum color value for current video mode)
Notes:    For FGDRIVER v1.10, this function was "FG_GETINDEX" (see AX=0039h);
      "FG_DEFCOLOR" was AX=0014h
    This call is ignored in text modes and 256-color graphics modes
SeeAlso: AX=0034h,AX=0039h,AX=008Dh
--------V-620017-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DEFPAGES" - DEF SRC/DEST PAGES FOR BLOCK XFERS
    AX = 0017h
    BX = source page
    CX = destination page
Desc:    specify the source and destination SVGA banks for block transfers on
      extended video pages
Notes:    For FGDRIVER v1.10, this function was "FG_PALETTE" (see AX=006Fh);
      "FG_DEFPAGES" did not exist yet
    This function is ignored if the video controller does not support
      extended pages or the current video mode does not allow them
SeeAlso: AX=0012h,AX=00A9h
--------V-620018-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPFILE" - DISPLAY STORED IMAGE
    AX = 0018h
    ES:BX -> ASCIZ filename
    CX = image width in pixels (> 0)
    DX = image format
        0000h Fastgraph standard pixel run format
        0001h packed pixel run format
Notes:    For FGDRIVER v1.10, this function was "FG_PALETTES" (see AX=0070h);
      "FG_DISPFILE" was AX=004Fh
    This call is ignored in text modes
    The image is displayed with its lower left corner at the current
      graphics cursor position
SeeAlso: AX=0019h,AX=001Ah,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620019-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPLAY" - DISPLAY IMAGE (STD PIXEL RUN FORMAT)
    AX = 0019h
    ES:BX -> pixel run map (pairs of bytes: color index, count)
    CX = number of pixel runs to display
    DX = width of image in pixels (> 0)
Notes:    For FGDRIVER v1.10, this function was "FG_SETATTR" (see AX=008Ah);
      "FG_DISPLAY" was AX=004Dh
    This call is ignored in text modes
    The image is displayed with its lower left corner at the current
      graphics cursor position
SeeAlso: AX=0018h,AX=001Ah,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62001A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DISPLAYP" - DISPLAY IMAGE (PACKED PIXEL RUNS)
    AX = 001Ah
    ES:BX -> pixel run map (trios of bytes: colors, count1, count2; colors
          contains the color for the first run in its high nybble and
          the color for the second run in its low nybble)
    CX = number of pixel runs to display
    DX = width of image in pixels (> 0)
Notes:    For FGDRIVER v1.10, this function was "FG_SETCOLOR" (see AX=008Dh);
      "FG_DISPLAYP" was AX=004Eh
    This call is ignored in text modes
    The image is displayed with its lower left corner at the current
      graphics cursor position
SeeAlso: AX=0018h,AX=0019h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62001B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAW" - DRAW SOLID LINE TO ABSOLUTE POSITION
    AX = 001Bh
    BX = endpoint column
    CX = endpoint row
Notes:    For FGDRIVER v1.10, this function was "FG_SETRGB" (see AX=0096h);
      "FG_DRAW" was AX=0025h
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=0014h,AX=001Eh,AX=001Fh,AX=0024h,AX=0076h,AX=0077h
--------V-62001C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWMAP" - DISPLAY MODE-INDEPENDENT BIT MAP
    AX = 001Ch
    ES:BX -> bitmap (each set bit is pixel drawn in current color)
    CX = width of bitmap in bytes
    DX = height of bitmap in pixel rows
Note:    For FGDRIVER v1.10, this function was "FG_GETRGB" (see AX=0042h);
      "FG_DRAWMAP" was AX=0047h
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=007Eh,AX=0085h
--------V-62001D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWMASK" - DISPLAY IMAGE (MASKING MAP)
    AX = 001Dh
    ES:BX -> array containing image stored as a masking map (see #1852)
    CX = number of pixel runs in masking map
    DX = width of masking map in pixels
Notes:    For FGDRIVER v1.10, this function was "FG_MAPRGB" (see AX=005Ah);
      "FG_DRAWMASK" was AX=0051h
    This call is ignored in text modes and in native EGA and VGA graphics
      modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=0086h,AX=008Ch

Format of FGDRIVER masking map:
Offset    Size    Description    (Table 1852)
 00h    BYTE    length of first "protect" run (pixels remain unchanged)
 01h    BYTE    length of first "zero" run (pixels set to background color)
 02h    BYTE    length of second "protect" run
 03h    BYTE    length of second "zero" run
    ...
--------V-62001E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWREL" - DRAW SOLID LINE TO RELATIVE POSITION
    AX = 001Eh
    BX = endpoint column offset
    CX = endpoint row offset
Notes:    For FGDRIVER v1.10, this function was "FG_ERASE" (see AX=0026h);
      "FG_DRAWREL" was AX=0026h
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=0006h,AX=000Dh,AX=001Bh,AX=001Fh,AX=0024h,AX=0076h
--------V-62001F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWRELX" - XOR SOLID LINE TO RELATIVE POSITION
    AX = 001Fh
    BX = endpoint column offset
    CX = endpoint row offset
Desc:    draw a solid line, XORing each pixel onto the screen
Notes:    For FGDRIVER v1.10, this function was "FG_POINT" (see AX=0076h);
      "FG_DRAWRELX" did not exist yet
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=0006h,AX=000Dh,AX=001Bh,AX=001Eh,AX=0024h,AX=0077h
--------V-620020-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRAWX" - XOR SOLID LINE TO ABSOLUTE POSITION
    AX = 0020h
    BX = endpoint column
    CX = endpoint row
Desc:    draw a solid line, XORing each pixel onto the screen
Notes:    For FGDRIVER v1.10, this function was "FG_GETPIXEL" (see AX=0041h);
      "FG_DRAWX" did not exist yet
    This call is ignored in text modes
    The starting point is the current graphics cursor position; the cursor
      position is updated
SeeAlso: AX=001Bh,AX=001Fh,AX=0076h
--------V-620021-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRECT" - DRAW DITHERED RECTANGLE IN SCRN SPACE
    AX = 0021h
    BX = screen space column of left edge
    CX = screen space column of right edge
    DX = screen space row of top edge
    SI = screen space row of bottom edge
    ES:DI -> dithering matrix (video-mode dependent)
Notes:    For FGDRIVER v1.10, this function was "FG_GETXPOS" (see AX=0045h);
      "FG_DRECT" was AX=002Ch
    This call is ignored in text modes
SeeAlso: AX=0006h,AX=0008h,AX=0011h,AX=0031h,AX=0072h,AX=0080h
--------V-620022-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_DRWIMAGE" - DISPLAY BITMAPPED IMAGE
    AX = 0022h
    ES:BX -> video mode-specific bitmap
    CX = width of bitmap in bytes
    DX = height of bitmap in pixel rows
Notes:    For FGDRIVER v1.10, this function was "FG_GETYPOS" (see AX=0047h);
      "FG_DRWIMAGE" was AX=0049h
    The image will be drawn with its lower left corner at the current
      cursor position (either text or graphics)
SeeAlso: AX=0010h,AX=002Ch,AX=0038h,AX=007Eh,AX=0085h
--------V-620023-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_EGACHECK" - GET INFO ABOUT ACTIVE EGA DISPLAY
    AX = 0023h
Return: AX = number of 64K banks of video memory, or 0000h if no EGA or EGA
          without an Enhanced Color Display
Note:    For FGDRIVER v1.10, this function was "FG_MOVE" (see AX=0068h);
      "FG_EGACHECK" was AX=0005h
SeeAlso: AX=00A2h
--------V-620024-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ELLIPSE" - DRAW UNFILLED ELLIPSE IN SCRN SPACE
    AX = 0024h
    BX = horizontal semi-axis length in screen space units
    CX = vertical semi-axis length in screen space units
Notes:    For FGDRIVER v1.10, this function was "FG_MOVEREL" (see AX=0069h);
      "FG_ELLIPSE" was AX=002Dh
    This call is ignored in text modes
    The ellipse is centered at the current graphics cursor position
SeeAlso: AX=0006h,AX=000Dh,AX=0025h,AX=0076h,AX=0079h
--------V-620025-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ELLIPSEF" - DRAW FILLED ELLIPSE IN SCREEN SPACE
    AX = 0025h
    BX = horizontal semi-axis length in screen space units
    CX = vertical semi-axis length in screen space units
Notes:    For FGDRIVER v1.10, this function was "FG_DRAW" (see AX=001Bh);
      "FG_ELLIPSEF" did not exist yet
    This call is ignored in text modes
    The ellipse is centered at the current graphics cursor position
SeeAlso: AX=0006h,AX=000Eh,AX=0024h,AX=0076h,AX=0078h
--------V-620026-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_ERASE" - CLEAR THE ACTIVE VIDEO PAGE
    AX = 0026h
Note:    For FGDRIVER v1.10, this function was "FG_DRAWREL" (see AX=001Eh);
      "FG_ERASE" was AX=001Eh
    This function sets each pixel to 0 in graphics modes, each character
      cell to a blank with a gray foreground attribute in text modes
SeeAlso: AX=0027h,AX=0029h,AX=002Bh
--------V-620027-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FADEIN" - FADE IN HIDDEN PAGE
    AX = 0027h
    BX = delay (0000h = fastest possible fade-in)
Notes:    For FGDRIVER v1.10, this function was "FG_DASH" (see AX=0014h);
      "FG_FADEIN" was AX=0064h
    The current hidden page is copied to the current visible page in small
      random sections to produce a fade-in effect
    This call is ignored in text modes
SeeAlso: AX=0026h,AX=0028h,AX=0029h
--------V-620028-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FADEOUT" - FADE OUT TO CURRENT COLOR
    AX = 0028h
    BX = delay (0000h = fastest possible fade-out)
Notes:    For FGDRIVER v1.10, this function was "FG_DASHREL" (see AX=0015h);
      "FG_FADEOUT" was AX=0065h
    The current visible page is filled with pixels of the current color in
      small random sections to give a fade-out effect
    This call is ignored in text modes
SeeAlso: AX=0026h,AX=0027h,AX=0029h
--------V-620029-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FILLPAGE" - FILL THE ACTIVE VIDEO PAGE
    AX = 0029h
Desc:    fill the active video page with pixels of the current color (graphics
      modes) or the block character DBh with the current character
      attributes (text modes)
Note:    For FGDRIVER v1.10, this function was "FG_SETCLIP" (see AX=008Ch);
      "FG_FILLPAGE" did not exist yet
SeeAlso: AX=0026h,AX=0027h,AX=0028h
--------V-62002A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLIPMASK" - DISPLAY INV CLIPPED IMAGE (MASKMAP)
    AX = 002Ah
    ES:BX -> array containing image stored as a masking map (see #1852)
    CX = number of pixel runs in masking map
    DX = width of masking map in pixels
Notes:    For FGDRIVER v1.10, this function was "FG_RECT" (see AX=0080h);
      "FG_FLIPMASK" was AX=0054h
    This call is ignored in text modes and in native EGA and VGA graphics
      modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ch,AX=0086h,AX=008Ch,AX=00A5h
--------V-62002B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLOOD" - FLOOD FILL ARBITRARY CLOSED REGION
    AX = 002Bh
    BX = starting column
    CX = starting row
Desc:    fill the bounded region around the specified point (respecting clipping
      region) with the currrent color
Notes:    For FGDRIVER v1.10, this function was "FG_CLPRECT" (see AX=0011h);
      "FG_FLOOD" did not exist yet
    This function is ignored in text modes
SeeAlso: AX=0026h,AX=006Eh
--------V-62002C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FLPIMAGE" - DISPLAY INV CLIPPED IMAGE (BITMAP)
    AX = 002Ch
    ES:BX -> mode-specific bitmap
    CX = width of bit map in bytes
    DX = height of bit map in pixel rows
Notes:    For FGDRIVER v1.10, this function was "FG_DRECT" (see AX=0021h);
      "FG_FLPIMAGE" was AX=004Ch
    This call is ignored in text modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
    The current clipping region is used, extended to a byte boundary
SeeAlso: AX=0010h,AX=0022h,AX=002Ah,AX=0038h,AX=0085h,AX=008Ch,AX=009Ah
--------V-62002D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FONTSIZE" - SPECIFY FONT SIZE FOR TEXT OUTPUT
    AX = 002Dh
    BX = desired character height in scan lines (8, 14, 16)
Notes:    For FGDRIVER v1.10, this function was "FG_ELLIPSE" (see AX=0024h);
      "FG_FONTSIZE" did not exist yet
    This call is ignored if the current mode is not a VGA or SVGA graphics
      mode, or the specified character height is not 8, 14, or 16
SeeAlso: AX=007Ch
--------V-62002E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_FREEPAGE" - FREE VIRTUAL OR LOGICAL VIDEO PAGE
    AX = 002Eh
    BX = page number (0000h-003Fh)
Return: AX = status (0000h,0001h,0007h,0009h) (see #1851)
Note:    For FGDRIVER v1.10, this function was "FG_POLYGON" (see AX=0079h);
      "FG_FREEPAGE" was AX=0043h
SeeAlso: AX=0000h,AX=0001h,AX=0002h,AX=0003h
--------V-62002F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETADDR" - GET SEGMENT OF ACTIVE VIDEO PAGE
    AX = 002Fh
Return: AX = segment of active video page
Note:    For FGDRIVER v1.10, this function was "FG_PAINT" (see AX=006Eh);
      "FG_GETADDR" was AX=0044h
SeeAlso: AX=0036h,AX=008Fh
--------V-620030-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETATTR" - GET CHARACTER ATTRIB FOR POSITION
    AX = 0030h
    BX = row
    CX = column
Return: AX = character attribute at specified location on active video page
Notes:    For FGDRIVER v1.10, this function was "FG_CIRCLE" (see AX=000Dh);
      "FG_GETATTR" was AX=0037h
    This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=0032h,AX=0034h,AX=008Ah
--------V-620031-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETBLOCK" - GRAB RECTANGLE OF DISPLAY
    AX = 0031h
    ES:BX -> buffer for screen contents
    CX = leftmost column
    DX = rightmost column
    SI = top row
    DI = bottom row
Notes:    For FGDRIVER v1.10, this function was unused, and "FG_GETBLOCK" did not
      exist yet
    In text modes, coordinates are character positions; in graphics modes,
      they are defined in screen space, and the left and right edges are
      adjusted to a byte boundary if necessary
    Use "FG_IMAGESIZ" (see AX=004Bh) to determine the required buffer size
SeeAlso: AX=0038h,AX=004Bh,AX=007Dh
--------V-620032-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCHAR" - GET CHARACTER FOR SCREEN POSITION
    AX = 0032h
    BX = row
    CX = column
Return: AX = character at specified location on active video page
Notes:    For FGDRIVER v1.10, this function was "FG_TEXT" (see AX=00A8h);
      "FG_GETCHAR" was AX=0038h
    This call is ignored in graphics modes
SeeAlso: AX=000Bh,AX=0030h,AX=007Ch,AX=008Ah,AX=00A8h
--------V-620033-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCLOCK" - GET CLOCK TICKS SINCE MIDNIGHT
    AX = 0033h
Return: DX:AX = number of clock ticks since midnight
Note:    For FGDRIVER v1.10, this function was "FG_LOCATE" (see AX=0055h);
      "FG_GETCLOCK" was AX=0099h
SeeAlso: INT 1A/AH=00h
--------V-620034-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETCOLOR" - GET CURRENT TEXT ATTRIBUTE
    AX = 0034h
Return: AX = current text attribute or color index (graphics modes)
Note:    For FGDRIVER v1.10, this function was "FG_WHERE" (see AX=00AFh);
      "FG_GETCOLOR" was AX=0015h
SeeAlso: AX=000Bh,AX=0030h,AX=008Ah
--------V-620035-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETDACS" - GET VIDEO DAC CONTENTS
    AX = 0035h
    CX = number of DAC registers to return (0001h to 0100h)
    DX = starting DAC register number (0000h to 00FFh)
    ES:BX -> buffer for DAC red/green/blue triples
Notes:    For FGDRIVER v1.10, this function was "FG_CHGATTR" (see AX=000Bh);
      "FG_GETDACS" was AX=00A4h
    The register number wraps back to zero after FFh
SeeAlso: AX=0042h,AX=006Fh,AX=008Eh
--------V-620036-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETENTRY" - GET PAGE TYPE AND ADDRESS
    AX = 0036h
    ES:BX -> variable pointer record (see #1853)
    CX = page number (00h-3Fh)
Notes:    For FGDRIVER v1.10, this function was "FG_CHGTEXT" (see AX=000Ch);
      "FG_GETENTRY" did not exist yet
    Page addresses are segments for pages stored in conventional memory
      (including physical and virtual pages), and EMS or XMS handles for
      pages stored in EMS or XMS
SeeAlso: AX=0000h,AX=008Fh

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1853)
 00h    WORD    segment of WORD buffer for page address
 02h    WORD    offset of WORD buffer for page address
 04h    WORD    segment of WORD buffer for page type (se #1854)
 06h    WORD    offset of WORD buffer for page type

(Table 1854)
Values for FGDRIVER page type:
 0000h    unallocated
 0001h    physical
 0002h    virtual
 0003h    logical page, stored in expanded memory (EMS)
 0004h    logical page, stored in extended memory (XMS)
 0005h    logical page, stored in conventional memory
--------V-620037-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETHPAGE" - GET CURRENT HIDDEN VIDEO PAGE NUM
    AX = 0037h
Return: AX = current hidden video page number (0000h-003Fh)
Note:    For FGDRIVER v1.10, this function was "FG_GETATTR" (see AX=0030h);
      "FG_GETHPAGE" was AX=0040h
SeeAlso: AX=0040h,AX=0043h,AX=0091h
--------V-620038-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETIMAGE" - STORE IMAGE AS BITMAP
    AX = 0038h
    ES:BX -> buffer for video mode-specific bitmap
    CX = width of bitmap in bytes
    DX = height of bitmap in pixel rows
Note:    For FGDRIVER v1.10, this function was "FG_GETCHAR" (see AX=0032h);
      "FG_GETIMAGE" was AX=0048h
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=007Eh,AX=0085h
--------V-620039-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETINDEX" - GET COLOR VALUE FOR COLOR INDEX
    AX = 0039h
    BX = color index (0000h to 00FFh)
Return: AX = color value for specified color index
Notes:    For FGDRIVER v1.10, this function was unused;"FG_GETINDEX" was AX=0016h
    This call returns the value passed to it in text and 256-color
      graphics modes
SeeAlso: AX=0016h,AX=0034h
--------V-62003A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETKEY" - GET NEXT KEYSTROKE
    AX = 003Ah
    ES:BX -> variable pointer record (see #1855)
Return: (after next keystroke if no typeahead) variables updated
Note:    For FGDRIVER v1.10, this function was unused; "FG_GETKEY" was AX=006Eh
SeeAlso: AX=000Ah,AX=0051h,AX=0054h,AX=00ADh,INT 16/AH=00h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1855)
 00h    WORD    segment of BYTE buffer for ASCII keycode
 02h    WORD    offset of BYTE buffer for ASCII keycode
 04h    WORD    segment of BYTE buffer for extended keycode
 06h    WORD    offset of BYTE buffer for extended keycode
--------V-62003B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETLINES" - GET TEXT ROWS FOR CURR VIDEO MODE
    AX = 003Bh
Return: AX = number of text rows on screen in current video mode
Note:    For FGDRIVER v1.10, this function was unused;"FG_GETLINES" was AX=0010h
SeeAlso: AX=0092h,AX=00A2h
--------V-62003C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAP" - STORE IMAGE AS MODE-INDEPENDNT BITMAP
    AX = 003Ch
    ES:BX -> buffer for video mode-independent bitmap
    CX = width of bitmap in bytes
    DX = height of bitmap in pixel rows
Return: each bit in bitmap is set if corresponding pixel is of the current
      color, cleared otherwise
Notes:    For FGDRIVER v1.10, this function was "FG_GETPAGE" (see AX=0040h);
      "FG_GETMAP" was AX=0046h
    This call is ignored in text modes
SeeAlso: AX=0010h,AX=001Ch,AX=0022h
--------V-62003D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAXX" - GET MAXIMUM COLUMN IN SCREEN SPACE
    AX = 003Dh
Return: AX = maximum X coordinate in screen space
        (or character space if in text mode)
Note:    For FGDRIVER v1.10, this function was "FG_SETPAGE" (see AX=0095h);
      "FG_GETMAXX" was AX=000Ah
SeeAlso: AX=003Eh,AX=00A1h
--------V-62003E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMAXY" - GET MAXIMUM ROW IN SCREEN SPACE
    AX = 003Eh
Return: AX = maximum Y coordinate in screen space
        (or character space if in text mode)
Note:    For FGDRIVER v1.10, this function was "FG_GETVPAGE" (see AX=0043h);
      "FG_GETMAXY" was AX=000Bh
SeeAlso: AX=003Dh,AX=00A1h
--------V-62003F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETMODE" - GET CURRENT VIDEO MODE NUMBER
    AX = 003Fh
    ES:BX -> WORD ???
Return: AX = current video mode number
Note:    For FGDRIVER v1.10, this function was "FG_SETVPAGE" (see AX=0098h);
      "FG_GETMODE" was AX=0000h
SeeAlso: AX=0093h
--------V-620040-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETPAGE" - GET ACTIVE VIDEO PAGE NUMBER
    AX = 0040h
Return: AX = active video page (0000h-003Fh)
Note:    For FGDRIVER v1.10, this function was "FG_GETHPAGE" (see AX=0037h);
      "FG_GETPAGE" was AX=003Ch
SeeAlso: AX=002Fh,AX=0036h,AX=0037h,AX=0043h,AX=0095h
--------V-620041-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETPIXEL" - GET COLOR OF SPECIFIED PIXEL
    AX = 0041h
    BX = column in screen space
    CX = row in screen space
Return: AX = color value of pixel (0 to num_colors-1)
        0000h in text modes
Note:    For FGDRIVER v1.10, this function was "FG_SETHPAGE" (see AX=0091h);
      "FG_GETPIXEL" was AX=0020h
SeeAlso: AX=0030h,AX=0032h,AX=0076h,AX=0077h
--------V-620042-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETRGB" - GET VIDEO DAC REGISTER CONTENTS
    AX = 0042h
    ES:BX -> variable pointer record (see #1856)
    CX = DAC register number
Return: variables updated
Notes:    For FGDRIVER v1.10, this function was "FG_ALLOCATE" (see AX=0000h);
      "FG_GETRGB" was AX=001Ch
    This call is ignored in text modes and CGA/EGA video modes (since
      they do not use DAC registers)
SeeAlso: AX=0035h,AX=006Fh,AX=008Eh

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1856)
 00h    WORD    segment of WORD buffer for red component of DAC register
 02h    WORD    offset of WORD buffer for red component
 04h    WORD    segment of WORD buffer for green component of DAC register
 06h    WORD    offset of WORD buffer for green component
 08h    WORD    segment of WORD buffer for blue component of DAC register
 0Ah    WORD    offset of WORD buffer for blue component
--------V-620043-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETVPAGE" - GET VISIBLE VIDEO PAGE NUMBER
    AX = 0043h
Return: AX = visible video page (0000h-003Fh)
Note:    For FGDRIVER v1.10, this function was "FG_FREEPAGE" (see AX=002Eh);
      "FG_GETVPAGE" was AX=003Eh
SeeAlso: AX=0037h,AX=0040h,AX=0098h
--------V-620044-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETXJOY" - GET HORIZONTAL POSITION OF JOYSTICK
    AX = 0044h
    BX = joystick number (0001h or 0002h)
Return: AX = horizontal position of joystick
        FFFFh if joystick uninitialized or not present
Notes:    For FGDRIVER v1.10, this function was "FG_GETADDR" (see AX=002Fh);
      "FG_GETXJOY" was AX=0076h
    The actual coordinates are processor- and joystick-dependent
    You must call "FG_INITJOY" (AX=004Dh) before using this function
SeeAlso: AX=0009h,AX=0046h,AX=004Dh,AX=0050h,AX=0061h
--------V-620045-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETXPOS" - GET GRAPHICS CURSOR COLUMN
    AX = 0045h
Return: AX = screen space X coordinate of graphics cursor position
Note:    For FGDRIVER v1.10, this function was "FG_RESIZE" (see AX=0082h);
      "FG_GETXPOS" was AX=0021h
SeeAlso: AX=0047h,AX=0068h,AX=0069h
--------V-620046-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETYJOY" - GET VERTICAL POSITION OF JOYSTICK
    AX = 0046h
    BX = joystick number (0001h or 0002h)
Return: AX = vertical position of joystick
        FFFFh if joystick uninitialized or not present
Notes:    For FGDRIVER v1.10, this function was "FG_GETMAP" (see AX=003Ch);
      "FG_GETYJOY" was AX=0077h
    The actual coordinates are processor- and joystick-dependent
    You must call "FG_INITJOY" (AX=004Dh) before using this function
SeeAlso: AX=0009h,AX=0044h,AX=004Dh,AX=0050h,AX=0061h
--------V-620047-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_GETYPOS" - GET GRAPHICS CURSOR ROW
    AX = 0047h
Return: AX = screen space Y coordinate of graphics cursor position
Note:    For FGDRIVER v1.10, this function was "FG_DRAWMAP" (see AX=001Ch);
      "FG_GETYPOS" was AX=0022h
SeeAlso: AX=0045h,AX=0068h,AX=0069h
--------V-620048-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_HUSH" - STOP ASYNCHRONOUS SOUND IMMEDIATELY
    AX = 0048h
Notes:    For FGDRIVER v1.10, this function was "FG_GETIMAGE" (see AX=0038h);
      "FG_HUSH" was AX=008Eh
    This function immediately stops any sounds started with "FG_MUSICB",
      "FG_SOUNDS", or "FG_VOICES"; it is ignored if no asynchronous sound
      is playing
SeeAlso: AX=0049h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-620049-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_HUSHNEXT" - STOP ASYNCHRONOUS SOUND
    AX = 0049h
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
Notes:    For FGDRIVER v1.10, this function was "FG_DRWIMAGE" (see AX=0022h);
      "FG_HUSHNEXT" was AX=008Fh
    This function stops any sounds started with "FG_MUSICB", "FG_SOUNDS",
      or "FG_VOICES" after the current repetition completes; it is ignored
      unless asynchronous sound is continuous
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-62004A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_IMAGEBUF" - SPECIFY TEMPORARY IMAGE BUFFER
    AX = 004Ah
    ES:BX -> buffer to be used when creating or displaying GIF/PCX/PPR/SPR
          images
    CX = size of buffer in bytes or 0000h to use internal buffer
Notes:    For FGDRIVER v1.10, this function was "FG_CLPIMAGE" (see AX=0010h);
      "FG_IMAGEBUF" did not exist yet
    Fastgraph's internal buffer is 4096 bytes; this function allows the
      application to define a larger buffer which will typically speed
      processing
SeeAlso: AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62004B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_IMAGESIZ" - DETERMINE IMAGE STORAGE REQUIREMENT
    AX = 004Bh
    BX = image width in pixels
    CX = image height in pixels
Note:    For FGDRIVER v1.10, this function was "FG_REVIMAGE" (see AX=0085h);
      "FG_IMAGESIZ" was AX=0062h
Return: DX:AX = size in bytes of mode-specific bitmap for current video mode
SeeAlso: AX=0031h,AX=007Dh
--------V-62004C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITEMS" - INITIALIZE EXPANDED MEMORY USE
    AX = 004Ch
Return: AX = status
        0000h successful
        FFFFh expanded memory manager inaccessible or not installed
Notes:    For FGDRIVER v1.10, this function was "FG_FLPIMAGE" (see AX=002Ch);
      "FG_INITEMS" was AX=00A0h
SeeAlso: AX=0002h,AX=004Eh
--------V-62004D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITJOY" - INITIALIZE JOYSTICK USE
    AX = 004Dh
    BX = joystick number (0001h or 0002h)
Return: AX = status
        0000h successful
        FFFFh joystick not connected or no game port
Notes:    For FGDRIVER v1.10, this function was "FG_DISPLAY" (see AX=0019h);
      "FG_INITJOY" was AX=0075h
    Fastgraph assumes that the requested joystick is centered at the time
      this function is called
SeeAlso: AX=0009h,AX=0044h,AX=0046h,AX=0050h,AX=0061h
--------V-62004E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INITXMS" - INITIALIZE EXTENDED MEMORY USE
    AX = 004Eh
Return: AX = status
        0000h successful
        FFFFh extended memory manager inaccessible or not installed
Note:    For FGDRIVER v1.10, this function was "FG_DISPLAYP" (see AX=001Ah);
      "FG_INITXMS" was AX=00A1h
SeeAlso: AX=0003h,AX=004Ch
--------V-62004F-----------------------------
INT 62 u - FDGRIVER v3.03 - "FG_INSIDE" - CHECK IF POINT INSIDE CONVEX POLYGON
    AX = 004Fh
    ES:BX -> vertex array
    CX = number of vertices
    DX = screen space column of point to test
    SI = screen space row of point to test
Return: AX = result
        0000h point is outside polygon
        0001h point is inside polygon
        undefined if not a convex polygon
Note:    For FGDRIVER v1.10, this function was "FG_DISPFILE" (see AX=0018h);
      "FG_INSIDE" did not exist yet
SeeAlso: AX=0078h,AX=0079h,AX=007Ah
--------V-620050-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INTJOY" - GET KEYCODES CORRESP TO JOYSTICK POS
    AX = 0050h
    CX = joystick number (0001h or 0002h)
    ES:BX -> variable pointer record (see #1857)
Notes:    For FGDRIVER v1.10, this function was "FG_PATTERN" (see AX=0072h);
      "FG_INTJOY" was AX=0079h
    If the indicated joystick has not been initialized with AX=0075h, both
      the button code and joystick position will be set to 00h
    If either button is pressed, a button code of 0Dh is returned;
      otherwise, a button code of 00h is returned
SeeAlso: AX=0009h,AX=0044h,AX=0046h,AX=004Dh,AX=0061h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1857)
 00h    WORD    segment of BYTE buffer for button code
 02h    WORD    offset of BYTE buffer for button code
 04h    WORD    segment of BYTE buffer for joystick position
 06h    WORD    offset of BYTE buffer for joystick position
--------V-620051-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_INTKEY" - GET KEYSTROKE, NO WAIT
    AX = 0051h
    ES:BX -> variable pointer record (see #1858)
Return: variables updated
Notes:    For FGDRIVER v1.10, this function was "FG_DRAWMASK" (see AX=001Dh);
      "FG_INTKEY" was AX=006Fh
    If the keyboard buffer is empty, both the ASCII and extended keycodes
      are set to 00h
SeeAlso: AX=000Ah,AX=003Ah,AX=0054h,AX=00ADh,INT 16/AH=01h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1858)
 00h    WORD    segment of BYTE buffer for ASCII keycode
 02h    WORD    offset of BYTE buffer for ASCII keycode
 04h    WORD    segment of BYTE buffer for extended keycode
 06h    WORD    offset of BYTE buffer for extended keycode
--------V-620052-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_JUSTIFY" - SET TEXT OUTPUT JUSTIFICATION
    AX = 0052h
    BX = horizontal justification
          (00h centered, 01h right-justified, FFh left-justified)
    CX = vertical justification
          (00h centered, 01h top of characters, FFh bottom of chars)
Note:    For FGDRIVER v1.10, this function was "FG_CLIPMASK" (see AX=000Fh);
      "FG_JUSTIFY" did not exist yet
SeeAlso: AX=000Ch,AX=002Dh,AX=007Ch
--------V-620053-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_KBINIT" - ENABLE/DISABLE LOW-LEVEL KBD HANDLER
    AX = 0053h
    BX = new state (0000h disabled, 0001h enabled)
Notes:    For FGDRIVER v1.10, this function was "FG_REVMASK" (see AX=0086h);
      "FG_KBINIT" did not exist yet
    When the low-level handler is enabled, "FG_GETKEY", "FG_INTKEY",
      "FG_WAITKEY", and all other functions calling DOS or BIOS keyboard
      services become unavailable
SeeAlso: AX=0054h
--------V-620054-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_KBTEST" - CHECK WHETHER SPECIFIED KEY PRESSED
    AX = 0054h
    BX = scan code of desired key
Return: AX = state
        0000h key is not pressed
        0001h key is currently pressed
Notes:    For FGDRIVER v1.10, this function was "FG_FLIPMASK" (see AX=002Ah);
      "FG_KBTEST" did not exist yet
    The low-level keyboard handler must have been enabled with AX=0053h
SeeAlso: AX=0053h,INT 16/AH=01h
--------V-620055-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_LOCATE" - SET TEXT-MODE CURSOR POSITION
    AX = 0055h
    BX = row
    CX = column
Notes:    For FGDRIVER v1.10, this function was unused; "FG_LOCATE" was AX=0033h
    There are only eight text cursors shared by successive groups of
      eight video pages (pages 0, 8, 16, ... share one cursor, 1, 9, ...
      share the second, etc)
SeeAlso: AX=0045h,AX=0047h,AX=0068h,AX=00AFh
--------V-620056-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
    AX = 0056h
Return: AX destroyed
--------V-620057-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKEPCX" - CREATE PCX FILE FROM SCREEN WINDOW
    AX = 0057h
    BX = left edge in screen space units
    CX = right edge in screen space units
    DX = top edge in screen space units
    SI = bottom edge in screen space units
    ES:DI -> ASCIZ filename of PCX file to create
Return: AX = status
        0000h successful
        0001h file not created
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MAKEPCX" was AX=0061h
    The PCX file is created from the specified region of the active video
      page; the left and right edges are adjusted to a byte boundary if
      necessary
    If the specified file already exists, it is overwritten
    This call is ignored in text and Hercules low-resolution graphics modes
SeeAlso: AX=004Ah,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620058-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKEPPR" - CREATE PACKED PIXEL RUN FILE
    AX = 0058h
    BX = left edge in screen space units
    CX = right edge in screen space units
    DX = top edge in screen space units
    SI = bottom edge in screen space units
    ES:DI -> ASCIZ filename of PPR file to create
Return: AX = status
        0000h successful
        0001h file not created
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MAKEPPR" did not
      exist yet
    The PPR file is created from the specified region of the active video
      page; the left and right edges are adjusted to byte boundaries if
      necessary
    If the specified file already exists, it is overwritten
    This call is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0059h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-620059-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAKESPR" - CREATE STANDARD PIXEL RUN FILE
    AX = 0059h
    BX = left edge in screen space units
    CX = right edge in screen space units
    DX = top edge in screen space units
    SI = bottom edge in screen space units
    ES:DI -> ASCIZ filename of SPR file to create
Return: AX = status
        0000h successful
        0001h file not created
Note:    For FGDRIVER v1.10, this function was unused; "FG_MAKESPR" did not
      exist yet
    The SPR file is created from the specified region of the active video
      page; the left and right edges are adjusted to byte boundaries if
      necessary
    If the specified file already exists, it is overwritten
    This call is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=009Ah,AX=009Bh,AX=009Ch
--------V-62005A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MAPRGB" - MAP COLOR COMPONENTS INTO PALETTE VAL
    AX = 005Ah
    BX = red component
    CX = green component
    DX = blue component
Return: AX = mode-specific palette value corresponding to specified components
Notes:    For FGDRIVER v1.10, this function was "FG_SAVE" (see AX=0087h);
      "FG_MAPRGB" was AX=001Dh
    This function is only meaningful in 16-color graphics modes
SeeAlso: AX=0042h,AX=0096h
--------V-62005B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEASURE" - GET DELAY UNITS PER CLOCK TICK
    AX = 005Bh
Return: AX = delay units per clock tick (processor-dependent)
Notes:    For FGDRIVER v1.10, this function was "FG_RESTORE" (see AX=0083h);
      "FG_MEASURE" was AX=0098h
    These delay units are used by "FG_STALL" (see AX=009Fh)
SeeAlso: AX=009Fh
--------V-62005C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEMAVAIL" - QUERY AMOUNT OF FREE MEMORY
    AX = 005Ch
Return: DX:AX = number of bytes of conventional memory available
Note:    For FGDRIVER v1.10, this function was "FG_TRANSFER" (see AX=00A9h);
      "FG_MEMAVAIL" was AX=009Bh
SeeAlso: AX=004Ch,AX=005Dh
--------V-62005D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MEMORY" - GET SIZE OF VIDEO MEMORY
    AX = 005Dh
Return: AX = size of video memory in KB
Notes:    For FGDRIVER v1.10, this function was "FG_TCXFER" (see AX=00A6h);
      "FG_MEMORY" did not exist yet
    You must first call "FG_SVGAINIT" (see AX=00A1h) before using this
      function
SeeAlso: AX=005Ch
--------V-62005E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEBUT" - GET MOUSE BUTTON PRESS/RELEASE CNTS
    AX = 005Eh
    CX = mouse button (1 = left press, 2 = right press, 3 = middle press,
          -1=left release, -2=right release, -3=middle release)
    ES:BX -> variable pointer record (see #1859)
Return: variables updated
Notes:    For FGDRIVER v1.10, this function was "FG_TCMASK" (see AX=00A5h);
      "FG_MOUSEBUT" was AX=007Ch
    This function returns the count of presses or releases since the last
      call to this function; if the count is zero, row and column will
      also be zero
SeeAlso: AX=005Fh,AX=0061h,AX=0064h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1859)
 00h    WORD    segment of WORD buffer for press/release count
 02h    WORD    offset of WORD buffer for press/release count
 04h    WORD    segment of WORD buffer for screen space col of last press/rls
 06h    WORD    offset of WORD buffer for screen space col of last press/rels
 08h    WORD    segment of WORD buffer for screen space row of last press/rls
 0Ah    WORD    offset of WORD buffer for screen space row of last press/rls
--------V-62005F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSECUR" - SPECIFY TEXT-MODE MOUSE CURSOR
    AX = 005Fh
    BX = screen mask
    CX = cursor mask
Notes:    For FGDRIVER v1.10, this function was "FG_COPYPAGE" (see AX=0012h);
      "FG_MOUSECUR" was AX=007Eh
    This call is ignored in graphics modes
SeeAlso: AX=0065h,AX=0067h
--------V-620060-----------------------------
INT 62 u - FGDRIVER v1.10 only - "FG_DISPPCX" - DISPLAY PCX FILE
    AX = 0060h
    ES:BX -> ASCIZ filename
    CX = flags
        bit 0: use current palette rather than PCX file's palette
        bits 1-15 reserved (0)
Return: AX = status
        0000h success
        0001h file not found
        0002h file is not a valid PCX file
Notes:    This call is ignored in text modes and Hercules low-resolution graphics
    The image is displayed with its upper left corner at the current
      graphics cursor position
SeeAlso: AX=009Ah
--------V-620060-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEFIN" - UNHOOK FASTGRAPH MOUSE HANDLER
    AX = 0060h
Notes:    For FGDRIVER v1.10, this function was "FG_DISPPCX", which no longer
      exists; "FG_MOUSEFIN" did not exist yet
    This function should be called before switching back to text mode if
      "FG_MOUSEINI" was called while in an SVGA graphics mode
SeeAlso: AX=0061h
--------V-620061-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEINI" - INITIALIZE MOUSE SUPPORT
    AX = 0061h
Return: AX = status
        0002h two-button mouse
        0003h three-button mouse
        FFFFh initialization failed
Notes:    For FGDRIVER v1.10, this function was "FG_MAKEPCX" (see AX=0057h);
      "FG_MOUSEINI" was AX=007Ah
    After this call, the mouse cursor is invisible
SeeAlso: AX=0060h"3.03",AX=0062h,AX=0066h
--------V-620062-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSELIM" - SPECIFY MOUSE CURSOR LIMITS
    AX = 0062h
    BX = left-most position allowed for mouse cursor
    CX = right-most position allowed
    DX = top-most position allowed
    SI = bottom-most position allowed
Note:    For FGDRIVER v1.10, this function was "FG_IMAGESIZ" (see AX=004Bh);
      "FG_MOUSELIM" was AX=0080h
SeeAlso: AX=0061h,AX=0063h,INT 33/AX=0007h,INT 33/AX=0008h
--------V-620063-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEMOV" - SET MOUSE CURSOR POSITION
    AX = 0063h
    BX = new column
    CX = new row
Notes:    For FGDRIVER v1.10, this function was unused;"FG_MOUSEMOV" was AX=0081h
    This function will not move the mouse cursor outside the bounding box
      specified with AX=0080h
SeeAlso: AX=0062h,AX=0064h,INT 33/AX=0004h
--------V-620064-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEPOS" - GET CURRENT MOUSE POSITION
    AX = 0064h
    ES:BX -> variable pointer record (see #1860)
Notes:    For FGDRIVER v1.10, this function was "FG_FADEIN" (see AX=0027h);
      "FG_MOUSEPOS" was AX=007Dh
SeeAlso: AX=0063h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1860)
 00h    WORD    segment of WORD buffer for mouse column
 02h    WORD    offset of WORD buffer for mouse column
 04h    WORD    segment of WORD buffer for mouse row
 06h    WORD    offset of WORD buffer for mouse row
 08h    WORD    segment of WORD buffer for button status
 0Ah    WORD    offset of WORD buffer for button status
Note:    button status: bit 0 = left button, bit 1 = right, bit 2 = middle
--------V-620065-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEPTR" - SPECIFY GRAPH-MODE MOUSE CURSOR
    AX = 0065h
    ES:BX -> masks (16-byte screen mask followed by 16-byte cursor mask)
    CX = X offset of hot spot from upper left corner
    DX = Y offset of hot spot from upper left corner
Notes:    For FGDRIVER v1.10, this function was "FG_FADEOUT" (see AX=0028h);
      "FG_MOUSEPTR" was AX=007Fh
    This call is ignored in text modes
SeeAlso: AX=005Fh,INT 33/AX=0009h
--------V-620066-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSESPD" - SET MOUSE CURSOR SPEED
    AX = 0066h
    BX = horizontal mickeys per eight pixels of movement (default 16)
    CX = vertical mickeys per eight pixels of movement (default 16)
Note:    For FGDRIVER v1.10, this function was "FG_PAN" (see AX=0071h);
      "FG_MOUSESPD" was AX=0082h
SeeAlso: INT 33/AX=000Fh,INT 33/AX=001Ah
--------V-620067-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOUSEVIS" - SET MOUSE CURSOR VISIBILITY
    AX = 0067h
    BX = new state (0000h invisible, 0001h visible)
Note:    For FGDRIVER v1.10, this function was "FG_SCROLL" (see AX=0089h);
      "FG_MOUSEVIS" was AX=007Bh
SeeAlso: AX=0061h,INT 33/AX=0001h,INT 33/AX=0002h
--------V-620068-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOVE" - SET GRAPHICS CURSOR POSITION
    AX = 0068h
    BX = new column
    CX = new row
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MOVE" was AX=0023h
    This call is ignored in text modes
SeeAlso: AX=0045h,AX=0047h,AX=0055h,AX=0063h,AX=0069h,AX=00AFh
--------V-620069-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MOVEREL" - ADJUST GRAPHICS CURSOR POSITION
    AX = 0069h
    BX = column offset
    CX = row offset
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MOVEREL" was AX=0024h
    This call is ignored in text modes
SeeAlso: AX=0045h,AX=0047h,AX=0068h
--------V-62006A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MUSIC" - PLAY SERIES OF NOTES
    AX = 006Ah
    ES:BX -> '$'-terminated music string in BASIC PLAY format
Return: after music completed
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MUSIC" was AX=008Ch
    This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
      AX=008Dh) is already in progress
SeeAlso: AX=006Bh,AX=009Dh,AX=00AAh
--------V-62006B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_MUSICB" - PLAY SERIES OF NOTES IN BACKGROUND
    AX = 006Bh
    CX = number of repetitions (negative = continuous play)
    ES:BX -> '$'-terminated music string in BASIC PLAY format
Notes:    For FGDRIVER v1.10, this function was unused; "FG_MUSICB" was AX=008Dh
    This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
      AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-62006C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_NUMLOCK" - GET STATE OF NUMLOCK KEY
    AX = 006Ch
Return: AX = NumLock state (0000h off, 0001h on)
Note:    For FGDRIVER v1.10, this function was unused; "FG_NUMLOCK" was AX=0072h
SeeAlso: AX=000Ah,AX=0088h,AX=008Bh,AX=0094h
--------V-62006D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAGESIZE" - GET VIDEO PAGE SIZE FOR CURR MODE
    AX = 006Dh
Return: DX:AX = page size in bytes
Note:    For FGDRIVER v1.10, this function was "FG_WAITKEY" (see AX=00ADh);
      "FG_PAGESIZE" did not exist yet
SeeAlso: AX=005Dh
--------V-62006E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAINT" - FLOOD CLOSED REGION WITH COLOR
    AX = 006Eh
    BX = column
    CX = row
Notes:    For FGDRIVER v1.10, this function was "FG_GETKEY" (see AX=003Ah);
      "FG_PAINT" was AX=002Fh
    This function fills an arbitrary closed region around the specified
      point with the current color; the screen edges are not considered
      region boundaries
    This call is ignored in text modes
SeeAlso: AX=002Bh
--------V-62006F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PALETTE" - SET PALETTE / SET VIDEO DAC REGISTER
    AX = 006Fh
---CGA 4-color graphics---
    BX = CGA paletee number
    CX = background color
---CGA 2-color graphics---
    BX ignored
    CX = foreground color
---16-color graphics---
    BX = palette register number
    CX = palette value
---256-color graphics---
    BX = DAC register number
    CX =  DAC value
Notes:    For FGDRIVER v1.10, this function was "FG_INTKEY" (see AX=0051h);
      "FG_PALETTE" was AX=0017h
    This function is ignored in text modes and Hercules graphics modes
    Few EGA/VGA adapters correctly set the foreground color in CGA mode 6
SeeAlso: AX=0035h,AX=0042h,AX=0070h,AX=008Eh
--------V-620070-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PALETTES" - SET ALL PALETTE REGISTERS
    AX = 0070h
    ES:BX -> array of 16 WORDs containing values for palette registers
          (or first 16 DAC registers in 256-color modes)
Notes:    For FGDRIVER v1.10, this function was "FG_CAPSLOCK" (see AX=000Ah);
      "FG_PALETTES" was AX=0018h
    This function is ignored in text modes, CGA and Hercules graphics modes
SeeAlso: AX=0035h,AX=0042h,AX=006Fh,AX=008Eh
--------V-620071-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PAN" - SET SCREEN ORIGIN
    AX = 0071h
    BX = new column for screen origin
    CX = new row for screen origin
Note:    For FGDRIVER v1.10, this function was "FG_SETCAPS" (see AX=008Bh);
      "FG_PAN" was AX=0066h
SeeAlso: AX=0095h
--------V-620072-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PATTERN" - SPECIFY DISPLAY PATTERN FOR COLOR
    AX = 0072h
    BX = index of pattern to define
    CX = number of predefined display pattern
Notes:    For FGDRIVER v1.10, this function was "FG_NUMLOCK" (see AX=006Ch);
      "FG_PATTERN" was AX=0050h
    When displaying a pixel run map, Fastgraph uses the pattern associated
      with each color index rather than displaying the actual color
    This call has no effect in text and 256-color graphics modes
SeeAlso: AX=0021h,AX=0039h
--------V-620073-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PCXHEAD" - GET PCX FILE HEADER
    AX = 0073h
    ES:BX -> variable pointer record (see #1861)
Return: AX = status
        0000h successful
        FFFEh not a PCX file
        FFFFh file does not exist
Note:    For FGDRIVER v1.10, this function was "FG_SETNUM" (see AX=0094h);
      "FG_PCXHEAD" did not exist yet
SeeAlso: AX=0074h,AX=009Ah

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1861)
 00h    WORD    segment of ASCIZ filename
 02h    WORD    offset of ASCIZ filename
 04h    WORD    segment of 128-byte buffer for PCX header
 06h    WORD    offset of 128-byte buffer for PCX header
--------V-620074-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PCXMODE" - GET OPTIMAL VIDEO MODE FOR DISPLAY
    AX = 0074h
    ES:BX -> PCX header (see AX=0073h)
Return: AX = optimal video mode for PCX file
        FFFEh not a valid PCX header
        FFFFh unable to determine compatible video mode
Note:    For FGDRIVER v1.10, this function was "FG_SCRLOCK" (see AX=0088h);
      "FG_PCXMODE" did not exist yet
SeeAlso: AX=0073h,AX=009Ah
--------V-620075-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PLAYING" - DETERMINE WHETHER ASYNC SOUND ACTIVE
    AX = 0075h
Return: AX = sound state (0 = no asynchronous sound, 1 = async sound playing)
Note:    For FGDRIVER v1.10, this function was "FG_INITJOY" (see AX=004Dh);
      "FG_PLAYING" was AX=0091h
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00ABh
--------V-620076-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POINT" - DISPLAY A PIXEL
    AX = 0076h
    BX = column
    CX = row
Notes:    For FGDRIVER v1.10, this function was "FG_GETXJOY" (see AX=0044h);
      "FG_POINT" was AX=001Fh
    This call is ignored in text modes
SeeAlso: AX=0006h,AX=001Bh,AX=0041h,AX=0077h
--------V-620077-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POINTX" - DISPLAY A PIXEL IN XOR MODE
    AX = 0077h
    BX = column
    CX = row
Notes:    For FGDRIVER v1.10, this function was "FG_GETYJOY" (see AX=0046h);
      "FG_POINTX" did not exist yet
    This call is ignored in text modes
SeeAlso: AX=0041h,AX=0076h
--------V-620078-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYFILL" - DRAW A FILLED CONVEX POLYGON
    AX = 0078h
    CX = number of vertices
    ES:BX -> variable pointer record (see #1862)
Notes:    For FGDRIVER v1.10, this function was "FG_BUTTON" (see AX=0009h);
      "FG_POLYFILL" did not exist yet
    The vertex array consists of pairs of words specifying the X and Y
      coordinates of each vertex; the work array is used internally and
      must contain at least four times as many bytes as the polygon is
      high in pixels
    This function is ignored in text modes
    If the polygon is non-convex, only a portion of it may be filled
SeeAlso: AX=000Eh,AX=0025h,AX=0079h,AX=007Ah,AX=007Bh

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1862)
 00h    WORD    segment of vertex array
 02h    WORD    offset of vertex array
 04h    WORD    segment of work array
 06h    WORD    offset of work array
--------V-620079-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYGON" - DRAW AN UNFILLED POLYGON
    AX = 0079h
    CX = number of vertices in polygon
    ES:BX -> variable pointer record (see #1863)
Notes:    For FGDRIVER v1.10, this function was "FG_INTJOY" (see AX=0050h);
      "FG_POLYGON" was AX=002Eh
    This call is ignored in text modes
SeeAlso: AX=0078h,AX=007Ah,AX=007Bh

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1863)
 00h    WORD    segment of WORD array containing vertex columns
 02h    WORD    offset of WORD array containing vertex columns
 04h    WORD    segment of WORD array containing vertex rows
 06h    WORD    offset of WORD array containing vertex rows
--------V-62007A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYLINE" - DRAW AN UNFILLED POLYGON
    AX = 007Ah
    CX = number of vertices in polygon
    ES:BX -> vertex array (see #1864)
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSEINI" (see AX=0061h);
      "FG_POLYLINE" did not exist yet
    This function is equivalent to "FG_POLYGON", but uses only a single
      array to define the vertices
    This call is ignored in text modes
SeeAlso: AX=0076h,AX=0078h,AX=0079h,AX=007Bh

Format of FGDRIVER vertex array element:
Offset    Size    Description    (Table 1864)
 00h    WORD    column
 02h    WORD    row
--------V-62007B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_POLYOFF" - DEFINE POLYGON DRAWING OFFSET
    AX = 007Bh
    BX = horizontal offset (default 0)
    CX = vertical offset (default 0)
Desc:    define the offsets applied to all vertices of polygons drawn with
      "FG_POLYFILL" or "FG_POLYLINE"
Note:    For FGDRIVER v1.10, this function was "FG_MOUSEVIS" (see AX=0067h);
      "FG_POLYOFF" did not exist yet
SeeAlso: AX=0078h,AX=007Ah
--------V-62007C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PRINT" - DISPLAY STRING OF HARDWARE CHARACTERS
    AX = 007Ch
    CX = length of string
    ES:BX -> string to display
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSEBUT" (see AX=005Eh);
      "FG_PRINT" did not exist yet
    The string is displayed in the current color, and the graphics cursor
      is updated to be just to the right of the last displayed character
    This function is ignored in text modes
SeeAlso: AX=000Ch,AX=002Dh,AX=0052h
--------V-62007D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PUTBLOCK" - RESTORE RECTANGLE OF DISPLAY
    AX = 007Dh
    ES:BX -> buffer containing previously-saved image
    CX = left edge
    DX = right edge
    SI = top edge
    DI = bottom edge
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSEPOS" (see AX=0064h);
      "FG_PUTBLOCK" did not exist yet
    In text modes, coordinates are character positions; in graphics modes,
      they are defined in screen space, and the left and right edges are
      adjusted to a byte boundary if necessary
SeeAlso: AX=0031h,AX=007Eh
--------V-62007E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_PUTIMAGE" - DISPLAY MODE-SPECIFIC BITMAP IMAGE
    AX = 007Eh
    ES:BX -> buffer containing mode-specific bitmap
    CX = width in bytes
    DX = height in pixel rows
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSECUR" (see AX=005Fh);
      "FG_PUTIMAGE" did not exist yet
    The bitmap is displayed with its lower left corner at the graphics
      cursor position; color 0 is NOT treated as transparent
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=007Dh
--------V-62007F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_QUIET" - STOP CONTINUOUS SYNCHRONOUS SOUND
    AX = 007Fh
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSEPTR" (see AX=0065h);
      "FG_QUIET" was AX=0090h
    This call has no effect if there is no continuous sound playing
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00ABh
--------V-620080-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RECT" - DRAW UNFILLED RECTANGLE IN SCREEN SPACE
    AX = 0080h
    BX = left edge column
    CX = right edge column
    DX = top edge row
    SI = bottom edge row
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSELIM" (see AX=0062h);
      "FG_RECT" was AX=002Ah
SeeAlso: AX=0006h,AX=0011h,AX=0021h,AX=0031h
--------V-620081-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESET" - ERASE SCREEN AND RESTORE SCREEN ATTR
    AX = 0081h
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSEMOV" (see AX=0063h);
      "FG_RESET" was AX=0006h
    This call is ignored in graphics modes
    The screen attributes are only restored if ANSI.SYS is loaded
SeeAlso: AX=0026h,AX=0093h
--------V-620082-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESIZE" - SET GRAPHICS MODE VIDEO PAGE SIZE
    AX = 0082h
    BX = new page width in pixels
    CX = new page height in pixels
Notes:    For FGDRIVER v1.10, this function was "FG_MOUSESPD" (see AX=0066h);
      "FG_RESIZE" was AX=0045h
    The visible page must be set to 0000h before making this call
    The mouse, joysticks, expanded memory, and extended memory must be
      reinitialized after this call
SeeAlso: AX=006Dh,AX=008Fh
--------V-620083-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESTORE" - COPY REGION FROM HIDDEN TO VIS PAGE
    AX = 0083h
    BX = left edge column
    CX = right edge column
    DX = top edge row
    SI = bottom edge row
Notes:    For FGDRIVER v1.10, this function was unused; "FG_RESTORE" was AX=005Bh
    The left and right edges are adjusted to byte boundaries if necessary
SeeAlso: AX=0087h,AX=00A6h
--------V-620084-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_RESUME" - RESTART ASYNCHRONOUS SOUND
    AX = 0084h
Notes:    For FGDRIVER v1.10, this function was unused; "FG_RESUME" was AX=0092h
SeeAlso: AX=009Eh,AX=00A0h
--------V-620085-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_REVIMAGE" - DISPLAY REVERSED IMAGE (BITMAP)
    AX = 0085h
    ES:BX -> mode-specific bitmap
    CX = width of bitmap in bytes
    DX = height of bitmap in pixel rows
Notes:    For FGDRIVER v1.10, this function was unused;"FG_REVIMAGE" was AX=004Bh
    This call is ignored in text modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
SeeAlso: AX=0010h,AX=0022h,AX=002Ch,AX=0038h,AX=0086h,AX=008Ch,AX=009Ah
--------V-620086-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_REVMASK" - DISPLAY REVERSED IMAGE (MASKING MAP)
    AX = 0086h
    ES:BX -> array containing image stored as a masking map (see #1852)
    CX = number of pixel runs in masking map
    DX = width of masking map in pixels
Notes:    For FGDRIVER v1.10, this function was unused; "FG_REVMASK" was AX=0053h
    This call is ignored in text modes and in native EGA and VGA graphics
      modes
    The image is drawn with its lower left corner at the current graphics
      cursor position
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ah,AX=0085h,AX=008Ch,AX=00A5h
--------V-620087-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SAVE" - COPY REGION FROM VISIBLE TO HIDDEN PAGE
    AX = 0087h
    BX = left edge column
    CX = right edge column
    DX = top edge row
    SI = bottom edge row
Notes:    For FGDRIVER v1.10, this function was unused; "FG_SAVE" was AX=005Ah
    The left and right edges are adjusted to byte boundaries if necessary
SeeAlso: AX=0083h,AX=00A6h
--------V-620088-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SCRLOCK" - GET STATE OF SCROLL LOCK KEY
    AX = 0088h
Return: AX = ScrollLock state (0000h off, 0001h on)
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
Note:    For FGDRIVER v1.10, this function was "FG_SOUND" (see AX=009Dh);
      "FG_SCRLOCK" was AX=0074h
SeeAlso: AX=000Ah,AX=006Ch,AX=008Bh,AX=0094h
--------V-620089-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SCROLL" - VERTICALLY SCROLL SCREEN REGION
    AX = 0089h
    BX = left edge column
    CX = right edge column
    DX = top edge row
    SI = bottom edge row
    DI = number of pixels by which to scroll (positive scrolls up,
          negative scrolls down)
    ES = type of scroll
        0000h circular (rows scrolled off are copied to vacated rows)
        else vacated rows are filled with the current color
Notes:    For FGDRIVER v1.10, this function was "FG_SOUNDS" (see AX=009Eh);
      "FG_SCROLL" was AX=0067h
    In graphics modes, the left and right edges are adjusted to byte
      boundaries if necessary
    Circular scrolling uses part of the hidden page as a workspace
SeeAlso: AX=0071h,AX=0095h
--------V-62008A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETATTR" - SET TEXT-MODE CHARACTER ATTRIBUTE
    AX = 008Ah
    BX = foreground
    CX = background
    DX = blink (0000h nonblinking, 0001h blink)
Notes:    For FGDRIVER v1.10, this function was "FG_VOICE" (see AX=00AAh);
      "FG_SETATTR" was AX=0019h
    This call is ignored in graphics modes
SeeAlso: AX=000Bh,,AX=0030h,AX=0034h
--------V-62008B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCAPS" - SET STATE OF CAPSLOCK KEY
    AX = 008Bh
    BX = new state (0000h off, 0001h on)
Note:    For FGDRIVER v1.10, this function was "FG_VOICES" (see AX=00ABh);
      "FG_SETCAPS" was AX=0071h
SeeAlso: AX=000Ah,AX=006Ch,AX=0088h,AX=0094h
--------V-62008C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCLIP" - SET CLIPPING REGION
    AX = 008Ch
    BX = left edge of clipping region
    CX = right edge of clipping region
    DX = top edge of clipping region
    SI = bottom edge of clipping region
Note:    For FGDRIVER v1.10, this function was "FG_MUSIC" (see AX=006Ah);
      "FG_SETCLIP" was AX=0029h
SeeAlso: AX=000Fh,AX=001Dh,AX=002Ah,AX=0086h,AX=00A5h
--------V-62008D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETCOLOR" - SET CURRENT COLOR
    AX = 008Dh
    BX = new color index (or text attribute in text modes)
Note:    For FGDRIVER v1.10, this function was "FG_MUSICB" (see AX=006Bh);
      "FG_SETCOLOR" was AX=001Ah
SeeAlso: AX=0016h,AX=0034h,AX=0039h
--------V-62008E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETDACS" - SET VIDEO DAC CONTENTS
    AX = 008Eh
    CX = number of DAC registers to set (0001h to 0100h)
    DX = starting DAC register number (0000h to 00FFh)
    ES:BX -> buffer containing DAC red/green/blue triples
Notes:    For FGDRIVER v1.10, this function was "FG_HUSH" (see AX=0048h);
      "FG_SETDACS" was AX=00A5h
    The register number wraps back to zero after reaching FFh
    This call has no effect in text modes or graphics modes below 11h
SeeAlso: AX=0035h,AX=0042h,AX=006Fh,INT 10/AX=1012h
--------V-62008F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETENTRY" - SET TYPE AND ADDRESS OF VIDEO PAGE
    AX = 008Fh
    BX = page number (00h-3Fh)
    CX = page address
    DX = page type (see #1854 at AX=0036h)
Notes:    For FGDRIVER v1.10, this function was "FG_HUSHNEXT" (see AX=0049h);
      "FG_SETENTRY" did not exist yet
SeeAlso: AX=002Eh,AX=0036h,AX=0093h
--------V-620090-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETFUNC" - SET LOGICAL OPERATION FOR VIDEO OPS
    AX = 0090h
    BX = operation
        0000h replacement
        0001h AND
        0002h OR
        0003h XOR
Notes:    For FGDRIVER v1.10, this function was "FG_QUIET" (see AX=007Fh);
      "FG_SETFUNC" was AX=009Ch
    This function is only available in native EGA/VGA graphics modes
      (0Dh to 12h)
SeeAlso: AX=001Ch,AX=0076h
--------V-620091-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETHPAGE" - SET HIDDEN VIDEO PAGE
    AX = 0091h
    BX = new hidden page (0000h to 003Fh)
Notes:    For FGDRIVER v1.10, this function was "FG_PLAYING" (see AX=0075h);
      "FG_SETHPAGE" was AX=0041h
    The specified page must be a physical page or a virtual page
SeeAlso: AX=0037h,AX=0095h,AX=0098h
--------V-620092-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETLINES" - SET TEXT ROWS ON SCREEN
    AX = 0092h
    BX = new screen size (25, 43, 50)
Note:    For FGDRIVER v1.10, this function was "FG_RESUME" (see AX=0084h);
      "FG_SETLINES" was AX=0011h
SeeAlso: AX=003Bh
--------V-620093-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETMODE" - SELECT VIDEO MODE AND INITIALIZE
    AX = 0093h
    BX = new video mode or FFFFh for current mode
    ES:DX -> WORD ???
Notes:    For FGDRIVER v1.10, this function was "FG_SUSPEND" (see AX=00A0h);
      "FG_SETMODE" was AX=0001h
    This call resets the active video page to page 0000h, the clipping
      region to the entire screen, text rows to 25, etc.
SeeAlso: AX=003Fh,INT 10/AH=00h

(Table 1865)
Values for FGDRIVER video mode:
 00h-07h standard BIOS modes
 09h    PCjr/Tandy1000 320x200x16
 0Bh    Hercules graphics 720x348
 0Ch    Hercules graphics 320x200
 0Dh-13h standard BIOS modes
 14h    VGA graphics 320x200x256
 15h    VGA graphics 320x400x256
 16h    VGA graphics 320x240x256
 17h    VGA graphics 320x480x256
 18h    SVGA graphics 640x400x256
 19h    SVGA graphics 640x480x256
 1Ah    SVGA graphics 800x600x256
 1Bh    SVGA graphics 1024x768x256
 1Ch    SVGA graphics 800x600x16
 1Dh    SVGA graphics 1024x768x16
--------V-620094-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETNUM" - SET STATE OF NUMLOCK KEY
    AX = 0094h
    BX = new state (0000h off, 0001h on)
Note:    For FGDRIVER v1.10, this function was unused; "FG_SETNUM" was AX=0073h
SeeAlso: AX=000Ah,AX=006Ch,AX=0088h,AX=008Bh
--------V-620095-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETPAGE" - SET ACTIVE VIDEO PAGE
    AX = 0095h
    BX = new video page (0000h to 003Fh)
Notes:    For FGDRIVER v1.10, this function was unused; "FG_SETPAGE" was AX=003Dh
    The specified page must be a physical or virtual page
SeeAlso: AX=002Fh,AX=0036h,AX=0037h,AX=0043h,AX=0071h
--------V-620096-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETRGB" - SET VIDEO DAC REGISTER CONTENTS
    AX = 0096h
    BX = palette or DAC register number
    CX = red color component
    DX = green component
    SI = blue component
Notes:    For FGDRIVER v1.10, this function was "FG_WAITFOR" (see AX=00ACh);
      "FG_SETRGB" was AX=001Bh
    The register number may be negative for Tandy, PCjr, and 200-line
      EGA graphics modes to specify an intense color
    This call has no effect in text, CGA graphics, and Hercules graphics
      modes
SeeAlso: AX=0042h
--------V-620097-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
    AX = 0097h
Return: AX = 0000h
Note:    For FGDRIVER v1.10, this function was "FG_STALL" (see AX=009Fh)
--------V-620098-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SETVPAGE" - SET VISIBLE VIDEO PAGE
    AX = 0098h
    BX = new video page (0000h to 003Fh)
Notes:    For FGDRIVER v1.10, this function was "FG_MEASURE" (see AX=005Bh);
      "FG_SETVPAGE" was AX=003Fh
    The specified page must be a physical or virtual page
SeeAlso: AX=0037h,AX=0091h,AX=0095h
--------V-620099-----------------------------
INT 62 u - FGDRIVER v3.03 - UNUSED
    AX = 0099h
Return: AX destroyed
Note:    For FGDRIVER v1.10, this function was "FG_GETCLOCK" (see AX=0033h)
--------V-62009A-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWPCX" - DISPLAY IMAGE FROM PCX FILE
    AX = 009Ah
    ES:BX -> ASCIZ filename of PCX image
    CX = flags (see #1866)
Return: AX = status
        0000h success
        0001h file not found
        0002h not a PCX file
Notes:    For FGDRIVER v1.10, this function was unused; "FG_SHOWPCX" did not
      exist yet
    This function is ignored in text modes and Hercules low-res graphics
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=0060h"1.10",AX=009Bh,AX=009Ch

Bitfields for FGDRIVER flags:
Bit(s)    Description    (Table 1866)
 0    use current palette rather than PCX file's palette
 1    display image at cursor position instead of position in PCX header
 2-15    reserved
--------V-62009B-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWPPR" - DISPLAY IMAGE FROM PPR FILE
    AX = 009Bh
    ES:BX -> ASCIZ filename of packed pixel run image
    CX = width in pixels (nonzero)
Return: AX = status
        0000h successful
        0001h file not found
Notes:    For FGDRIVER v1.10, this function was "FG_MEMAVAIL" (see AX=005Ch);
      "FG_SHOWPPR" did not exist yet
    The image is displayed with its lower left corner at the current
      graphics cursor position
    This function is ignored in text modes and 256-color graphics modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Ch
--------V-62009C-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SHOWSPR" - DISPLAY IMAGE FROM SPR FILE
    AX = 009Ch
    ES:BX -> ASCIZ filename of standard pixel run image
    CX = width in pixels (nonzero)
Return: AX = status
        0000h successful
        0001h file not found
Notes:    For FGDRIVER v1.10, this function was "FG_SETFUNC" (see AX=0090h);
      "FG_SHOWSPR" did not exist yet
    The image is displayed with its lower left corner at the current
      graphics cursor position
    This function is ignored in text modes
SeeAlso: AX=004Ah,AX=0057h,AX=0058h,AX=0059h,AX=009Ah,AX=009Bh
--------V-62009D-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SOUND" - MAKE SOUND FOR SPECIFIED DURATION
    AX = 009Dh
    BX = frequency in Hertz (18-32767)
    CX = duration in clock ticks (0000h or negative for continuous sound)
Notes:    For FGDRIVER v1.10, this function was "FG_ALLOCCMS" (see AX=0001h);
      "FG_SOUND" was AX=0088h
    This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
      AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00A0h,AX=00AAh
--------V-62009E-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SOUNDS" - PLAY SOUNDS IN BACKGROUND
    AX = 009Eh
    CX = number of times to cycle through sound list
    ES:BX -> sounds array (see #1867)
Notes:    For FGDRIVER v1.10, this function was "FG_ALLOCEMS" (see AX=0002h);
      "FG_SOUNDS" was AX=0089h
    This call is ignored if asynchronous sound (AX=0089h,AX=008Bh,
      AX=008Dh) is already in progress
SeeAlso: AX=0048h,AX=006Bh,AX=009Dh,AX=00A0h,AX=00ABh

Format of FGDRIVER sounds array element:
Offset    Size    Description    (Table 1867)
 00h    WORD    frequency of sound in Hertz (0000h ends array)
 02h    WORD    duration of sound in clock ticks
--------V-62009F-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_STALL" - PAUSE FOR SPECIFIED DURATION
    AX = 009Fh
    BX = duration in processor-dependent delay units (see AX=005Bh)
Return: after delay elapses
Note:    For FGDRIVER v1.10, this function was "FG_ALLOCXMS" (see AX=0003h);
      "FG_STALL" was AX=0097h
SeeAlso: AX=005Bh,INT 2F/AX=1224h
--------V-6200A0-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SUSPEND" - TEMPORARILY STOP ASYNCHRONOUS SOUND
    AX = 00A0h
Notes:    For FGDRIVER v1.10, this function was "FG_INITEMS" (see AX=004Ch);
      "FG_SUSPEND" was AX=0093h
    This call has no effect if there is no asynchronous sound in progress
    The program must not exit while sound is suspended
SeeAlso: AX=0048h,AX=006Ah,AX=009Eh,AX=00A0h,AX=00AAh
--------V-6200A1-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGAINIT" - INITIALIZE FASTGRAPH SVGA KERNEL
    AX = 00A1h
    BX = method (see #1868)
Return: AX = status
        0000h no VESA BIOS or supported SVGA chipset
        0001h using VESA BIOS
        0002h-0016h specific chipset being used (same as "method" below)
Notes:    For FGDRIVER v1.10, this function was "FG_INITXMS" (see AX=004Eh);
      "FG_SVGAINIT" did not exist yet
    This function must be called before attempting to set SVGA graphics
      modes (18h to 1Dh) or using "FG_BESTMODE", "FG_TESTMODE", or
      "FG_MEMORY"
SeeAlso: AX=0023h,AX=00A2h,AX=00A3h

(Table 1868)
Values for FGDRIVER SVGA method:
 0000h    autodetect, give chipset-specific code priority over VESA
 0001h    autodetect, give VESA priority over chipset-specific code
 0002h    Ahead type "A"
 0003h    Ahead type "B"
 0004h    ATI 18800
 0005h    ATI 18800-1
 0006h    ATI 28800
 0007h    Chips & Technologies 82c451/455/456
 0008h    C&T 82c452
 0009h    C&T 82c453
 000Ah    Genoa 6000 series
 000Bh    Oak OTI-067
 000Ch    Paradise PVGA1a
 000Dh    Paradise WD90C00/WD90C10
 000Eh    Paradise WD90C11/WD90C30/WD90C31
 000Fh    Trident 8800
 0010h    Trident 8900
 0011h    Tseng ET3000
 0012h    Tseng ET4000
 0013h    Video7
 0014h    Cirrus Logic 5400 series
 0015h    S3
 0016h    Trident 8900B/8900C/9000
--------V-6200A2-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGASTAT" - GET SVGA CHIPSET INFORMATION
    AX = 00A2h
Return: AX = chipset information (see #1869)
Note:    For FGDRIVER v1.10, this function was "FG_BOX" (see AX=0006h);
      "FG_SVGASTAT" did not exist yet
SeeAlso: AX=0023h,AX=00A1h,AX=00A3h

Bitfields for FGDRIVER chipset information:
Bit(s)    Description    (Table 1869)
 0    SVGA kernel initialized
 1    VESA support enabled
 2    extended video pages available in modes 13-23
 3    SVGA chipset has separate read and write banks
 4-15    reserved (0)
--------V-6200A3-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_SVGAVER" - GET FASTGRAPH SVGA KERNEL VERSION
    AX = 00A3h
    ES:BX -> variable pointer record (see #1870)
Note:    For FGDRIVER v1.10, this function was "FG_BOXDEPTH" (see AX=0007h);
      "FG_SVGAVER" did not exist yet
SeeAlso: AX=00A1h,AX=00A2h

Format of FGDRIVER variable pointer record:
Offset    Size    Description    (Table 1870)
 00h    WORD    segment of WORD buffer for major version
 02h    WORD    offset of WORD buffer for major version
 04h    WORD    segment of WORD buffer for minor version (hundredths)
 06h    WORD    offset of WORD buffer for minor version
--------V-6200A4-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCDEFINE" - DEFINE TRANSPARENCY OF COLOR INDEX
    AX = 00A4h
    BX = color index
    CX = transparency (00h opaque, other transparent)
Notes:    For FGDRIVER v1.10, this function was "FG_GETDACS" (see AX=0035h);
      "FG_TCDEFINE" did not exist yet
    This function is ignored in text modes
SeeAlso: AX=00A5h,AX=00A6h
--------V-6200A5-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCMASK" - SET TRANSPARENT COLORS
    AX = 00A5h
    BX = colors to consider transparent (bit 0 = color 0, etc)
Notes:    For FGDRIVER v1.10, this function was "FG_SETDACS" (see AX=008Eh);
      "FG_TCMASK" was AX=005Eh
    This call is ignored in text modes
    The specified colors are considered transparent by "FG_TCXFER"
SeeAlso: AX=00A4h,AX=00A6h
--------V-6200A6-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TCXFER" - COPY REGION EXCLUDING TRANSPARENT
    AX = 00A6h
    CX = source video page
    DX = destination video page
    ES:BX -> copy record (see #1871)
Notes:    For FGDRIVER v1.10, this function was unused; "FG_TCXFER" was AX=005Dh
    Pixels which are in any of the colors defined as transparent with
      "FG_TCMASK" (see AX=00A5h) are left unchanged in the destination
      region
    The source and destination regions must not overlap if they are located
      on the same page
    This call is ignored in text modes
SeeAlso: AX=00A4h,AX=00A5h,AX=00A9h
--------V-6200A7-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TESTMODE" - CHECK IF VIDEO MODE AVAILABLE
    AX = 00A7h
    BX = desired video mode (00h-17h, also 18h-1Dh after "FG_SVGAINIT")
    CX = required number of video pages (ignore memory size if <= 0)
Return: AX = status
        0000h mode not available with requested number of pages
        0001h mode is available
Note:    For FGDRIVER v1.10, this function was unused;"FG_TESTMODE" was AX=0002h
SeeAlso: AX=0005h,AX=0093h
--------V-6200A8-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TEXT" - DISPLAY STRING OF CHARACTERS
    AX = 00A8h
    CX = length of string
    ES:BX -> string
Notes:    For FGDRIVER v1.10, this function was unused; "FG_TEXT" was AX=0032h
    The string is displayed starting at the text cursor position using the
      current text attribute (text modes) or color index (graphics modes)
    The text cursor position is updated after this call
SeeAlso: AX=000Ch,AX=007Ch
--------V-6200A9-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_TRANSFER" - COPY REGION
    AX = 00A9h
    CX = source video page
    DX = destination video page
    ES:BX -> copy record (see #1871)
Notes:    For FGDRIVER v1.10, this function was unused;"FG_TRANSFER" was AX=005Ch
    The source and destination regions must not overlap if they are located
      on the same page
SeeAlso: AX=0083h,AX=0087h,AX=0089h,AX=00A6h

Format of FGDRIVER copy record:
Offset    Size    Description    (Table 1871)
 00h    WORD    left edge column of source region
 02h    WORD    right edge column of source region
 04h    WORD    top edge row of source region
 06h    WORD    bottom edge row of source region
 08h    WORD    left edge of destination
 0Ah    WORD    bottom edge of destination
--------V-6200AA-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_VOICE" - START SOUND
    AX = 00AAh
    BX = channel on TI sound chip
        1-3 = channels 1-3, 4 = channel 4 with periodic noise,
        5 = channel 4 with white noise
    CX = frequency in Hz (18-32767 for channels 1-3; 0=512 Hz, 1=1024 Hz,
          2=2048 Hz for channels 4 and 5)
    DX = volume
    SI = duration in clock ticks (continuous if <= 0)
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
Notes:    For FGDRIVER v1.10, this function was unused; "FG_VOICE" was AX=008Ah
    This function is only available on the PCjr and Tandy 1000 machines
SeeAlso: AX=006Ah,AX=009Dh,AX=00ABh
--------V-6200AB-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_VOICES" - PLAY SOUNDS IN BACKGROUND
    AX = 00ABh
    ES:BX -> tone array (see #1872)
    CX = number of times to repeat tone array
Notes:    For FGDRIVER v1.10, this function was unused; "FG_VOICES" was AX=008Bh
    This function is only available on the PCjr and Tandy 1000 machines
SeeAlso: AX=0048h,AX=006Bh,AX=009Eh,AX=00AAh

Format of FGDRIVER tone array element:
Offset    Size    Description    (Table 1872)
 00h    WORD    channel number (0000h terminates array)
 02h    WORD    frequency
 04h    WORD    volume
 06h    WORD    duration in 1/72.8 seconds
--------V-6200AC-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITFOR" - DELAY FOR SPECIFIED DURATION
    AX = 00ACh
    BX = duration in clock ticks
Return: after delay elapses
Note:    For FGDRIVER v1.10, this function was unused; "FG_WAITFOR" was AX=0096h
SeeAlso: AX=009Fh,INT 1A/AX=FF01h
--------V-6200AD-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITKEY" - FLUSH KEYBOARD BUFFER AND AWAIT KEY
    AX = 00ADh
Return: after next key pressed
Note:    For FGDRIVER v1.10, this function was unused; "FG_WAITKEY" was AX=006Dh
SeeAlso: AX=000Ah,AX=003Ah,AX=0051h,AX=0054h,INT 16/AH=00h
--------V-6200AE-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WAITVR" - ENABLE/DISABLE VERTICAL RETRACE WAIT
    AX = 00AEh
    BX = new state (0000h disabled, 0001h enabled)
Note:    For FGDRIVER v1.10, this function was unused; "FG_WAITVR" did not
      exist yet
--------V-6200AF-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_WHERE" - GET CURRENT CURSOR POSITION
    AX = 00AFh
    ES:BX -> variable pointers (see #1873)
Return: indicated variables filled with cursor row and column for active
      display
Note:    For FGDRIVER v1.10, this function was unused; "FG_WHERE" was AX=0034h
SeeAlso: AX=0045h,AX=0047h,AX=0055h,AX=0068h

Format of FGDRIVER variable pointers:
Offset    Size    Description    (Table 1873)
 00h    WORD    segment of WORD buffer for cursor row
 02h    WORD    offset of WORD buffer for cursor row
 04h    WORD    segment WORD buffer for cursor column
 06h    WORD    offset WORD buffer for cursor column
--------V-6200B0-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_XALPHA" - CONVERT SCREEN COLUMN TO CHAR COLUMN
    AX = 00B0h
    BX = screen space column
Return: AX = character space column containing specified coordinate
Note:    For FGDRIVER v1.10, this function was unused; "FG_XALPHA" was AX=000Ch
SeeAlso: AX=00B1h,AX=00B2h
--------V-6200B1-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_XCONVERT" - CONVERT CHAR COLUMN TO SCREEN COL
    AX = 00B1h
    BX = character space column
Return: AX = screen space column of leftmost pixel in specified character col
Note:    For FGDRIVER v1.10, this function was unused;"FG_XCONVERT" was AX=000Eh
SeeAlso: AX=00B0h,AX=00B3h
--------V-6200B2-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_YALPHA" - CONVERT SCREEN ROW TO CHARACTER ROW
    AX = 00B2h
    BX = screen space row
Return: AX = character space row containing specified coordinate
Note:    For FGDRIVER v1.10, this function was unused; "FG_YALPHA" was AX=000Dh
SeeAlso: AX=00B0h,AX=00B3h
--------V-6200B3-----------------------------
INT 62 u - FGDRIVER v3.03 - "FG_YCONVERT" - CONVERT CHARACTER ROW TO SCREEN ROW
    AX = 00B3h
    BX = character space row
Return: AX = screen space row of topmost pixel in specified character row
Program: FGDRIVER is the external video driver for the shareware
      Fastgraph/Light by Ted Gruber Software
Note:    For FGDRIVER v1.10, this function was unused;"FG_YCONVERT" was AX=000Fh
SeeAlso: AX=00B1h,AX=00B2h
--------T-6201-------------------------------
INT 62 - Cswitch - GIVE UP REST OF TIME-SLICE
    AH = 01h
Program: Cswitch is a set of multitasking functions by Herb Rose
SeeAlso: AH=05h"Cswitch",AH=06h"Cswitch",INT 15/AX=1000h,INT 2F/AX=1680h
--------N-6201-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - NOP for ETHDEV.ODI
    AH = 01h
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6202-------------------------------
INT 62 - Cswitch - WAIT FOR SEMAPHORE
    AH = 02h
    DX = semaphore number (0-63)
Return: AX = FFFFh bad semaphore number
         else  success
SeeAlso: AH=03h"Cswitch",AH=04h"Cswitch"
--------N-6202-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - INITIALIZE
    AH = 02h
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=00h"ETHDEV",AH=03h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6203-------------------------------
INT 62 - Cswitch - CHECK SEMAPHORE
    AH = 03h
    DX = semaphore number (0-63)
Return: AX = status
        FFFFh not owned
        else  owned
SeeAlso: AH=02h,AH=04h
--------N-6203-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET REAL IP ADDRESS
    AH = 03h
    DS:SI -> DWORD buffer for IP address
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6204-------------------------------
INT 62 - Cswitch - TRIGGER SEMAPHORE
    AH = 04h
    DX = semaphore number (0-63)
Return: AX = status
        FFFFh bad semaphore number
        else  success
SeeAlso: AH=02h"Cswitch",AH=03h"Cswitch"
--------N-6204-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - SET ???
    AH = 04h
    BX = ???
    ES:SI -> FAR routine for ???
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6205-------------------------------
INT 62 - Cswitch - SLEEP
    AH = 05h
    BX = seconds to sleep
SeeAlso: AH=01h"Cswitch",AH=06h"Cswitch",AH=08h"Cswitch"
--------N-6205-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 05h
    ???
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6206-------------------------------
INT 62 - Cswitch - SUSPEND
    AH = 06h
SeeAlso: AH=05h"Cswitch",AH=08h"Cswitch"
--------N-6206-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 06h
    ???
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6207-------------------------------
INT 62 - Cswitch - SPAWN
    AH = 07h
    ES:BX -> function address to start executing at
    CX = priority (1-10)
Return: AX = result/status
        FFFDh  no free memory control blocks
        FFFEh  no free task control blocks
        FFFFh  not enough memory to create new task stack
        >0       the tcb number of the new task, indicating no error
SeeAlso: AH=0Fh"Cswitch",AH=10h"Cswitch"
--------N-6207-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 07h
    DS:SI -> ???
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6208-------------------------------
INT 62 - Cswitch - WAKE UP TASK
    AH = 08h
    BX = tcb identifier
SeeAlso: AH=05h,AH=06h
--------N-6208-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 08h
    CX = ???
    ES:SI -> ??? buffer (see #1874)
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"

Format of BW-TCP ??? buffer:
Offset    Size    Description    (Table 1874)
 00h  6 BYTEs    hardware address???
 06h  6 BYTEs    ???
 0Ch    WORD    ???
 0Eh    WORD    ???
----------6208--CXFFFE-----------------------
INT 62 - MS SQL Server/Sybase DBLIBRARY interface - UNINSTALL/GET PSP ADDR
    AH = 08h
    CX = FFFEh
    DX = FFFFh
Return: AX = PSP address of resident DBLIBRARY
Note:    this call does not free the memory allocated to the TSR; the calling
      code must do the deallocation.
SeeAlso: INT 62"DBLIBRARY"
--------T-6209-------------------------------
INT 62 - Cswitch - SET PRIORITY
    AH = 09h
    BX = new base priority (1-10)
Note:    the lower the priority is numerically, the more often the task will run
--------N-6209-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - HOOK TIMER INTERRUPT
    AH = 09h
Return: CF clear if successful
        AX = handler ID
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Ah"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620A-------------------------------
INT 62 - Cswitch - TEST MESSAGE QUEUE
    AH = 0Ah
    DX = queue number (0-63)
Return: AX = result/message size
        0000h nothing on queue
        FFFFh bad queue number
        else  number of bytes in first message in queue
SeeAlso: AH=0Bh"Cswitch",AH=0Ch"Cswitch"
--------N-620A-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - UNHOOK TIMER INTERRUPT
    AH = 0Ah
    DX = handler ID
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=09h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620B-------------------------------
INT 62 - Cswitch - SEND MESSAGE
    AH = 0Bh
    CX = number of bytes to write
    DS:SI -> buffer
    DX = queue number (0-63)
Return: AX = result/message size
        0000h no message was on queue
        FFFEh triggered by something arriving, redo the call
        FFFFh bad queue number
        else  number of bytes in message
SeeAlso: AH=0Ah"Cswitch",AH=0Ch"Cswitch"
--------N-620B-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ADD ???
    AH = 0Bh
    AL = ???
    DX = ???
    BP = ???
    ES:SI -> ???
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=0Ch"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620C-------------------------------
INT 62 - Cswitch - READ MESSAGE
    AH = 0Ch
    CX = number of bytes to read
    DS:SI -> buffer
    DX = queue number (0-63)
Return: AX = status
        FFFFh bad queue number
        else  number of bytes transferred
SeeAlso: AH=0Ah,AH=0Bh
--------N-620C-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - REMOVE ???
    AH = 0Ch
    DX = ???
    BP = ???
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Bh"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP"
SeeAlso: INT 64"BW-NFS"
--------T-620D-------------------------------
INT 62 - Cswitch - DON'T ALLOW TASK TO BE SWAPPED OUT
    AH = 0Dh
SeeAlso: AH=0Eh"Cswitch"
--------N-620D-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - NOP for ETHDEV.ODI
    AH = 0Dh
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-620E-------------------------------
INT 62 - Cswitch - ALLOW TASK TO BE SWAPPED OUT
    AH = 0Eh
SeeAlso: AH=0Dh"Cswitch"
--------N-620E-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - BEGIN CRITICAL SECTION
    AH = 0Eh
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=0Fh"ETHDEV",AH=10h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-620F-------------------------------
INT 62 - Cswitch - LOAD AND RUN PROGRAM FROM DISK
    AH = 0Fh
    ES:BX -> command line
    CX = priority (1-10)
    DX = background flag (nonzero allows loading to EMS)
Return: AX = status
        0000h task loader queue is full
        0001h  no error
SeeAlso: AH=07h"Cswitch",AH=10h"Cswitch",AH=13h"Cswitch"
--------N-620F-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - END CRITICAL SECTION
    AH = 0Fh
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=0Eh"ETHDEV",AH=10h"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6210-------------------------------
INT 62 - Cswitch - TERMINATE SPAWNED PROGRAM
    AH = 10h
SeeAlso: AH=07h"Cswitch",AH=0Fh"Cswitch"
--------N-6210-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - QUERY CRITICAL SECTION
    AH = 10h
Return: CF clear if no critical section active
    CF set if in critical section
SeeAlso: AH=0Eh"ETHDEV",AH=0Fh"ETHDEV",AH=FEh,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6211-------------------------------
INT 62 - Cswitch - GET TCB INFORMATION
    AH = 11h
    ES:BX -> a pointer which will be set to the tcb address
Return: AX = tcb indentifier
SeeAlso: AH=12h
--------N-6211-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - SET ???
    AH = 11h
    ES:SI -> ???
Return: CF clear
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6212-------------------------------
INT 62 - Cswitch - GET TCB ADDRESS
    AH = 12h
    ES:BX -> a pointer which will be set to the tcb table address
Return: AX = tcb indentifier
SeeAlso: AH=11h"Cswitch"
--------N-6212-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET SOCKET NUMBER???
    AH = 12h
Return: CF clear if successful
        AX = socket number??? (memory variable incremented after reading)
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------T-6213-------------------------------
INT 62 - Cswitch - CHECK STATUS OF PREVIOUS LOAD_TASK
    AH = 13h
Return: AX = result
        FFFCh no Memory Control Blocks available
        FFFDh no TCBs available
        FFFEh insufficient memory
        FFFFh cannot open file
        0000h load in progress (not done yet)
        else  tcb indentifier
SeeAlso: AH=0Fh
--------N-6213-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 13h
    CX = ???
Return: CF clear if successful
        AL = 00h
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6214-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 14h
    ES:SI -> ???
Return: CF clear if successful
        AL = 00h
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6215-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET ???
    AH = 15h
Return: CF clear if successful
        AX = ??? (destroyed???)
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Notes:    call this function after reading the "ETHDEV27" device
    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6216-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 16h
    ???
Return: CF clear if successful
    CF set on error
        AL = error code
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6217-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ???
    AH = 17h
    DX = segment of ???
Return: CF clear
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------N-6218-------------------------------
INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ALLOCATE AND MAP EMS FOR DRIVER
    AH = 18h
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Notes:    calls function 17h after EMS allocated and mapped
    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=FEh,INT 21/AH=3Fh"BW-TCP",INT 63"BW-TCP",INT 64"BW-NFS"
--------R-6247-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 47h
    AL = subfunction (00h-31h)
    ???
    CF set
Return: ???
Program: COMMUTE is a remote-control program bundled with Central Point
      Software's PC Tools
--------R-6248-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 48h
    AL = ???
    ???
    CF set
Return: ???
--------R-6249-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 49h
    ???
    CF set
Return: ???
Note:    may be the same as AH=4Ch
--------R-624A-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 4Ah
    AL = subfunction (00h-46h)
    ???
    CF set
Return: ???
--------R-624B--BX1234-----------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 4Bh
    BX = 1234h
    CX = 1234h
    ES = ???
    CF set
Return: ???
Program: COMMUTE is a remote-control program bundled with Central Point
      Software's PC Tools
--------R-624C-------------------------------
INT 62 - PC Tools v7 COMMUTE - ???
    AH = 4Ch
    BL = subfunction
        00h ???
        02h ???
Return: CF clear if successful
    CF set on error
--------R-626262-----------------------------
INT 62 - PC Tools v7 COMMUTE - INSTALLATION CHECK
    AX = 6262h
    CF set
Return: AX = 0000h
    BX = segment of resident code's PSP
Program: COMMUTE is a remote-control program bundled with Central Point
      Software's PC Tools
--------N-62FE-------------------------------
INT 62 - BW-TCP - ETHDRV.SYS - MAP EMS PAGE FRAME
    AH = FEh
    AL = direction
        00h map in driver's memory block
        01h map out driver's memory block
Return: CF clear if successful
    CF set on error
        AL = error code
Range:    INT 60 to INT 65 ???
Notes:    this function is supported by at least the SLIP and ODI versions of
      ETHDEV.SYS
    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: INT 21/AH=3Fh"BW-TCP",INT 62/AH=00h"ETHDEV",INT 62/AH=18h"ETHDEV"
SeeAlso: INT 63"BW-TCP",INT 64/AH=FEh
--------*-63---------------------------------
INT 63 - reserved for user interrupt
--------d-63---------------------------------
INT 63 - Adaptec and OMTI controllers - DRIVE 0 DATA
Desc:    this vector stores the last four bytes of the parameter table for
      hard disk 0
SeeAlso: INT 60"Adaptec",INT 61"Adaptec",INT 62"Adaptec",INT 64"Adaptec"
----------63---------------------------------
INT 63 - Oracle SQL Protected Mode Executive - ???
--------d-63---------------------------------
INT 63 - 4+Power FLOPPY CONTROLLER - ORIGINAL INT 13/40
Desc:    the "4+Power" quad floppy controller BIOS hooks INT 13 (or INT 40 if
      INT 13 has been moved there) and places the old value here
----------63---------------------------------
INT 63 - Kofax KF9X00 image manipulation card interface
--------Q-63---------------------------------
INT 63 - DESQview/X - SOCKET API
Notes:    parameters are passed by patching!! data field immediately following
      the entry point, as detailed below; the preferred method for calling
      the socket API is via INT 15/AX=DE2Eh
    the installation check consists of testing for the string "dvxunix"
      (yes, lowercase) at offset 9 from the interrupt handler start
SeeAlso: INT 15/AX=DE2Eh,INT BE"DESQview"
Index:    installation check;DESQview/X socket interface

Format of DESQview/X socket interrupt handler entry:
Offset    Size    Description    (Table 1875)
 00h  3 BYTEs    near jump or short jump + NOP to actual interrupt handler
 03h    WORD    offset from following pointer for initial top of local stack
 05h    DWORD    pointer to argument/stack block (see INT 15/AX=DE2Eh)
 09h  7 BYTEs    signature "dvxunix"
--------b-6300-------------------------------
INT 63 - HP 100LX - MAP HIGH MEMORY
    AH = 00h
    AL = physical page (00h seg C000, 01h seg C400h, ...)
    BX = zero-based logical page
    CX = page number
    DX = device ID (00h system ROM, 05h plugin, etc.)
Return: ???
SeeAlso: AH=01h
--------N-6300-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET IP ADDRESS???
    AH = 00h
    DS:BX -> DWORD containing IP address (big-endian)
Return: CF clear if successful
    CF set on error
    AX destroyed
Range:    INT 61 to INT 66 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=01h"BW-TCP",AH=02h"BW-TCP"
--------b-6301-------------------------------
INT 63 - HP 100LX - SAVE/RESTORE MEMORY MAP
    AH = 01h
    AL = function (00h save, 01h restore)
    ???
Return: ???
--------N-6301-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 01h
    ES:BX -> ???
    ???
Return: ???
Range:    INT 61 to INT 66 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: AH=00h"BW-TCP",AH=02h"BW-TCP"
--------N-6302-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 02h
    ???
Return: ???
SeeAlso: AH=00h"BW-TCP",AH=01h"BW-TCP"
--------N-6303-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET IP ADDRESS
    AH = 03h
    DS:SI -> buffer for DWORD IP address (big-endian)
Return: AX destroyed
    CF clear if successful
    CF set on error
Note:    this call may use ARP or RARP to determine the address
--------N-6304-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 04h
    ???
Return: ???
--------N-6305-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 05h
    DS:BX -> ???
    ES:SI -> ???
Return: ???
Range:    INT 61 to INT 66 ???
--------N-6306-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 06h
    ???
Return: ???
--------N-6307-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 07h
    ???
Return: ???
--------N-6308-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET DEFAULT ??? HANDLER
    AH = 08h
    DS:BX -> DWORD containing IP address
Return: CF clear if successful
    CF set on error
    ???
--------N-6309-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - INSTALL ??? HANDLERS
    AH = 09h
    BL = handler type
    ES:SI -> FAR handler of specified type
Return: ???
SeeAlso: AH=0Ah,AH=0Dh
--------N-630A-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - DELETE ??? HANDLERS
    AH = 0Ah
    BL = handler type
Return: CF clear if successful
    CF set on error (no handler of specified type installed)
SeeAlso: AH=09h
--------N-630B-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 0Bh
    AL = ???
    DL = ???
    DS:BX -> ???
    ES:SI -> ???
Return: ???
--------N-630C-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 0Ch
    ???
Return: ???
Range:    INT 61 to INT 66 ???
--------N-630D-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - INSTALL DEFAULT ??? HANDLER
    AH = 0Dh
    ???
Return: ???
Note:    if not already installed, installs a type 06h handler with AH=09h
SeeAlso: AH=09h
--------N-630E-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - CLOSE NETWORK DESCRIPTOR
    AH = 0Eh
    ???
Return: ???
SeeAlso: INT 61/AH=08h"PC/TCP",INT 61/AH=09h"PC/TCP",INT 61/AH=18h
--------N-630F-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 0Fh
    AL = ???
    SI = ???
    DS:DI -> ???
    ???
Return: ???
Range:    INT 61 to INT 66 ???
--------N-6310-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 10h
    DS:DI -> ???
    ???
Return: ???
--------N-6311-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 11h
    ???
Return: ???
--------N-6312-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - LISTEN FOR INCOMING CONNECTIONS
    AH = 12h
    DS:SI -> ???
    ES:BP -> ???
Return: ???
SeeAlso: INT 61/AH=23h
--------N-6313-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - NOP
    AH = 13h
Return: nothing
Range:    INT 61 to INT 66 ???
--------N-6314-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - OPEN NETWORK CONNECTION
    AH = 14h
    BX = network descriptor???
    DS:SI -> ???
    ES:BP -> ???
Return: ???
SeeAlso: INT 61/AH=13h"PC/TCP",INT 62/AH=13h"ETHDEV"
--------N-6315-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 15h
    DS:DI -> ???
    ???
Return: ???
--------N-6316-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - RESET NETWORK CONNECTION
    AH = 16h
    DS:DI -> ???
Return: ???
Note:    calls AH=17h after preprocessing
SeeAlso: AH=17h,INT 61/AH=19h"PC/TCP"
--------N-6317-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 17h
    DS:DI -> ???
    ???
Return: ???
Range:    INT 61 to INT 66 ???
SeeAlso: AH=18h
--------N-6318-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 18h
    DS:DI -> ???
    ???
Return: ???
Note:    same as AH=17h, except performed with interrupts disabled
SeeAlso: AH=17h
--------N-6319-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - WRITE TO THE NETWORK
    AH = 19h
    DS:DI -> ???
    ???
Return: BX = number of bytes NOT written
    ???
Note:    calls AH=17h with interrupts disabled and ??? set to 01h
SeeAlso: AH=1Ah,AH=1Bh,INT 61/AH=1Ah"PC/TCP"
--------N-631A-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - READ FROM THE NETWORK
    AH = 1Ah
    CX = maximum number of bytes to read
    ES:BP -> ???
    ???
Return: CX = number of bytes actually read
    ???
SeeAlso: AH=19h,INT 61/AH=1Bh"PC/TCP"
--------N-631B-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 1Bh
    CX = ???
    ES:BP -> ???
Return: DX = ???
    ???
Range:    INT 61 to INT 66 ???
--------N-631C-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 1Ch
    DS:DI -> ???
    ???
Return: ???
Note:    calls AH=17h with ???
SeeAlso: AH=17h
--------N-631D-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 1Dh
    ???
Return: ???
--------N-631E-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 1Eh
    DS:BX -> DWORD containing IP address (big-endian)
    ???
Return: CF clear if successful
    CF set on error
    ???
--------N-631F-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET SOCKET ??? HANDLER
    AH = 1Fh
    BX = socket number
    ES:SI -> FAR function for ???
Return: CF clear if successful
    CF set on error (out of slots)
SeeAlso: AH=20h
--------N-6320-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - REMOVE SOCKET ??? HANDLER
    AH = 20h
    BX = socket number
Return: CF clear if successful
    CF set on error (not set)
Range:    INT 61 to INT 66 ???
SeeAlso: AH=1Fh
--------N-6321-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 21h
    ES:SI -> ???
Return: ???
SeeAlso: INT 61/AH=1Ch"PC/TCP"
--------N-6322-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - REMOVE ??? HANDLER
    AH = 22h
Return: CF clear
Note:    decrements a counter if not already zero, and calls AH=0Ah with BL=11h
      if the counter reaches zero
--------N-6323-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 23h
    DS:BX -> ???
    ES:SI -> 6-byte buffer for ???
Return: CF clear if successful
    CF set on error
--------N-6324-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET SOCKET
    AH = 24h
Return: AX = socket number (0400h-FFFFh)
Range:    INT 61 to INT 66 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
SeeAlso: INT 62/AH=12h"ETHDEV",INT 64"BW-NFS"
--------N-6325-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - GET INTERNET ADDRESS
    AH = 25h
Return: CL:CH:DL:DH = caller's Internet address
SeeAlso: AH=26h,INT 61/AH=05h"PC/TCP"
--------N-6326-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET INTERNET ADDRESS???
    AH = 26h
    CL:CH:DL:DH = Internet address
Return: nothing
Note:    this function sets a different variable than AH=25h returns
SeeAlso: AH=25h
--------N-6327-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - SET ???
    AH = 27h
    BX = ???
    ES:SI -> ???
Return: ???
--------N-6328-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 28h
    ???
Return: ???
--------N-6329-------------------------------
INT 63 - BW-TCP - TCPIP.SYS - ???
    AH = 29h
    ???
Return: ???
Range:    INT 61 to INT 66 ???
Note:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
--------*-64---------------------------------
INT 64 - reserved for user interrupt
--------d-64---------------------------------
INT 64 - Adaptec controllers - DRIVE 1 DATA
Desc:    this vector stores the first four bytes of the parameter table for
      hard disk 1
Notes:    these vectors are used by the following Adaptec controllers:
        ACB 2370 A/B/C, ACB 2372 A/B/C, ACB 2333 A/B, 2322B-8, 2322B-16
    these vectors are NOT used by the following Adaptec controllers:
        ACB 2310, ACB 2312, ACB 2320D, ACB 2322D
SeeAlso: INT 60"Adaptec",INT 65"Adaptec",INT 66"Adaptec",INT 67"Adaptec"
----------64---------------------------------
INT 64 - Oracle SQL Protected Mode Executive - ???
--------N-64---------------------------------
INT 64 - Novell NetWare to v2.0a - LOW-LEVEL API
Note:    equivalent to INT 7A for NetWare versions through 2.0a only; later
      versions do not use this interrupt for IPX/SPX access, instead
      getting an entry point from INT 2F/AX=7A00h
SeeAlso: INT 2F/AX=7A00h,INT 7A"Novell"
--------h-64---------------------------------
INT 64 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 65"DG10",INT 66"DG10"
--------r-64---------------------------------
INT 64 - Extended Batch Language v3.14+
    AH = function
        00h to 5Fh chained to previous handler
        60h to 6Ch reserved, return immediately
        80h to FFh chained to previous handler
        6Dh (v4.01+) insert tone in queue
        AL = ???
        CX = frequency in Hertz
        DL = duration in clock ticks
        Return: AL = 00h if note stored
               = 01h if no room to store
        6Eh clear ??? counter/flag
        6Fh return counter/flag that AH=6Eh clears
        70h ???
        AL = ???
        71h ???
        AL = ???
        72h ???
        73h insert byte at end of keyboard buffer
        AL = byte to insert
        Return: AL = 00h if byte inserted
               = 01h if no room to store
        74h insert byte at front of keyboard buffer
        AL = byte to insert
        Return: AL = 00h if byte inserted
               = 01h if no room to store
        75h ???
        76h get keyboard "stack" status
        AL = 'K' if kbd read will read physical keyboard
             'S' if it will read EBL internal keyboard buffer
        AH = ???
        77h clear internal keyboard buffer
        78h ???
        AL = ???
        79h ???
        7Ah ???
        AL = ???
        7Bh ???
        AL = ???
        7Ch ???
        AL = ???
        7Dh ???
        AL = ???
        7Eh clear buffer for ???
        7Fh installation check
        Return: CX = version in BCD
            DI = segment of ???
            BX = segment of next program's PSP???
Program: Extended Batch Language is a batch-file enhancer by Seaware
Notes:    the chaining does not check whether the interrupt had been hooked
      before, so if you try to chain when the previous vector was
      0000h:0000h, you'll be in trouble
    functions 72h and 7Ah-7Dh appear to be interfaces to the optional
      floating-point and extended function packages
Index:    installation check;EBL|installation check;Extended Batch Language
--------d-64---------------------------------
INT 64 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
Note:    This vector is overwritten by Pdisk to install custom harddrive types.
      It can either destroy 4 vectors and take no memory or TSR and take
      up some memory.
SeeAlso: INT 65"Pdisk"
--------N-6401-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
    AH = 01h
    ES:BX -> ??? (at least 8 bytes)
    ES:BP -> DWORD ???
    ???
Return: CF clear if successful
        ???
    CF set on error
        CX = 0000h
Range:    INT 62 to INT 67 ???
Notes:    the Beame&Whiteside TCP/IP protocol stack uses two consecutive
      interrupts (62h and 63h by default); the BW-NFS client uses a third
      consecutive interrupt (64h by default) if it is loaded
    the BWRPC installation check consists of determining the interrupt
      vector assigned to it (two more than the value returned by reading
      the ETHDEV27 device), and testing whether the word immediately
      preceding the interrupt handler is 4257h ('BW')
SeeAlso: INT 62/AH=00h"ETHDEV",INT 63"BW-TCP"
Index:    installation checks;BWRPC
--------N-6402-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
    AH = 02h
    DS:DI -> ???
Return: ???
Note:    this call is passed directly through to INT 62/AH=07h
SeeAlso: INT 62/AH=07h"ETHDEV"
--------N-6403-------------------------------
INT 64 U - BW-NFS - BWRPC - ADD ???
    AH = 03h
    AL = ???
    BP = ???
    ES:SI -> ???
Return: ???
Note:    this call is passed directly through to INT 62/AH=0Bh
SeeAlso: AH=04h,INT 62/AH=0Bh"ETHDEV"
--------N-6404-------------------------------
INT 64 U - BW-NFS - BWRPC - REMOVE ???
    AH = 04h
    BP = ???
Return: ???
Range:    INT 62 to INT 67 ???
Note:    this call is passed directly through to INT 62/AH=0Ch
SeeAlso: AH=03h,INT 62/AH=0Ch"ETHDEV"
--------N-6405-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
    AH = 05h
    CX = ???
Return: ???
Note:    this call is passed directly through to INT 62/AH=13h
SeeAlso: INT 62/AH=13h"ETHDEV"
--------N-6406-------------------------------
INT 64 U - BW-NFS - BWRPC - ???
    AH = 06h
    ES:SI -> ???
Return: AL = 00h if CF clear
Note:    this call is passed directly through to INT 62/AH=14h
SeeAlso: INT 62/AH=14h"ETHDEV"
--------N-6407-------------------------------
INT 64 U - BW-NFS - BWRPC - GET IP ADDRESS
    AH = 07h
Return: CX:DX = IP address
--------N-6410-------------------------------
INT 64 U - BW-NFS - BWRPC - CALL ETHDEV.SYS
    AH = 10h
    AL = ETHDEV function number
    other registers as appropriate for ETHDEV call
Return: as returned by ETHDEV
Note:    this call is passed directly through to INT 62
SeeAlso: INT 62/AH=00h"ETHDEV"
--------N-6411-------------------------------
INT 64 U - BW-NFS - BWRPC - NOP???
    AH = 11h
Return: CF clear
Range:    INT 62 to INT 67 ???
--------N-64FE-------------------------------
INT 64 - BW-NFS - BWRPC - MAP EMS PAGE FRAME
    AH = FEh
    AL = direction
        00h map in driver's memory block
        01h map out driver's memory block
Return: CF clear if successful
    CF set on error
        AL = error code
Note:    this call is passed through directly to ETHDEV.SYS (see INT 62/AH=FEh)
SeeAlso: INT 21/AH=3Fh"BW-TCP",INT 62/AH=FEh,INT 63"BW-TCP"
--------*-65---------------------------------
INT 65 - reserved for user interrupt
--------d-65---------------------------------
INT 65 - Adaptec controllers - DRIVE 1 DATA
Desc:    this vector stores the second four bytes of the parameter table for
      hard disk 1
SeeAlso: INT 64"Adaptec",INT 66"Adaptec",INT 67"Adaptec"
--------h-65---------------------------------
INT 65 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 64"DG10",INT 66"DG10"
--------N-65---------------------------------
INT 65 - FTP Software NDIS-Packet Driver adapter - POST PROCESSING INTERRUPT
--------U-65---------------------------------
INT 65 - SD.COM v6.2
Desc:    The unregistered version of SD62.COM uses the low byte of this vector
      to count the number of invocations, displaying a registration
      reminder each time after the 20th use.
--------d-65---------------------------------
INT 65 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 66"Pdisk"
--------s-65---------------------------------
INT 65 - Ad Lib SOUND.COM - INTERFACE
    SI = function number (see also entries below)
        0000h Init
        0002h RelTimeStart
        0003h SetState
        0004h GetState
        0005h Flush
        0006h SetMode
        0007h GetMode
        0008h SetRelVolume
        0009h SetTempo
        000Ah SetTranspose
        000Bh GetTranspose
        000Ch SetActVoice
        000Dh GetActVoice
        000Eh PlayNoteDel
        000Fh PlayNote
        0010h SetTimbre
        0011h SetPitch
        0012h SetTickBeat
        0013h NoteOn
        0014h NoteOff
        0015h Timbre
        0016h SetPitchBend
        0017h WaveForm
    ES:BX -> arguments
Note:    the installation check consists of checking for the signature block
      immediately preceding the interrupt handler (see #1876)
SeeAlso: SI=8000h
Index:    installation check;Ad Lib SOUND.COM

Format of AdLib signature block:
Offset    Size    Description    (Table 1876)
 00h    WORD    version number
 02h 19 BYTEs    "SOUND-DRIVER-AD-LIB"
 15h    BYTE    01h
 16h    BYTE    01h
 17h    BYTE    00h
--------s-65----SI0000-----------------------
INT 65 - Ad Lib SOUND.COM - INITIALIZE (RESET)
    SI = 0000h
--------s-65----SI0003-----------------------
INT 65 - Ad Lib SOUND.COM - SET STATE
    SI = 0003h
    ES:BX -> WORD new state (0000h disabled, 0001h enabled)
SeeAlso: SI=0004h
--------s-65----SI0004-----------------------
INT 65 - Ad Lib SOUND.COM - GET STATE
    SI = 0004h
Return: AX = status
        0000h all done playing sounds
        else  still playing sounds
SeeAlso: SI=0003h
--------s-65----SI0006-----------------------
INT 65 - Ad Lib SOUND.COM - SET MODE
    SI = 0006h
    ES:BX -> WORD new mode (0000h melodic, 0001h percussive)
SeeAlso: SI=0007h
--------s-65----SI0007-----------------------
INT 65 - Ad Lib SOUND.COM - GET MODE
    SI = 0007h
Return: AX = mode
        0000h melodic
        0001h percussive
SeeAlso: SI=0006h
--------s-65----SI000C-----------------------
INT 65 - Ad Lib SOUND.COM - SET ACTIVE VOICE
    SI = 000Ch
    ES:BX -> WORD voice = 0000h to 0008h
SeeAlso: SI=000Dh
--------s-65----SI000D-----------------------
INT 65 - Ad Lib SOUND.COM - GET ACTIVE VOICE
    SI = 000Dh
Return: AX = voice (0000h to 0008h)
SeeAlso: SI=000Ch
--------s-65----SI8000-----------------------
INT 65 u - Media Vision FM.COM v4.1a+ - GET INTERNAL DATA STRUCTURES
    SI = 8000h
Return: DX:AX -> internal data structures
Program: FM.COM is an Ad Lib SOUND.COM-compatible driver for Media Vision's
      Pro Audio Spectrum sound boards
SeeAlso: SI=8001h
--------s-65----SI8001-----------------------
INT 65 u - Media Vision FM.COM v4.1a+ - GET VOICE COUNT
    SI = 8001h
Return: AX = ???
    DX = number of voices??? (09h or 0Bh)
SeeAlso: SI=8000h
--------s-65----SI8002-----------------------
INT 65 - Media Vision FM.COM v4.1a+ - START BACKGROUND FM SOUNDS
    SI = 8002h
SeeAlso: SI=8003h
--------s-65----SI8003-----------------------
INT 65 - Media Vision FM.COM v4.1a+ - STOP BACKGROUND FM SOUNDS
    SI = 8003h
SeeAlso: SI=8002h
--------s-65----SI8004-----------------------
INT 65 U - Media Vision FM.COM v4.1a+ - GET ???
    SI = 8004h
Return: AX = ??? (0280h)
    DX = ??? (01A0h)
--------s-65----SI8005-----------------------
INT 65 U - Media Vision FM.COM v4.1a+ - ???
    SI = 8005h
    ???
Return: ???
SeeAlso: SI=8000h
--------S-65---------------------------------
INT 65 U - EZRECV v1.0 - API
    AX = function
        0000h ???
        Return: AX = ??? or FFFFh
        0001h ???
        Return: AX = status (0000h or 0001h)
        0002h ???
        Return: AX = status (0000h or 0001h)
        0003h set ??? to 0001h
        Return: AX = 0000h
        0004h ???
        Return: AX = ???
Return: BH = COM port being used
    BL = speed???
    CH = ???
    CL = ???
    DX = ???
    DS = ???
    ES = EZRECV data segment
Program: EZRECV is a background Zmodem file receiver by Express Consulting
--------*-66---------------------------------
INT 66 - reserved for user interrupt
--------d-66---------------------------------
INT 66 - Adaptec controllers - DRIVE 1 DATA
Desc:    this vector stores the third four bytes of the parameter table for
      hard disk 1
SeeAlso: INT 64"Adaptec",INT 65"Adaptec",INT 67"Adaptec"
--------h-66---------------------------------
INT 66 - Data General DG10 - MicroECLIPSE COPROCESSOR INTERFACE
SeeAlso: INT 64"DG10"
--------N-66---------------------------------
INT 66 C - Nanosoft, Inc. TurboNET - NETWORK PROCESSING ???
Program: TurboNET is a NetBIOS-based file redirector and server
Note:    hooked but not used (IRET) by both redirector and server; called from
      server's INT 28 handler
SeeAlso: INT 2F/AX=8100h
--------d-66---------------------------------
INT 66 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 67"Pdisk"
--------W-66---------------------------------
INT 66 - Microsoft Windows VITD.386 Virtual Interval Timer
Note:    This Windows 3.x Virtual Device Driver implements a virtual timer
      which will expire and call INT 66.  This timer can be used to
      calculate elapsed execution time etc.
--------K-66---------------------------------
INT 66 - Newkey v5.4 - INSTALLATION VECTOR
Return: immediately (IRET)
Program: Newkey is a shareware keyboard macro program by Frank A. Bell
Range:    INT 60h to INT 67h, selected by scanning for highest unused vector
Note:    the installation check consists of testing for the signature bytes
      FDh FCh FFh FEh at offset 03h in the interrupt handlers segment
BUG:    the code obviously intends to use INT F0-FE, INT 70-77, and INT 68-6F
      before falling back to INT 60-67, but only uses the last of these
      ranges in v5.4
SeeAlso: INT 2F/AX=E300h
Index: installation checks;Newkey|Newkey;installation check
--------F-6601-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
    AH = 01h
SeeAlso: AH=02h
--------F-6602-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
    AH = 02h
SeeAlso: AH=01h
--------F-6603-------------------------------
INT 66 - BitFax Scheduler - SCHEDULE FAX TRANSMISSIONS
    AH = 03h
    ???
Return: ???
SeeAlso: AH=05h
--------F-6604-------------------------------
INT 66 - BitFax Scheduler - GET STATUS???
    AH = 04h
Return: AX = ??? (0000h or 0001h)
    DX = BitSched version???  (for versions >= 3.00)
        9796h (ver. 3.00)
        97E6h (ver. 3.02)
        92D0h (ver. 3.04.06)
        9510h (ver. 3.06.02)
SeeAlso: AH=06h,AX=3345h,INT 2F/AX=8000h"FaxBIOS"
--------F-6605-------------------------------
INT 66 - BitFax Scheduler - CONVERT FILE AND SEND FAX
    AH = 05h
    BX:CX -> command block (see #1877)
    ???
Return: ???
SeeAlso: AH=03h

Format of BitFax command block:
Offset    Size    Description    (Table 1877)
 00h 18 BYTEs    configuration bytes???
 12h    BYTEs    ASCIZ temporary file name to place converted fax
 52h    BYTEs    ASCIZ directory containing BitFax executables
 92h    BYTEs    ASCIZ telephone number
 C2h    BYTE    cover page control (00h don't send, 01h do send cover page)
 C3h 15 BYTEs    configuration bytes???
 E2h    BYTEs    ASCIZ path of BITFAX.TRA file (containing additional
          configuration information???)
122h    BYTEs    configuration bytes???
12Ch    BYTE    00h don't send cover page
        01h send cover page
12Dh  7 BYTEs    configuration bytes???
134h    BYTEs    ASCIZ path of file to send
174h    BYTEs    more configuration bytes???
    ???
--------F-6606-------------------------------
INT 66 - BitFax Scheduler - SET MODE???
    AH = 06h
Return: DX = BitSched version??? (same as AH=04h)
SeeAlso: AH=04h
--------s-660688-----------------------------
INT 66 - IBMSND driver - PLAY 8-BIT DIGITIZED SOUND
    AX = 0688h
    DS:SI -> SNDSTRUC (see #1878)
Return: ???
Program: The IBMSND driver is part of John W. Ratcliff's
       The IBM Digitized Sound Package
Note:    the installation check consists of looking for a valid signature
      string six bytes prior to the interrupt handler; this string may
      be either "KERN" or "MIDI" (in the latter case, call AX=0701h to
      determine whether IBMSND is installed)
SeeAlso: AX=068Bh,AX=068Fh,AX=0701h

Format of IBMSND driver SNDSTRUC:
Offset    Size    Description    (Table 1878)
 00h    DWORD    -> audio data
 04h    WORD    length of audio data in bytes
 06h    DWORD    -> playback status flag
 0Ah    WORD    playback frequency
--------s-660689-----------------------------
INT 66 - IBMSND driver - REPORT SOUND DRIVER STATUS
    AX = 0689h
Return: AX = status
        0000h no sound playing
        0001h sound effect is currently playing
SeeAlso: AX=0688h,AX=068Bh,AX=068Ch
--------s-66068A-----------------------------
INT 66 - IBMSND driver - PREFORMAT SOUND
    AX = 068Ah
    DS:SI -> SNDSTRUC (see #1878)
Desc:    convert audio data into output hardware format
SeeAlso: AX=068Bh
--------s-66068B-----------------------------
INT 66 - IBMSND driver - PLAY PREFORMATTED SOUND
    AX = 068Bh
    DS:SI -> SNDSTRUC (see #1878)
Return: AX = ???
SeeAlso: AX=0688h,AX=068Ah,AX=068Fh
--------s-66068C-----------------------------
INT 66 - IBMSND driver - REPORT AUDIO DRIVER CAPABILITIES
    AX = 068Ch
Return: AX = capabilities (see #1879)
    DX = playback rate if fixed-frequency playback
SeeAlso: AX=0689h,AX=068Dh

Bitfields for IBMSND driver capabilities:
Bit(s)    Description    (Table 1879)
 0    can play audio in background
 1    data is massaged
 2    driver plays at fixed frequency, resampling input data to fit
 3    driver uses timer interrupt
--------s-66068D-----------------------------
INT 66 - IBMSND driver - REPORT CURRENT SAMPLE ADDRESS
    AX = 068Dh
Return: AX = current playback address
Desc:    determine what point in the audio data the playback has reached, for
      synchronization with video or animation effects
Notes:    this function applies to background playback only
    the reported address may be an approximation rather than the exact
      address
SeeAlso: AX=068Ch,AX=0691h
--------s-66068E-----------------------------
INT 66 - IBMSND driver - SET CALLBACK ADDRESS
    AX = 068Eh
    BX:DX -> callback function
        0000h:0000h to disable callback
    DS = value to load into DS when calling the callback function
Desc:    specify the function to be called when playback of a sound effect is
      completed
Note:    the callback function will typically be called during a hardware
      interrupt, so all the usual precautions should be taken except for
      preserving registers
SeeAlso: AX=0691h
--------s-66068F-----------------------------
INT 66 - IBMSND driver - STOP CURRENT SOUND
    AX = 068Fh
Desc:    cause any currently-playing sound effect to be terminated
SeeAlso: AX=0688h,AX=068Bh
--------s-660690-----------------------------
INT 66 - IBMSND driver - "SetAudioHardware" SET UP HARDWARE INFO [obsolete]
    AX = 0690h
Note:    this function is no longer implemented
--------s-660691-----------------------------
INT 66 - IBMSND driver - REPORT CALLBACK ADDRESS
    AX = 0691h
Return: AX:DX -> current callback function
    BX = original caller's DS register
Program: The IBMSND driver is part of John W. Ratcliff's
       The IBM Digitized Sound Package
SeeAlso: AX=068Eh
--------s-660701-----------------------------
INT 66 - IBM Digitized Sound Package MIDI driver - GET DIGITIZED SOUND CAPABIL
    AX = 0701h
Return: AX = digitized sound capabilities
        0000h if digitized sound driver (functions 06xxh) not available
Note:    the installation check for the MIDI driver is to test for the signature
      "MIDI" six bytes before the interrupt handler
SeeAlso: AX=0688h
--------n-6610-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - GET ???
    AH = 10h
Return: CF clear
    AX = 0000h
    BX = ??? (0012h)
    DX:CX -> TDMOUSE INT 33 handler (IRET to hide mouse from other apps)
Program: TDMOUSE is a PenDOS hardware driver which allows a mouse to emulate
      a touchpad; PenDOS is a set of programs by Communication Intelligence
      Corporation which makes applications pen-aware
--------n-6611-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SET ??? HANDLER
    AH = 11h
    DX:BX -> new handler for ???
Return: CF clear
    AX = 0000h
    DX:BX -> old handler for ??? (points at RETF by default)
--------n-6612-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - INITIALIZE
    AH = 12h
Return:    CF clear
    AX = 0000h
Note:    this function calls the old mouse handler with functions 0000h, 0002h,
      0007h, 0008h, 000Fh, 0004h, and 000Ch (in that order)
SeeAlso: AH=13h
--------n-6613-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SHUTDOWN???
    AH = 13h
Return: CF clear
    other register as returned by INT 33/AX=0000h
SeeAlso: AH=12h
--------n-6614-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - ???
    AH = 14h
    BX = ???
    CX = ???
Return: CF clear
    AX = 0000h
--------n-6615-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - SET ??? HANDLER
    AH = 15h
    DX:BX -> new handler for ???
Return: CF clear
    AX = 0000h
    DX:BX -> old handler (points at RETF by default)
--------n-6616-------------------------------
INT 66 - PenDOS - TDMOUSE.EXE - UNUSED FUNCTIONS
    AH = 16h to 1Fh
Return: CF set
Program: TDMOUSE is a PenDOS hardware driver which allows a mouse to emulate
      a touchpad; PenDOS is a set of programs by Communication Intelligence
      Corporation which makes applications pen-aware
--------n-6621-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 21h
Return: CF clear if successful
    CF set on error
Note:    this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-6622-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 22h
    DX:BX -> ???
    CL = ???
Return: CF clear if successful
    CF set on error
    ???
SeeAlso: AH=24h
--------n-6623-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 23h
    ???
Return: CF clear if successful
    CF set on error
    ???
--------n-6624-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 24h
    DX:BX -> ???
    CL = ???
Return: CF clear if successful
    CF set on error
    ???
SeeAlso: AH=22h
--------n-6625-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 25h
    CL = ??? (NOP if 00h)
    ???
Return: CF clear if successful
    CF set on error
    ???
--------n-6627-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 27h
    BL = ???
    BH = ???
    CL = ??? (0-3)
    DL = ??? (> BL)
    DH = ??? (> BH)
Return: ???
--------n-6628-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 28h
    ???
Return: CF clear if successful
    CF set on error
    ???
Note:    this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-6629-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 29h
    ???
Return: ???
Note:    this function sets ??? flag or counter (also set by AH=2Fh) to FFFFh
--------n-662A-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 2Ah
    DL = ??? (nonzero)
    DH = ??? (nonzero)
Return: CF clear if successful
    CF set on error
    ???
--------n-662B-------------------------------
INT 66 - PenDOS - PINK - ???
    AH = 2Bh
    ???
Return: CF clear if successful
    CF set on error
    ???
--------n-662F-------------------------------
INT 66 - PenDOS - PINK - INITIALIZE
    AH = 2Fh
    ???
Return: AX = status
        0000h failed
        FFFFh successful
    ???
Note:    this function sets ??? flag or counter to FFFFh and hooks INT 1Ch
--------F-663345-----------------------------
INT 66 - BitFax Scheduler - REMOVE TSR FROM MEMORY
    AX = 3345h
Return: AX = FFFFh error removing TSR
Note:    the installation check consists of checking for the signature
      "BitFax Scheduler" beginning two bytes past the interrupt handler
SeeAlso: AH=04h,INT 2F/AH=2Ah,INT 2F/AX=CB00h
Index:    installation check;BitFax Scheduler
--------n-6640-------------------------------
INT 66 - PenDOS - PKEYUS - GET VERSION
    AH = 40h
Return: CF clear
    AX = 0000h
    BH = major version (02h for version bundled with IBM DOS 6.1)
    BL = minor version (00h for version bundled with IBM DOS 6.1)
    DL = ??? (4Eh)
    DH = ??? (0Eh)
--------n-6641-------------------------------
INT 66 - PenDOS - PKEYUS - SET ???
    AH = 41h
    BX = ???
    CL = ??? (08h-20h)
    DL = screen column??? (<= 50h)
    DH = screen row???  (<= 3Ch)
Return: AX = status (0000h successful, 0001h error)
Note:    this function also sets an internal flag
SeeAlso: AH=42h,AH=43h
--------n-6642-------------------------------
INT 66 - PenDOS - PKEYUS - ???
    AH = 42h
Return: CF clear
    AX = 0000h
Note:    this function also clears the flag set by AH=41h
SeeAlso: AH=41h
--------n-6643-------------------------------
INT 66 - PenDOS - PKEYUS - ???
    AH = 43h
    BX = ???
    DX = ???
Return: AX = status
        0000h if AH=41h flag set
        else
        AH = ???
        AL = ???
        BX = ???
        DX = ???
SeeAlso: AH=41h
--------n-6644-------------------------------
INT 66 - PenDOS - PKEYUS - UNUSED FUNCTIONS
    AH = 44h to 4Fh
Return: CF set
--------n-6650-------------------------------
INT 66 - PenDOS - PMOUSE - SET ???
    AH = 50h
    BX = ???
    CH = ???
    DX = ???
Return: CF clear
    AX = 0000h
--------n-6651-------------------------------
INT 66 - PenDOS - PMOUSE - NOP
    AH = 51h
Return: CF set
--------n-6652-------------------------------
INT 66 - PenDOS - PMOUSE - ???
    AH = 52h
    BX = ???
    CL = ???
    DX = ???
Return: ???
--------n-6653-------------------------------
INT 66 - PenDOS - PMOUSE - UNUSED FUNCTIONS
    AH = 53h to 57h
Return: CF set
--------n-66---------------------------------
INT 66 - PenDOS - PMOUSE - ALTERNATE API
    AH = function (58h-5Fh)
Note:    these functions exactly duplicate AH=50h-57h
----------66AA02-----------------------------
INT 66 - HelpTSR v2.10 - INSTALLATION CHECK
    AX = AA02h
Return: ES:DI -> 7 byte signature "HelpTSR" if resident
Program: HelpTSR is a resident viewer by David Jurgens for HelpPC
--------n-66C5-------------------------------
INT 66 - PenDOS - VLOAD - API
    AH = C5h
    ???
Return: ???
--------t-66FFFBBXFFFB-----------------------
INT 66 - MicroHelp Stay-Res Plus - ???
    AX = FFFBh
    BX = FFFBh
    ???
Return: ???
SeeAlso: AX=FFFEh,INT 2D"AMIS"
--------t-66FFFEBXFFFE-----------------------
INT 66 - MicroHelp Stay-Res/Stay-Res Plus - UNINSTALL
    AX = FFFEh
    BX = FFFEh
Return: only if unsuccessful
Notes:    installation check is for the interrupt handler to begin with the bytes
      FBh 9Ch or 9Ch FAh, and the program name (not case-sensitive) to
      appear at offset 0005h (older versions) or the offset returned by
      AX=FFFFh/BX=FFF0h in the interrupt handler segment.
    Programs which use Stay-Res include ThesPlus (program name "THESPLUS")
      and Personal Calendar (program name "CAL") by Paul Mun~oz-Colman.
SeeAlso: AX=FFFBh,AX=FFFFh,INT 2D"AMIS"
Index:    installation check;MicroHelp Stay-Res|installation check;ThesPlus
Index:    installation check;Personal Calendar|installation check;CAL
--------t-66FFFFBXFFF0-----------------------
INT 66 - MicroHelp Stay-Res Plus - FIND PROGRAM NAME
    AX = FFFFh
    BX = FFF0h
Return: DI = offset of program name in interrupt handler segment
SeeAlso: AX=FFFBh,AX=FFFEh,INT 2D"AMIS"
--------d-67---------------------------------
INT 67 - Adaptec controllers - DRIVE 1 DATA
Desc:    this vector stores the last four bytes of the parameter table for
      hard disk 1
SeeAlso: INT 64"Adaptec",INT 65"Adaptec",INT 66"Adaptec"
--------d-67---------------------------------
INT 67 - Pdisk by Scott Garfinkle - Overwritten for Hard Drive information
SeeAlso: INT 64"Pdisk",INT 66"Pdisk"
--------I-67---------------------------------
INT 67 - Sangoma CCPOP 3270 resident module
SeeAlso: INT 61"Sangoma",INT 68"Sangoma"
--------U-67---------------------------------
INT 67 - CUCKOO.COM - INSTALLATION CHECK
Program: CUCKOO is a resident on-screen clock with optional hourly chime or
      cuckoo by an unknown author with revisions by Thomas A. Lundin
Note:    this is not a vector; when loaded for the first time, CUCKOO.COM uses
      the last unused (0000h:0000h) vector in the range 60h-67h to store
      the signature value 434Ch:4F4Bh ('CLOK')
--------N-6700-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE AND WAIT
    AH = 00h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #1880)
    AH = semaphore owner if status=02h
SeeAlso: AH=01h,AH=02h"PC-NET",INT 7F/AH=00h

(Table 1880)
Values for PC-NET semaphore function status:
 00h    successful
 01h    invalid function
 02h    semaphore already locked
 03h    unable to lock semaphore
 04h    semaphore space exhausted
--------N-6701-------------------------------
INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE
    AH = 01h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #1880)
    AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=02h"PC-NET",INT 7F/AH=01h"Alloy"
--------N-6702-------------------------------
INT 67 - PC-NET, Alloy NTNX - UNLOCK SEMAPHORE
    AH = 02h
    DS:DX -> ASCIZ semaphore name (max 64 bytes)
Return: AL = status (see #1880)
    AH = semaphore owner if status=02h
SeeAlso: AH=00h,AH=01h"PC-NET",INT 7F/AH=02h
--------m-671E-------------------------------
INT 67 U - Qualitas 386MAX v7.00 - MEMLIMIT - INSTALLATION CHECK
    AH = 1Eh
Return: AH = 00h if installed
        AL destroyed
        ES:DI -> ASCII signature "MemLimit"
SeeAlso: AH=1Fh,INT 21/AX=4402h"386MAX"
--------m-671F-------------------------------
INT 67 U - Qualitas 386MAX v7.00 - MEMLIMIT - API
    AH = 1Fh
    DS:SI -> request packet (see #1881)
Return: AH = status (00h successful, 84h invalid function code, etc.)
SeeAlso: AH=1Eh

Format of 386MAX MEMLIMIT request packet:
Offset    Size    Description    (Table 1881)
 00h    WORD    function code (00h-0Fh)
 02h    WORD    return code (see #1882)
 04h  4 BYTEs    ???
 08h    WORD    ???
    ???

(Table 1882)
Values for 386MAX MEMLIMIT return code:
 00h    unknown request
 01h    invalid parameter for VCPI limit
 02h    VCPI limit set
 03h    invalid parameter for EMS limit
 04h    EMS limit set
 05h    DPMI disabled
 06h    XMS disabled
 07h    XMS limit set
 08h    unable to uninstall
 09h    unloaded
--------m-673F--CX5145-----------------------
INT 67 U - QEMM-386 v4.23+ - INSTALLATION CHECK
    AH = 3Fh
    CX = 5145h ("QE")
    DX = 4D4Dh ("MM")
Return: AH = 00h if installed
        ES:DI -> QEMM API entry point
Notes:    if no other program has hooked INT 67, an alternate installation
      check is to test for the string
      "QUARTERDECK EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
      handler's segment; the word at offset 12h contains the offset in
      the handler's segment of the API entry point
    although this function is still undocumented, Quarterdeck has recently
      documented two alternate methods for determining the QEMM API entry
      point, as well as several of the API functions
    MICEMM (Micronics Expanded Memory Manager) versions 2.0C and 4D support
      the alternate QEMM installation check and entry point functions 00h,
      02h, and 03h; version 4D only provides the signature string if the
      commandline argument "DV" is provided
    386MAX v6.01 responds to this call, but DESQview 2.42 does not
      recognize the returned entry point as providing QEMM's capabilities
      because a) only functions 0Ch (different from QEMM 0Ch) and
            1000h-1009h are supported,
          b) status is returned as for EMS functions, not QEMM funcs
          c) the protected-mode entry point returned by function 1000h
            only supports functions 0Ch, 1004h, 1005h, and 100Ah
    the string check mentioned above is not supported by 386MAX
SeeAlso: AX=5BF0h,AH=DDh,AX=FFA5h,INT 15/AX=11DEh,INT 21/AX=4402h/SF=01h
SeeAlso: INT 21/AX=4402h"QEMM",INT 21/AX=4402h"386MAX",INT 2F/AX=D201h/BX=5145h

(Table 1883)
Call QEMM entry point with:
    AH = 00h get QEMM state (documented)
        Return: CF clear
            AL = QEMM state
                bit 0 set if QEMM turned OFF
                bit 1 set if in "Auto" mode
    AH = 01h set QEMM state (documented)
        AL = new state
            bit 0 set: place QEMM in OFF state
        Return: CF clear if successful
            CF set on error
    AH = 02h get ???
        Return: CF clear
            AX = segment of ??? data structure
            Data Structure
            Offset    Size    Description
             00h    DWORD    page table entry for ???
                ???
    AH = 03h get QEMM version (documented)
        Return: CF clear
            AX = BX = version in BCD
        Notes:    the most recent official docs state that the version is
              returned in both AX and BX; older documentation only
              mentions BX
            MICEMM returns AX=0001h, BX unchanged
    AH = 04h allocate 4K page and set AUTO/ON mode
        Return: CF clear if successful
                DX = page number of a 4K page
            CF set if unable to allocate page
        Note:    QEMM mode unchanged if not AUTO/OFF
    AH = 05h free 4K page and turn QEMM off
        DX = page number returned by function 04h
        Return: CF clear
        Note:    QEMM mode unchanged if not AUTO/ON
    AH = 06h make new mapping context???
        DX = page number of 4K page to hold page table
        Return: CF clear
        Note:    copies page table into given page and then sets ???
              page table entry to point at copy
    AH = 07h get mapping context
        Return: CF clear
            DX = page number of page table for current mapping
                  context
    AH = 08h set mapping context???
        DX = linear page number of page table
        Return: CF clear
    AH = 09h get linear page number for page table entry
        CX = page table index
        Return: CF clear
            DX = linear page number
    AH = 0Ah set linear page number for page table entry
        CX = page table index
        DX = linear page number
        Return: CF clear
    AH = 0Bh map 4K pages
        BX = number of pages
        CX = first page number (must be 0100h to allocate HMA)
        DX = EMS handle (memory belonging to EMS handle will be mapped
              into the address space beginning with the first page
              allocated to the handle)
        Return: AH = 00h
    AH = 0Ch get available memory
        Return: CF clear
            BX = 0001h
            CX = total 4K pages???
            DX = number of 4K pages free
    AH = 0Dh CRT controller I/O port trapping
        AL = mode
            00h only trap on I/O ports 03C0h-03C5h, 03C7h, 03CAh-03CFh
            01h trap on ports 03B4h, 03B5h, 03B8h, 03C6h, 03C8h, 03C9h,
              03D4h, and 03D5h
            02h only trap on I/O ports 03C6h, 03C8h, and 03C9h
        Return: CF clear
    AH = 0Eh set cursor virtualization callbacks
        DS:BX -> FAR routine for getting hardware cursor address
        ES:DX -> FAR routine for setting hardware cursor address
        Return: CF clear
        Note:    both callbacks are invoked with CL indicating which
              CRT controller register to access (0Eh for high
              byte of cursor address, 0Fh for low byte)
            the DS:BX callback should return BX=cursor address;
              ES:DX is called with BL or BH (depending on CL)
              set to the appropriate half of the cursor's address
    AH = 0Fh unmap 4K pages
        CX = first page number
        DX = number of pages
        Return: CF clear
            AL = 00h/01h if ???
        Note:    if CX=0100h and DX=0010h, the HMA is remapped to
              simulate a disabled A20
    AX = 1000h get protected-mode interface
        DS:SI -> 16-byte buffer for two GDT entries
        ES:DI -> buffer for 4K page table
        Return: CF clear
            EAX = offset of protected-mode API entry point
            DS:SI buffer filled with two GDT descriptors
                first is QEMM code segment, second is data???
            ES:DI buffer filled with 4K page table
            DI points to first unused page table entry
        SeeAlso: INT 67/AX=DE01h
    AX = 1001h get CPU debug registers
        ES:DI -> buffer for debug registers (8 DWORDs)
        Return: CF clear
            BL = INT01 handling (see function 1002h)
            ES:DI buffer filled
    AX = 1002h set CPU debug registers
        BL = INT01 handling
            00h     reflect all debugging exceptions as V86-mode INT 01's
            else convert debugging exceptions other than single-step
              into V86-mode INT 03's, single-step to INT 01's
        ES:DI -> buffer containing debug registers (8 DWORDs)
        Return: CF clear
        Notes:    identical to INT 67/AX=DE09h if BL=01h
            the INT01 handling flag is set to 01h by the general-
              protection violation handler for certain privileged
              instructions
    AX = 1003h get machine status word CR0
        Return: CF clear
            EAX = contents of CR0
        SeeAlso: INT 67/AX=DE07h
    AX = 1004h allocate a 4K page
        Return: CF clear if successful
                EDX = linear address of allocated page
            CF set on error
        SeeAlso: INT 67/AX=DE04h
    AX = 1005h free 4K page
        EDX = linear address of page to free
        Return: CF clear
        SeeAlso: INT 67/AX=DE05h
    AX = 1006h NOP
        Return: CF set
    AX = 1007h get maximum physical memory address
        Return: CF clear
            EDX = physical address of highest 4K memory page
        SeeAlso: INT 67/AX=DE02h
    AX = 1008h get physical address of page in first megabyte
        CX = page number (linear address shifted right 12 bits)
        Return: CF clear
            EDX = linear address of page
        SeeAlso: function 1F00h
    AX = 1009h switch to protected mode
        ESI = linear address in first megabyte of system reg values
            (see INT 67/AX=DE0Ch)
        interrupts disabled
        Return: interrupts disabled
            GDTR, IDTR, LDTR, TR loaded
            SS:ESP must have at least 16 bytes space, and the
                  entry point is required to set up a new stack
                  before enabling interrupts
            EAX, ESI, DS, ES, FS, GS destroyed
    AX = 100Ah switch back to virtual-86 mode
        DS = selector for data segment from function 1000h
        SS:ESP in first megabyte of linear memory
        interrupts disabled
        STACK:    QWORD  return address from FAR call to 32-bit segment
            DWORD  EIP
            DWORD  CS
            DWORD  reserved for EFLAGS
            DWORD  ESP
            DWORD  SS
            DWORD  ES
            DWORD  DS
            DWORD  FS
            DWORD  GS
        will switch to virtual86 mode with interrupts disabled, all
          segment registers loaded, and EAX destroyed.
    AH = 11h get memory type map
        AL = zero/nonzero ??? (set by QEMM.COM but apparently ignored
              by QEMM 6.00)
        ES:DI -> 256-byte buffer for memory types
        Return: CF clear
            BL = ???
            ES:DI buffer filled
        Note:    each byte of the buffer corresponds to a 4K page, and
              contains the type of that page: 00h = mappable,
              02h = mapped ROM, 03h = high RAM, 04h = excluded,
              05h = video, 06h = ROM, 07h = adapter ROM,
              08h = split ROM, 09h = page frame, 0Ah = RAMmable,
              0Bh = conventional, 83h = high RAM under MS Windows
    AH = 12h get HIRAM chain
        Return: CF clear
            BX = segment of first MCB in high memory
                0000h if no high memory
    AX = 1300h VIDRAMEGA???
        BL = 00h copy ???
             nonzero copy ??? (reverse)
        Return: CF clear
            AL = status
                00h if all pages clean
                01h if any page dirty
    AX = 1301h check if pages modified
        DX:DI = start address of range to check
        CX = length of range in paragraphs
        Return: CF clear
            CX = status
                0000h none of the indicated pages is dirty
                DI destroyed
                1000h one or more pages is dirty
                DI = low word of first dirty page's linear addr
    AX = 1302h ???
        BL = ???
        BH = ???
        CX = ???
        SI = offset of ???
        DI = offset of ???
        ???
        Return: CF clear
            ???
        Note:    disables certain interrupts at the two 8259 PICs during
              execution; also modifies CRT controller during
              execution under certain circumstances
    AX = 1303h initialize EGA graphics virtualization
        BX = number of pages (less 1) of EMS to allocate
        Return: CF clear if successful
                DX = EMS handle
            CF set on error
    AX = 1304h shutdown EGA graphics virtualization
        DX = EMS handle being used for virtualization
        Return: CF clear
    AX = 1305h select portion of EGA graphics to virtualize???
        (related to graphics virtualization, changes memory mappings)
        CX = start offset within A000h segment of virtualized mem???
        Return: CF clear
        Note:    disables certain interrupts at the two 8259 PICs during
              execution (see func 130Ch) and runs inside a QEMM
              critical section
    AX = 1306h set DESQview critical section counter address
        ES:BX -> WORD DESQview critical section counter or 0000h:0000h
        Return: CF clear
        Note:    also sets a pointer in the low-memory part of QEMM to
              the current value of INT 15 if ES:BX not 0000h:0000h
    AX = 1307h ??? (changes memory mappings for entire A000h segment)
        Return: CF clear
        Note:    disables certain interrupts at the two 8259 PICs during
              execution (see func 130Ch) and runs inside a QEMM
              critical section
    AX = 1308h start/reset CRT controller I/O trapping
        BL = subfunction
            00h restore CRTC I/O port trapping to previous state
            else start trapping all accesses to I/O ports 03B0-03DF
        Return: CF clear
        Note: if called more than once in a row with BL nonzero, the
            original state of the I/O port trapping will be lost
    AX = 1309h Hercules mode-change support
        ES:BX -> new address for Hercules mode-change callback
        Return: CF clear
        Note:    the callback function is called whenever the CRTC mode
              register is written, with AL set to the value written
    AX = 130Ah virtualize EGA/VGA DAC registers (I/O ports 03C8h/03C9h)
        CX:DX -> DAC register virtualization buffer (see #1890)
            or 0000h:0000h to disable
        Return: CF clear
    AX = 130Bh ???
        BL = ??? (??? or 00h)
        Return: CF clear
            ???
        Note:    calls AX=130Eh in some cases
    AX = 130Ch set interrupts to mask
        BX = interrupts to mask out during AX=1302h,AX=1307h,AX=1308h,
            AX=130Dh,AX=1310h (BL = master PIC, BH = slave PIC)
        Return: CF clear
    AX = 130Dh map EGA memory at A0000h
        ???
        Return: CF clear
        Note:    disables certain interrupts at the two 8259 PICs during
              execution (see func 130Ch) and runs inside a QEMM
              critical section
            calls AX=1307h
    AX = 130Eh ??? (modifies CRT controller setup)
        ???
        Return: CF clear
    AX = 130Fh reset ???
        Return: CF clear
    AX = 1310h copy modified pages to physical video RAM???
        ???
        Return: CF clear
        Note:    disables certain interrupts at the two 8259 PICs during
              execution (see func 130Ch) and runs inside a QEMM
              critical section
            also calls AX=130Dh
    AX = 1311h set ???
        BL = zero/nonzero???
        Return: CF clear
        Note:    certain operations will be performed with interrupts
              (as set by AX=130Ch) enabled rather than disabled if
              called with BL nonzero
    AX = 1312h (v6.02) NOP???
        Note:    called by DV 2.42, but appears to be a NOP in QEMM 6.02
    AX = 1400h initialize DESQview "protection level" support
        ES:DI -> protection level configuration (at least 24 bytes)
            (see #1884)
        BL = highest ??? to return (one less than number of words)
        Return: CF clear
            AX = ??? (4204h for v6.00)
        Note:    QEMM also sets the protected mode INT 02 and INT 06
              vectors to alternate handlers in certain cases
    AX = 1401h turn off DESQview protection level support
        Return: CF clear
            ???
        Notes:    clears the DV critical-section flag address set with
              function 1306h
            QEMM also sets the protected mode INT 02 and INT 06
              vectors to the default handlers if they had been
              revectored by function 1400h
    AX = 1402h set protection level???
        BL = protection level???
            00h NOP
            01h ???
            02h ???
            other (03h) ???
        ES:DI -> ???
        Return: CF clear
            ???
        Format of Data structure:
        Offset    Size    Description
         00h    WORD    segment of ??? (X, word at X:0136h set to X)
         02h    WORD    segment of ??? (word at X:0124h set to this)
         04h    WORD    number of paragraphs of ???
         06h  3 WORDs    ??? (copied to X:0000h)
         0Ch    WORD    ???
    AX = 1403h add ??? to end of list and ??? (execute func 1406h)
        ES:DI -> ??? structure added to end of ??? list
            (at least 31 bytes, DWORD at offset 06h used for
             storing pointer to next struc, WORD at offset 00h
             seems to be a key or index)
        Return: CF clear
    AX = 1404h NOP
        Return: CF clear
    AX = 1405h remove ??? from ??? list
        BX = key???
        Return: CF clear
    AX = 1406h ???
        ???
        Return: CF clear
            ???
        Notes:    this function is a NOP unless protection level 2 or 3
              is active
            when not a NOP, one of the actions is to write-protect
              certain memory pages
    AX = 1407h ???
        ???
        Return: CF clear
            ???
        Note:    same as function 1406h, but only does anything if
              protection level 2 is active
    AX = 1408h unprotect???
        ???
        Return: CF clear
            ???
    AX = 1409h abort program causing protection violation???
        ???
        Return: CF clear
            ???
    AX = 140Ah set ???
        BX = index of ???
        Return: CF clear
            ???
        Notes:    no range checking is performed on BX
            this function is a NOP unless protection level 3 active
    AX = 140Bh get ???
        BX = index of ???
        SI = 0000h
        Return: CF clear
            SI = segment of 256-byte buffer??? or 0000h
        Notes:    no range checking is performed on BX
            this function is a NOP unless protection level 3 active
    AH = 15h set timer channel 0 virtualization buffer
        ES:BX -> WORD buffer for timer channel 0 divisor
            0000h:0000h to disable virtualization
        Return: CF clear
     ---QEMM v5.00+ ---
    AX = 1600h get memory access status
        ES:DI -> 256-byte buffer
        Return: ES:DI buffer filled
        Note:    each byte of the buffer indicates the status of a 4K
              page (bit 0 set if read, bit 1 set if written)
    AX = 1601h set memory access status
        ES:DI -> 256-byte buffer containing access statuses (see above)
    AH = 17h get memory usage statistics
        ES:DI -> 81-byte buffer for memory statistics (see #1888)
        Return: CF clear
     ---QEMM v5.11+ ---
    AH = 18h check whether conventional memory mapped into address range
        ES:BX = starting address
        CX = number of 4K pages
        Return: CF clear
            AL = 00h one or more pages is remapped
                 01h all pages in range are conventional memory
                (physical address == virtual address)
    AH = 19h NOP
        Return: CF set
    AH = 1Ah I/O port access
        AL = subfunction
            00h get byte from I/O port
            Return: BL = port value
            01h send byte to I/O port
            BL = value to send
            02h send byte to I/O port, get byte from following port
            BH = value to send
            Return: BL = value read
            03h send bytes to two consecutive I/O ports
            BH = value for first I/O port (DX)
            BL = value for second I/O port (DX+1)
        DX = port number
        Return: CF clear
    AH = 1Bh MS Windows 3.x support
        AL = subfunction
            00h get EMM Import Structure address
            ES:DI -> buffer for EMM import data structure
                  (see #1886)
            Return: CF set on error
                CF clear if successful
            SeeAlso: INT 21/AX=4402h/SF=01h
            01h disable V86 mode
            Return: CF set on error
                    (i.e. no Global EMM Import rec. allocated)
                CF clear if successful
            Note:    shuts down EMS and initializes Global EMM
                  Import record; this function is invoked from
                  the callback supplied by INT 2F/AX=1605h
            02h enable V86 mode
            Return: CF set on error
                CF clear if successful
            Note:    restarts EMS and frees Global EMM Import
                  record; this function is invoked from the
                  callback supplied by INT 2F/AX=1605h
            03h MS Windows initializing
            CX = segment from which Windows init broadcast made???
            DX = Windows startup flags
            DI = Windows version number (major in upper byte)
            Return: CF clear if successful
                    DS:SI -> V86 mode enable/disable callback
                      (see INT 2F/AX=1605h)
                    ES:BX -> startup info structure
                      (see INT 2F/AX=1605h)
                CF set on error (unable to start Windows)
            SeeAlso: INT 2F/AX=1605h
            04h MS Windows terminating
            Return: CF clear
            05h determine whether program is driver
            DS:DX -> ASCIZ filename
            Return: CF clear
                AL = status
                    01h if string ends in ".DRV"
                    FFh if string ends in "GDI.EXE"
                    00h otherwise
            Note:    when MS Windows 3.0 standard mode starts,
                  QEMM patches all drivers until GDI.EXE is
                  loaded
            06h patch protected-mode check in Windows driver
            CX = length of data pointed at by DS:DX
            DS:DX -> buffer containing Windows driver code
            Return: CF clear
            Note:    patches all SMSW x/TEST x,1 instruction
                  sequences into MOV x,CS/VERW x sequences,
                  which has the effect that the protected-mode
                  check will only indicate protected mode in
                  native protected mode and not in V86 mode
            07h BUG: QEMM 6.00-7.01 accept this and branch randomly
            else Return: CF set
    AH = 1Ch hardware interrupt V86-mode calldowns
        AL = subfunction
            00h disable IRQ0-7 calldowns
            01h set V86-mode IRQ0-7 handlers
            ES:DI -> 8 DWORDs containing V86-mode handler addresses
            02h disable IRQ8-15 handlers
            03h set V86-mode IRQ8-15 handlers
            ES:DI -> 8 DWORDs containing V86-mode handler addresses
        BUG:    although the jump table only contains four entries,
              QEMM 6.00 will attempt to use it for any value of
              AL between 00h and 2Ah, thus branching unpredictably
              for AL=04h-2Ah; QEMM v7.01 behaves similarly for
              AL=04h-1Bh
        Note:    when enabled, the appropriate IRQs are reflected back
              to the specified handlers in virtual-86 mode after
              the CPU automatically invokes the protected-mode
              handler inside QEMM
     ---QEMM v6.00+ ---
    AH = 1Dh Stealth interrupts
        AL = subfunction
            00h switch to pre-Stealth interrupt vector table
            Note:    also switches VGA Save table pointer
                  (0040h:00A8h) and overwrites the vectors
                  currently assigned for use by the two
                  interrupt controllers (see INT 67/AX=DE0Ah)
                  with the vectors for INT 08-0F and 70-77 (to
                  avoid crashing the system).
            01h restore user interrupt vector table
            Notes:    interrupts should be disabled around the
                  AX=1D00h and AX=1D01h calls because QEMM does
                  not modify the memory maps to map in ROM, so
                  an interrupt could be disastrous
                clears any pending IRQ7 at end of function
            else
            Return: CF set
        Note:    functions 1Dxxh are not supported by QEMM v7.01, and
              always return CF set
    AH = 1Eh Stealth information (partially documented)
        AL = subfunction
            00h "QEMM_GET_INFO" get Stealth configuration
            Return: BL = memory configuration flags
                      (documented as "reserved") (see #1887)
                BH = reserved (always 00h for v6.00)
                CL = stealth type
                    (00h none,46h Frame,4Dh Map, 50h Protect)
                CH = suspend/resume interrupt (00h none)
                DX = reserved (always 0000h for v6.00)
                SI = reserved (always 0000h for v6.00)
                DI = reserved (always 0000h for v6.00)
            01h "QEMM_GET_STEALTH_COUNT" get number of Stealth'ed ROMs
            Return: CF clear
                BX = number of Stealth'ed ROMs
            02h "QEMM_GET_STEALTH_LIST" get Stealth'ed ROM info
            ES:DI -> buffer for Stealth ROM info (see #1889)
            Return: CF clear
                BX = number of Stealth'ed ROMs
                ES:DI buffer filled
            else
            Return: CF set
    AH = 1Fh page table manipulation (documented)
        AL = subfunction
            00h "QEMM_GET_PTE" get page table entry
            CX = page number
            Return: EDX = page table entry
                CF clear
            01h "QEMM_SET_PTE" set page table entry
            CX = page number
            EDX = new page table entry
            Return: CF clear
            SeeAlso: function 1008h
            else
            Return: CF set
    AH = 20h asynchronous disk access support (documented)
        AL = subfunction
            00h "QEMM_GET_VHI_INFO" get VirtualHDIRQ information
            Return: CF clear
                BL = flags
                    bit 7: VirtualHDIRQ setting respected
                      (set if Stealth active)
                    bits 6-1 reserved
                    bit 0: VirtualHDIRQ currently enabled
                    (INT 15/AH=90h suppressed when enabled)
            01h "QEMM_SET_VHI_FINO" set VirtualHDIRQ state
            BL bit 0 = new VirtualHDIRQ state
            Return: CF clear
                BL = old VHI setting (bits 0 and 7, see above)
            else
            Return: CF set
    AH = 21h Stealth support (documented)
        AL = subfunction
            00h "QEMM_COPY_STEALTH_ROMS" copy data from Stealthed addr
            DS:SI -> start address of hidden memory to copy
            ES:DI -> buffer for copied data
            ECX = number of bytes to copy
            Return: CF clear if successful
                CF set on error (DS:SI < C000h:0000h or
                          DS:SI + ECX > 1M)
            else
            Return: CF set
    ---QEMM v6.03+ ---
    AH = 22h DESQview/X support
        AL = subfunction
            00h get ???
            Return: CF clear
                ES:DI -> ???
            01h set ???
            ES:DI -> ??? or 0000h:0000h
            Return: CF clear if successful
                CF set on error
    ---QEMM v6.04+ ---
    AH = 23h ???
        AL = subfunction
            00h get ???
            BX = which ??? to get (must be 0000h for v6.04)
            Return: CF clear if successful
                    ES:DI -> ???
                CF set on error
            01h set ???
            BX = which ??? to set (must be 0000h for v6.04)
            ES:DI -> ???
            Return: CF clear if successful
                CF set on error
            02h clear specified ???
            BX = which ??? to clear (must be 0000h for v6.04)
            Return: CF clear if successful
                CF set on error
            FFh clear all ???
            else
            Return: CF set
    ---QEMM v7.01 only---
    AH = 24h ST-DBL support
        AL = subfunction
            00h set ???
            EDX -> information table
                (EDX = segment SHL 16 + offset)
            01h ???
    other
        Return: CF set

Format of QEMM protection level configuration:
Offset    Size    Description    (Table 1884)
 00h    WORD    segment of 128 breakpoint (INT 3) instructions for use in
          DESQview protection level 3 interrupt vector checking, or
          0000h to disable; in pl3, INTs 00-7F are pointed at these
          breakpoints
 02h    DWORD    -> array of actual interrupt handler addresses for INT 00-7F
          when interrupt vectors are pointed at protection level 3
          breakpoints
 06h    DWORD    far pointer to ??? region list (see #1885)
 0Ah    DWORD    far pointer to buffer for returned ???
 0Eh    DWORD    seg:ofs of function to call on protection violation???
 12h    WORD    segment of ???
 14h    DWORD    far pointer to DWORD containing number of paragraphs of
          ??? for segment at offset 12h
    ???

Format of protection level Region List:
Offset    Size    Description    (Table 1885)
 00h    WORD    number of PAIRS of pointers to follow
 02h 2N DWORDs    start/end seg:ofs addresses of ??? regions
Note:    QEMM converts the segmented addresses into linear addresses in place

Format of EMM Import structure:
Offset    Size    Description    (Table 1886)
 00h    DWORD    physical address of EMM import struct
 04h    BYTE    major version (v6.00 sets to 01h)
 05h    BYTE    minor version (v6.00 sets to 00h/0Bh)
SeeAlso: INT 21/AX=4402h/SF=01h

Bitfields for memory configuration flags:
Bit(s)    Description    (Table 1887)
 0    conventional memory sorted
 1    conventional memory filled
 2    ???
 3    ???
 4    expanded memory is in use
 5    ???

Format of QEMM 6.0 memory statistics:
Offset    Size    Description    (Table 1888)
 00h    BYTE    01h if Shadow RAM found, 00h otherwise
 01h    DWORD    initial conventional memory in bytes
 05h    DWORD    initial extended memory in bytes
 09h    DWORD    initial expanded memory in bytes
 0Dh    DWORD    initial "top" or "shadow" memory in bytes
 11h    DWORD    Unavailable conventional memory in bytes
 15h    DWORD    Unavailable extended memory in bytes
 19h    DWORD    Unavailable expanded memory in bytes
 1Dh    DWORD    Unavailable "top" or "shadow" memory in bytes
        Add to offset 49h for Total unavailable top/shadow.
 21h    DWORD    QEMM code size in bytes
 25h    DWORD    QEMM data size in bytes
 29h    DWORD    bytes used for TASKS=
 2Dh    DWORD    DMA buffer size
 31h    DWORD    bytes used for MAPS=
 35h    DWORD    bytes of high RAM
 39h    DWORD    bytes used by mapped ROMs
 3Dh    DWORD    bytes of conventional memory provided by QEMM
 41h    DWORD    bytes of extended memory NOT converted by QEMM (EXT=xxx)
 45h    DWORD    bytes of EMS/XMS pool memory provided by QEMM
 49h    DWORD    Unavailable "top" or "shadow" memory in bytes
        Add to offset 1Dh for Total unavailable top/shadow.
 4Dh    DWORD    conventional memory overhead in bytes
        (set to 0 by QEMM.COM prior to call)

Format of Stealth ROM info [array]:
Offset    Size    Description    (Table 1889)
 00h    WORD    starting segment of ROM
 02h    WORD    length of ROM in paragraphs

Format of QEMM EGA/VGA DAC register virtualization buffer:
Offset    Size    Description    (Table 1890)
 00h    BYTE    (temp) current color register number
 01h    BYTE    (temp) number of bytes written so far for current color reg
 02h 768 BYTEs    three bytes per color register
--------m-6740-------------------------------
INT 67 - LIM EMS - GET MANAGER STATUS
    AH = 40h
Return: AH = status (00h,80h,81h,84h) (see #1891)
Note:    this call can be used only after establishing that the EMS driver is in
      fact present
SeeAlso: AH=3Fh,AX=FFA5h

(Table 1891)
Values for EMS function status:
 00h    successful
 80h    internal error
 81h    hardware malfunction
 83h    invalid handle
 84h    undefined function requested by application
 85h    no more handles available
 86h    error in save or restore of mapping context
 87h    insufficient memory pages in system
 88h    insufficient memory pages available
 89h    zero pages requested
 8Ah    invalid logical page number encountered
 8Bh    invalid physical page number encountered
 8Ch    page-mapping hardware state save area is full
 8Dh    save of mapping context failed
 8Eh    restore of mapping context failed
 8Fh    undefined subfunction
 90h    undefined attribute type
 91h    feature not supported
 92h    successful, but a portion of the source region has been overwritten
 93h    length of source or destination region exceeds length of region
      allocated to either source or destination handle
 94h    conventional and expanded memory regions overlap
 95h    offset within logical page exceeds size of logical page
 96h    region length exceeds 1M
 97h    source and destination EMS regions have same handle and overlap
 98h    memory source or destination type undefined
 9Ah    specified alternate map register or DMA register set not supported
 9Bh    all alternate map register or DMA register sets currently allocated
 9Ch    alternate map register or DMA register sets not supported
 9Dh    undefined or unallocated alternate map register or DMA register set
 9Eh    dedicated DMA channels not supported
 9Fh    specified dedicated DMA channel not supported
 A0h    no such handle name
 A1h    a handle found had no name, or duplicate handle name
 A2h    attempted to wrap around 1M conventional address space
 A3h    source array corrupted
 A4h    operating system denied access
--------m-6741-------------------------------
INT 67 - LIM EMS - GET PAGE FRAME SEGMENT
    AH = 41h
Return: AH = status (see also AH=40h)
        00h function successful
        BX = segment of page frame
SeeAlso: AH=58h,AH=68h
--------m-6742-------------------------------
INT 67 - LIM EMS - GET NUMBER OF PAGES
    AH = 42h
Return: AH = status (see also AH=40h)
        00h function successful
        BX = number of unallocated pages
        DX = total number of pages
BUG:    DOS 6.0 EMM386.EXE causes a system lock-up or reboot if in AUTO mode
      when this call is made; use AH=46h to ensure that EMM386 is ON
      before making this call
SeeAlso: INT 2F/AX=2702h
--------m-6743-------------------------------
INT 67 - LIM EMS - GET HANDLE AND ALLOCATE MEMORY
    AH = 43h
    BX = number of logical pages to allocate
Return: AH = status (00h,80h,81h,84h,85h,87h,88h,89h) (see #1891)
    DX = handle if AH=00h
SeeAlso: AH=45h
--------m-6744-------------------------------
INT 67 - LIM EMS - MAP MEMORY
    AH = 44h
    AL = physical page number (0-3)
    BX = logical page number
        or FFFFh to unmap (QEMM)
    DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Ah,8Bh) (see #1891)
SeeAlso: AH=69h
--------m-6745-------------------------------
INT 67 - LIM EMS - RELEASE HANDLE AND MEMORY
    AH = 45h
    DX = EMM handle
Return: AH = status (00h,80h,81h,83h,84h,86h) (see #1891)
SeeAlso: AH=43h
--------m-6746-------------------------------
INT 67 - LIM EMS - GET EMM VERSION
    AH = 46h
Return: AH = status (00h,80h,81h,84h) (see #1891)
    AL = EMM version number if AH=00h
--------m-6747-------------------------------
INT 67 - LIM EMS - SAVE MAPPING CONTEXT
    AH = 47h
    DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Ch-8Eh) (see #1891)
SeeAlso: AH=48h
--------m-6748-------------------------------
INT 67 - LIM EMS - RESTORE MAPPING CONTEXT
    AH = 48h
    DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Eh) (see #1891)
SeeAlso: AH=47h
--------m-6749-------------------------------
INT 67 - LIM EMS - reserved - GET I/O PORT ADDRESSES
    AH = 49h
Note:    defined in EMS 3.0, but undocumented in EMS 3.2
--------m-674A-------------------------------
INT 67 - LIM EMS - reserved - GET TRANSLATION ARRAY
    AH = 4Ah
Note:    defined in EMS 3.0, but undocumented in EMS 3.2
--------m-674B-------------------------------
INT 67 - LIM EMS - GET NUMBER OF EMM HANDLES
    AH = 4Bh
Return: AH = status (00h,80h,81h,83h,84h) (see #1891)
    BX = number of EMM handles if AH=00h
--------m-674C-------------------------------
INT 67 - LIM EMS - GET PAGES OWNED BY HANDLE
    AH = 4Ch
    DX = EMM handle
Return: AH = status (see #1328)
    BX = number of logical pages if AH=00h
SeeAlso: AH=4Dh
--------m-674D-------------------------------
INT 67 - LIM EMS - GET PAGES FOR ALL HANDLES
    AH = 4Dh
    ES:DI -> array to receive information
Return: AH = status (00h,80h,81h,84h) (see #1891)
    ---if AH=00h---
    BX = number of active EMM handles
    array filled with 2-word entries, consisting of a handle and the
      number of pages allocated to that handle
SeeAlso: AH=4Ch
--------m-674E-------------------------------
INT 67 - LIM EMS - GET OR SET PAGE MAP
    AH = 4Eh
    AL = subfunction
        00h get mapping registers
        01h set mapping registers
        02h get and set mapping registers at once
        03h get size of page-mapping array
    DS:SI -> array holding information (AL=01h/02h)
    ES:DI -> array to receive information (AL=00h/02h)
Return: AH = status (00h,80h,81h,84h,8Fh,A3h) (see also AH=40h)
        00h successful
        AL = bytes in page-mapping array (AL=03h only)
        array pointed to by ES:DI receives mapping info (AL=00h/02h)
Notes:    this function was designed to be used by multitasking operating systems
      and should not ordinarily be used by appplication software.
    MD386 returns the size of the page-mapping array in AX instead of AL
SeeAlso: AH=4Fh
--------m-674F-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET PARTIAL PAGE MAP
    AH = 4Fh
    AL = subfunction
        00h get partial page map
           DS:SI -> structure containing list of segments whose mapping
            contexts are to be saved
           ES:DI -> array to receive page map
        01h set partial page map
           DS:SI -> structure containing saved partial page map
        02h get size of partial page map
           BX = number of mappable segments in the partial map to be saved
Return: AH = status (00h,80h,81h,84h,8Bh,8Fh,A3h) (see also AH=40h)
        8Bh one of the specified segments is not mappable
        A3h contents of partial page map corrupted or count of mappable
        segments exceeds total number of mappable segments in system
    AL = size of partial page map for subfunction 02h
SeeAlso: AH=4Eh
--------m-6750-------------------------------
INT 67 - LIM EMS 4.0 - MAP/UNMAP MULTIPLE HANDLE PAGES
    AH = 50h
    AL = subfunction
        00h use physical page numbers
        01h use segment addresses
    DX = handle
    CX = number of entries in array
    DS:SI -> mapping array (see #1892)
Return: AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #1891)
SeeAlso: AH=40h

Format of EMS mapping array entry:
Offset    Size    Description    (Table 1892)
 00h    WORD    logical page number or FFFFh to unmap physical page
 02h    WORD    physical page number or segment address
--------m-6751-------------------------------
INT 67 - LIM EMS 4.0 - REALLOCATE PAGES
    AH = 51h
    DX = handle
    BX = number of pages to be allocated to handle
Return:    AH = status (00h,80h,81h,83h,84h,87h,88h) (see #1893)
    BX = actual number of pages allocated to handle

(Table 1893)
Values for EMS function status:
 00h    successful
 80h    internal error
 81h    hardware malfunction
 83h    invalid handle
 84h    undefined function requested
 87h    more pages requested than present in system
 88h    more pages requested than currently available
 8Ah    invalid logical page number encountered
 8Bh    invalid physical page number encountered
 8Fh    undefined subfunction
 90h    undefined attribute type
 91h    feature not supported
 A0h    no such handle name
 A1h    duplicate handle name
--------m-6752-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE ATTRIBUTES
    AH = 52h
    AL = subfunction
        00h get handle attributes
        Return: AL = attribute
                00h handle is volatile
                01h handle is nonvolatile
        01h set handle attributes
        BL = new attribute (see returned AL)
        02h get attribute capability
        Return: AL = attribute capability
                00h only volatile handles supported
                01h both volatile and non-volatile supported
    DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Fh-91h) (see #1891)
SeeAlso: AH=53h
--------m-6753-------------------------------
INT 67 - LIM EMS 4.0 - GET/SET HANDLE NAME
    AH = 53h
    AL = subfunction
        00h get handle name
           ES:DI -> 8-byte buffer for handle name
        01h set handle name
           DS:SI -> 8-byte handle name
    DX = handle
Return: AH = status (00h,80h,81h,83h,84h,8Fh,A1h) (see #1891)
SeeAlso: AH=52h
--------m-6754-------------------------------
INT 67 - LIM EMS 4.0 - GET HANDLE DIRECTORY
    AH = 54h
    AL = subfunction
        00h get handle directory
           ES:DI -> buffer for handle directory (see #1894)
        01h search for named handle
           DS:SI -> 8-byte name
        02h get total number of handles
Return: AL = number of entries in handle directory (subfunction 00h)
    DX = value of named handle (subfunction 01h)
    BX = total number of handles (subfunction 02h)
    AH = status (00h,80h,81h,84h,8Fh,A0h,A1h) (see also #1893)
        A1h a handle found had no name

Format of EMS handle directory entry:
Offset    Size    Description    (Table 1894)
 00h    WORD    handle
 02h  8 BYTEs    handle's name
--------m-6755-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND JUMP
    AH = 55h
    AL = subfunction
        00h physical page numbers provided by caller
        01h segment addresses provided by caller
    DX = handle
    DS:SI -> structure containing map and jump address
Return: (at target address unless error)
    AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #1891)
SeeAlso: AH=56h
--------m-6756-------------------------------
INT 67 - LIM EMS 4.0 - ALTER PAGE MAP AND CALL
    AH = 56h
    AL = subfunction
        00h physical page numbers provided by caller
        DX = handle
        DS:SI -> structure containing page map and call address
        01h segment addresses provided by caller
        DX = handle
        DS:SI -> structure containing page map and call address
        02h get page map stack space required
        Return: BX = stack space required
Return: (if successful, the target address is called.  Use a RETF to return and
     restore mapping context)
    AH = status (00h,80h,81h,83h,84h,8Ah,8Bh,8Fh) (see #1891)
SeeAlso: AH=55h
--------m-6756FF-----------------------------
INT 67 - RM386 v6.00 - ???
    AX = 56FFh
    DS:SI -> ???
    ???
Return: ???
--------m-6757-------------------------------
INT 67 - LIM EMS 4.0 - MOVE/EXCHANGE MEMORY REGION
    AH = 57h
    AL = subfunction
        00h move memory region
        01h exchange memory region
    DS:SI -> structure describing source and destination (see #1896)
Return: AH = status (see #1895)
Note:    source and destination may overlap for a move, in which case the copy
      direction is chosen such that the destination receives an intact copy
      of the source region

(Table 1895)
Values for EMS function status:
 00h    successful
 80h    internal error
 81h    hardware failure
 83h    invalid handle
 84h    undefined function requested
 8Ah    invalid logical page number encountered
 8Fh    undefined subfunction
 92h    successful, but a portion of the source region has been overwritten
 93h    length of source or destination region exceeds length of region
      allocated to either source or destination handle
 94h    conventional and expanded memory regions overlap
 95h    offset within logical page exceeds size of logical page
 96h    region length exceeds 1M
 97h    source and destination EMS regions have same handle and overlap
 98h    memory source or destination type undefined
 A2h    attempted to wrap around 1M conventional address space

Format of EMS copy data:
Offset    Size    Description    (Table 1896)
 00h    DWORD    region length in bytes
 04h    BYTE    source memory type
        00h conventional
        01h expanded
 05h    WORD    source handle (0000h if conventional memory)
 07h    WORD    source initial offset (within page if EMS, segment if convent)
 09h    WORD    source initial segment (conv mem) or logical page (EMS)
 0Bh    BYTE    destination memory type
        00h conventional
        01h expanded
 0Ch    WORD    destination handle
 0Eh    WORD    destination initial offset
 10h    WORD    destination initial segment or page
--------m-6758-------------------------------
INT 67 - LIM EMS 4.0 - GET MAPPABLE PHYSICAL ADDRESS ARRAY
    AH = 58h
    AL = subfunction
        00h get mappable physical address array
        ES:DI -> buffer to be filled with array
        01h get number of entries in m.p.a. array
Return: CX = number of entries in array
    AH = status (00h,80h,81h,84h,8Fh) (see #1895)
Note:    the returned array for subfunction 00h is filled in physical segment
      address order

Format of EMS mappable physical address entry:
Offset    Size    Description    (Table 1897)
 00h    WORD    physical page segment
 02h    WORD    physical page number
--------m-675857-----------------------------
INT 67 U - NETROOM??? - ???
    AX = 5857h
    BX = function??? (0057h,0059h,0159h seen)
    ???
Return: ???
Note:    BX=0059h appears to be analogous to AX=5800h and BX=0159h appears to
      be analogous to AX=5801h; BX=0057h appears to indicate whether
      AX=580xh or AX=5857h/BX=0x59h should be used
SeeAlso: AX=5BF0h
--------m-6759-------------------------------
INT 67 - LIM EMS 4.0 - GET EXPANDED MEMORY HARDWARE INFORMATION
    AH = 59h
    AL = subfunction
        00h get hardware configuration array
        ES:DI -> buffer to be filled with array (see #1898)
        01h get unallocated raw page count
        Return: BX = unallocated raw pages
            DX = total raw pages
Return: AH = status (see also AH=58h"EMS 4.0")
        A4h access denied by operating system
Note:    subfunction 00h is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system

Format of EMS hardware configuration array:
Offset    Size    Description    (Table 1898)
 00h    WORD    size of raw EMM pages in paragraphs
 02h    WORD    number of alternate register sets
 04h    WORD    size of mapping-context save area in bytes
 06h    WORD    number of register sets assignable to DMA
 08h    WORD    DMA operation type
        0000h DMA with alternate register sets
        0001h only one DMA register set
--------m-675A-------------------------------
INT 67 - LIM EMS 4.0 - ALLOCATE STANDARD/RAW PAGES
    AH = 5Ah
    AL = subfunction
        00h allocate standard pages
        01h allocate raw pages
    BX = number of pages to allocate
Return: DX = handle
    AH = status (00h,80h,81h,84h,85h,87h,88h,8Fh) (see #1891)
--------m-675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET
    AH = 5Bh
    AL = subfunction
        00h get alternate map register set
        Return: BL = current active alternate map register set number
            ES:DI -> map register context save area if BL=00h
        01h set alternate map register set
        BL = new alternate map register set number
        ES:DI -> map register context save area if BL=0
        02h get alternate map save array size
        Return: DX = array size in bytes
        03h allocate alternate map register set
        Return: BL = number of map register set; 00h = not supported
        04h deallocate alternate map register set
        BL = number of alternate map register set
Return: AH = status (00h,80h,81h,84h,8Fh,9Ah-9Dh,A3h,A4h) (see #1899)
Note:    this function is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system

(Table 1899)
Values for EMS function status:
 00h    successful
 80h    internal error
 81h    hardware malfunction
 84h    undefined function requested
 8Fh    undefined subfunction
 9Ah    specified alternate map register or DMA register set not supported
 9Bh    all alternate map register or DMA register sets currently allocated
 9Ch    alternate map register or DMA register sets not supported
 9Dh    undefined or unallocated alternate map register/DMA register set
 9Eh    dedicated DMA channels not supported
 9Fh    specified dedicated DMA channel not supported
 A3h    source array corrupted
 A4h    operating system denied access
--------m-675B-------------------------------
INT 67 - LIM EMS 4.0 - ALTERNATE MAP REGISTER SET - DMA REGISTERS
    AH = 5Bh
    AL = subfunction
        05h allocate DMA register set
        Return: BL = DMA register set number, 00h if not supported
        06h enable DMA on alternate map register set
           BL = DMA register set number
           DL = DMA channel number
        07h disable DMA on alternate map register set
           BL = DMA register set number
        08h deallocate DMA register set
           BL = DMA register set number
Return: AH = status (00h,80h,81h,84h,8Fh,9Ah-9Fh,A3h,A4h) (see #1899)
Note:    this function is for use by operating systems only, and can be
      enabled or disabled at any time by the operating system
--------m-675BE0-----------------------------
INT 67 - MICEMM v4D, RM386 - GET LINEAR ADDRESS OF MEMORY
    AX = 5BE0h
    ES:BX -> memory for which to get linear address
Return: AH = 00h
    CX:DX = linear address of physical memory corresponding to ES:BX
Program: RAM-MAN/386 is the memory manager included with Helix's Netroom;
      MICEMM is a memory manager for some Micronics motherboards
Note:    this has been superceded by AX=DE06h, which should be used instead
SeeAlso: AX=5BF0h,AX=5BF1h,AX=DE06h
--------m-675BE1-----------------------------
INT 67 - RM386 v6.00+ - GET MEMORY MANAGER SIZE
    AX = 5BE1h
Return: AH = 00h
    CX = code and data size in bytes
    DX:BX = physical address of RM386 code
    DI:SI = total size of RM386 area including handle tables
    BP = number of additional pages (high DOS, etc.)
SeeAlso: AX=5BE0h,AX=5BE2h
--------m-675BE2-----------------------------
INT 67 - RM386 v6.00+ - GET INTERRUPT VECTORS
    AX = 5BE2h
Return: DS:SI -> V86-mode table (see #1900)
    ES:BX -> ??? (undoc, middle of device driver interrupt routine!)
SeeAlso: AX=5BE0h,AX=5BE1h

Format of RM386 V86-mode table:
Offset    Size    Description    (Table 1900)
 00h    DWORD    original INT 13 vector
 04h    DWORD    original INT 15 vector
 08h    DWORD    original INT 19 vector
 0Ch    DWORD    original INT 21 vector
 10h    DWORD    original INT 4B vector
 14h    DWORD    original INT 67 vector
--------m-675BF0-----------------------------
INT 67 - MICEMM v4D, RM386 - INSTALLATION CHECK
    AX = 5BF0h
Return: AH = 00h if MICEMM or RM386 present
        BX = code segment of driver
Program: MICEMM is the Micronics Expanded Memory Manager; RM386 is the memory
      manager included in Helix Software's Netroom
SeeAlso: AH=3Fh,AX=5BE0h,AX=5BF1h
--------m-675BF1-----------------------------
INT 67 - MICEMM v4D, RM386 - GET ADDRESS MAP
    AX = 5BF1h
    ES:BX -> 256-byte (MICEMM) or 512-byte (RM386) buffer for memory types
Return: AH = 00h
    ES:BX buffer filled (see #1901)
Note:    each byte in the buffer specifies the type of a 4K page of memory
SeeAlso: AX=5BE0h,AX=5BF0h

(Table 1901)
Values for MICEMM/RM386 memory type:
 00h    unused (MICEMM), RAM/available (RM386)
 02h    DOS extension (XMS UMB)
 04h    shadowed ROM
 08h    mappable EMS
 10h    page frame
 20h    ROM
 40h    reserved (video memory, etc)
 80h    RAM (MICEMM), Windows UMB (RM386)
--------m-675BF2-----------------------------
INT 67 - RM386 - GET RM386 INTERNAL DATA
    AX = 5BF2h
    CX = size of buffer
    DS:SI -> buffer for internal data
    (documentation says ES:BX -> buffer, SI = offset within RM386)
Return: buffer filled
Note:    the data returned by this function is release-specific
SeeAlso: AX=5BF0h
--------m-675BF3-----------------------------
INT 67 - RM386 - RETURN TO REAL MODE
    AX = 5BF3h
Return: nothing
Note:    use AX=5DE0h instead of this functin
SeeAlso: AX=5BF0h,AX=5DE0h
--------m-675BF4-----------------------------
INT 67 - RM386 v6.00 - GET RM386 GLOBAL FLAGS
    AX = 5BF4h
Return: AH = 00h
    BX = global flags 1 (see #1902)
    CX = global flags 2 (see #1903)
    DX = global flags 3 (see #1904)
    SI = global flags 4 (see #1905)
SeeAlso: AX=5BF0h

Bitfields for RM386 global flags 1:
Bit(s)    Description    (Table 1902)
 0-3    reserved
 4    V86 mode
 5    reserved
 6    80386 or higher CPU
 7,8    reserved
 9    A20 enabled at startup
 10    "HIGH_IO"
 11    ROM
 12    large frame
 13,14    reserved
 15    PS/2-style A20 control

Bitfields for RM386 global flags 2:
Bit(s)    Description    (Table 1903)
 0    HMA in use
 1    XMS present
 2    using XMS driver memory
 3    HIGH (NEAT only)
 4-7    reserved
 8    NOBKTRAP
 9    NORESET
 10    ALTMAP
 11    NOFRAME
 12-15    reserved

Bitfields for RM386 global flags 3:
Bit(s)    Description    (Table 1904)
 0    NOTEST
 1    NOEBDA
 2    Windows3 support
 3    system board mouse
 4    DISKBUF
 5    EBDALOW
 6    A20 global enable flag
 7    A20 flag
 8    EBDA moved to stub
 9    VXD file was found
 10    reserved
 11    NOBOOTMAP
 12    AUTO
 13    PS/2 machine
 14    Compaq ROM merge active
 15    NOHMA set

Bitfields for RM386 global flags 4:
Bit(s)    Description    (Table 1905)
 0    "NOV8259" don't virtualize interrupt controller
 1    NOSCSI
 2    NOSCAN
 3    NOTR
 4    ALTBOOT
 5    NOCOMPQ
 6    KB2TRAP
 7    DESHADOW
 8    Video 7 VGA detected
 9    reserved
 10    NOVGA
 11    NOPS2
 12    DEBUG
 13    NOVKB
 14,15    reserved
--------m-675BF5-----------------------------
INT 67 - RM386 v6.00 - GET RM386 EMS HANDLE COUNT
    AX = 5BF5h
Return: AH = status
        00h successful
        BX = current number of allocated EMS handles
        84h function not available
SeeAlso: AX=5BF0h
--------m-675C-------------------------------
INT 67 - LIM EMS 4.0 - PREPARE EXPANDED MEMORY HARDWARE FOR WARM BOOT
    AH = 5Ch
Return: AH = status (see #1906)

(Table 1906)
Values for EMS function status:
 00h    successful
 80h    internal error
 81h    hardware malfunction
 84h    undefined function requested
--------m-675D-------------------------------
INT 67 - LIM EMS 4.0 - ENABLE/DISABLE OS FUNCTION SET FUNCTIONS
    AH = 5Dh
    AL = subfunction
        00h enable OS Function Set
        01h disable OS Function Set
        02h return access key (resets memory manager, returns access key at
        next invocation)
    BX,CX = access key returned by first invocation
Return: BX,CX = access key, returned only on first invocation of function
    AH = status (see also AH=5Ch)
        8Fh undefined subfunction
        A4h operating system denied access
--------m-675D03-----------------------------
INT 67 u - Nanosoft MD386 - INTERNAL INITIALIZATION
    AX = 5D03h
    ???
Return: ???
Program: MD386 is a subset EMS memory manager by Nanosoft specifically designed
      for use with the MultiDOS Plus multitasker
SeeAlso: AX=5D04h,AX=5E00h
--------m-675D04-----------------------------
INT 67 - Nanosoft MD386 - GET ALTERNATE MAP STRUCTURE
    AX = 5D04h
    BX = alternate register set number
    ES:DI -> 1024-byte buffer for map structure
Return: AH = status (see #1891)
    buffer filled if AH=00h
Note:    used for debugging purposes
SeeAlso: AX=5D05h
--------m-675D05-----------------------------
INT 67 - Nanosoft MD386 - GET INTERNAL HANDLE TABLE
    AX = 5D05h
    BX = handle number
    ES:DI -> 1024-byte buffer for handle table
Return: AH = status (see #1891)
    buffer filled if AH=00h
Note:    used for debugging purposes
SeeAlso: AX=5D04h
--------m-675DE0-----------------------------
INT 67 - RM386 - DISABLE RM386
    AX = 5DE0h
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE1h
--------m-675DE1-----------------------------
INT 67 - RM386 - ENABLE RM386
    AX = 5DE1h
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE0h
--------m-675DE2-----------------------------
INT 67 - RM386 - GET PAGE TABLE
    AX = 5DE2h
    ES:DI -> 1088-byte buffer for page table
Return: ES:DI buffer filled
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE3h
--------m-675DE3-----------------------------
INT 67 - RM386 - SET PAGE TABLE
    AX = 5DE3h
    ES:DI -> 1088-byte buffer containing page table
Notes:    only the access bits of the page table are used, the remainder is
      ignored
    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE2h
--------m-675DE4-----------------------------
INT 67 - RM386 - SET WRITE-PROTECTION FOR PAGE IN FIRST MEGABYTE
    AX = 5DE4h
    BL = page number
    BH = access (00h read-only, 01h read-write)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
--------m-675DE5-----------------------------
INT 67 - RM386 - MAP PHYSICAL PAGE TO PHYSICAL SEGMENT
    AX = 5DE5h
    EBX = physical page number
    DX = page number in first megabyte to be remapped (linear-addr SHR 12)
Return: AH = status
        00h successful
        8Bh invalid destination page (not in first megabyte)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE6h
--------m-675DE6-----------------------------
INT 67 - RM386 - MAP LOGICAL 4K PAGE TO PHYSICAL SEGMENT
    AX = 5DE6h
    BX = logical page number in 4K pages from beginning of memory for EMS
          handle
    CX = segment in first megabyte to be remapped
    DX = previously-allocated EMS handle
Return: AH = status
        00h successful
        83h invalid handle
        8Ah invalid logical page (out of handle's range)
        8Bh invalid destination page (not in first megabyte)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE5h
--------m-675DE7-----------------------------
INT 67 - RM386 - SET PAGE TABLE BITS FOR RANGE OF PAGES
    AX = 5DE7h
    BL = page table bits to be set (bits 2-0 = U/S, R/W, P)
    CX = number of pages to set
    DX = first page number to set (in first megabyte)
Return: AH = status
        00h successful
        8Bh invalid destination page (not in first megabyte)
        A5h invalid page bits
        A6h invalid page count (overflows first megabyte)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
--------m-675DE8-----------------------------
INT 67 - RM386 - GET PARTIAL PAGE TABLE
    AX = 5DE8h
    BX = starting page number in first megabyte+HMA (0000h-010Fh)
    CX = number of page table entries to get
    ES:DI -> buffer for DWORD page table entries
Return: AH = status (00h successful, 8Bh invalid page)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE9h
--------m-675DE9-----------------------------
INT 67 - RM386 - SET PARTIAL PAGE TABLE
    AX = 5DE9h
    BX = starting page number in first megabyte+HMA (0000h-010Fh)
    CX = number of page table entries to get
    DS:SI -> buffer of DWORD page table entries
Return: AH = status (00h successful, 8Bh invalid destination page)
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DE8h
--------m-675DEA-----------------------------
INT 67 - RM386 - V86-MODE I/O PORT TRAPPING CONTROL
    AX = 5DEAh
    BX = function
        00h globally disable V86-mode trapping
        01h globally enable V86-mode trapping
        CL = interrupt to use for trapping
        02h get I/O trapping state
Return: AH = status
        00h successful
        BX = current trapping state (function 02h)
            0000h disabled, 0001h enabled
        CX = interrupt used as trap interrupt (functions 00h and 02h)
Notes:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
    when I/O trapping is enabled and I/O port access occurs, RM386
      simulates an INT instruction for the specified interrupt; the
      interrupt handler is responsible for decoding the trapped instruction
      and performing the appropriate action.  INT 2C/AX=002Dh provides a
      similar but more-easily used interface.
SeeAlso: AX=5DEBh,AH=EFh"RM386",INT 2C/AX=002Dh
--------m-675DEB-----------------------------
INT 67 - RM386 - V86-MODE I/O TRAPPING PORT CONTROL
    AX = 5DEBh
    BX = function
        00h disable V86-mode trapping for specified port
        01h enable V86-mode trapping for specified port
        02h get V86-mode trapping state for specified port
    DX = port for which to enable/disable/query trapping
Return: AH = status
        00h successful
        BX = current trapping state (00h off, 01h on) (function 02)
        A7h invalid port ID
        A8h reserved port--cannot trap/untrap (DMA/INT/KBD controllers)
Notes:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DEAh
--------m-675DFD-----------------------------
INT 67 U - RM386 v6.00 - ???
    AX = 5DFDh
    ???
Return: ???
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DFEh
--------m-675DFE-----------------------------
INT 67 U - RM386 v6.00 - ???
    AX = 5DFEh
    ???
Return: ???
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DFDh
--------m-675DFF-----------------------------
INT 67 U - RM386 v6.00 - ???
    AX = 5DFFh
    ???
Return: ???
Note:    RM386 traps this function on the initial transition to protected
      mode caused by the INT instruction, which means it can not be
      overridden simply by hooking the interrupt
SeeAlso: AX=5DFDh,AX=5DFEh
--------m-675E00-----------------------------
INT 67 - Nanosoft MD386 - SET HARDWARE BREAKPOINT
    AX = 5E00h
    DH = breakpoint number (0-3)
    DL = breakpoint attributes (used to set DR7)
    CX:BX = linear address of breakpoint
SeeAlso: AX=5D03h,AX=5E01h
--------m-675E01-----------------------------
INT 67 - Nanosoft MD386 - GET HARDWARE DEBUG REGISTER
    AX = 5E01h
    BL = register number (0-3,7)
Return: CX:BX = value of specified DRx register
SeeAlso: AX=5E00h
--------m-675E02-----------------------------
INT 67 - Nanosoft MD386 - SET DEBUG EXCEPTION HANDLER
    AX = 5E02h
    CX:BX -> exception handler
Note:    the specified exception handler is called with a simulated interrupt
      whenever a debug exception occurs which was caused by a hardware
      breakpoint set with the debug registers
SeeAlso: AX=5E04h,AX=5E05h
--------m-675E03-----------------------------
INT 67 - Nanosoft MD386 - ENABLE/DISABLE MEMORY WRITE PROTECTION
    AX = 5E03h
    BL = register map set number
    BH = new state (00h read-only, else read-write)
    CX = linear page number (linear address SHR 12)
Note:    setting write protection in map set 0 will cause the setting to become
      the default for newly-allocated map sets
--------m-675E04-----------------------------
INT 67 - Nanosoft MD386 - GET DEBUG EXCEPTION
    AX = 5E04h
Return: BL = debug exception (low byte of DR6 register)
SeeAlso: AX=5E02h,AX=5E05h
--------m-675E05-----------------------------
INT 67 - Nanosoft MD386 - IGNORE NEXT DEBUG EXCEPTION
    AX = 5E05h
Note:    may be required when using AX=5E02h for handling instruction
      breakpoints
SeeAlso: AX=5E02h,AX=5E04h
--------m-6760-------------------------------
INT 67 - EEMS - GET PHYSICAL WINDOW ARRAY
    AH = 60h
    ES:DI -> buffer
Return: AH = status (see also AH=40h)
    AL = number of entries
    buffer at ES:DI filled
--------m-6761-------------------------------
INT 67 - EEMS - GENERIC ACCELERATOR CARD SUPPORT
    AH = 61h
    ???
Return: ???
Note:    can be used by accelerator card manufacturer to flush RAM cache,
      ensuring that the cache accurately reflects what the processor would
      see without the cache.
--------m-6768-------------------------------
INT 67 - EEMS - GET ADDRESSES OF ALL PAGE FRAMES IN SYSTEM
    AH = 68h
    ES:DI -> buffer
Return: AH = status (see also AH=40h)
    AL = number of entries
    buffer at ES:DI filled
Note:    equivalent to LIM 4.0 function 58h
--------m-6769-------------------------------
INT 67 - EEMS - MAP PAGE INTO FRAME
    AH = 69h
    AL = frame number
    BX = page number
    DX = handle
Return: AH = status (see also AH=40h)
Note:    similar to EMS function 44h
SeeAlso: AH=44h,AH=50h,AH=6Ah
--------m-676A-------------------------------
INT 67 - EEMS - PAGE MAPPING
    AH = 6Ah
    AL = subfunction
        00h save partial page map
        CH = first page frame
        CL = number of frames
        ES:DI -> buffer which is to be filled
        01h restore partial page map
        CH = first page frame
        CL = number of frames
        DI:SI -> previously saved page map
        02h save and restore partial page map
        CH = first page frame
        CL = number of frames
        ES:DI = buffer for current page map
        DI:SI = new page map
        03h get size of save array
        CH = first page frame
        CL = number of frames
        Return: AL = size of array in bytes
        04h switch to standard map register setting
        05h switch to alternate map register setting
        06h deallocate pages mapped to frames in conventional memory
        CH = first page frame
        CL = number of frames
Return: AH = status (see #1891)
Note:    similar to EMS function 4Eh, except that a subrange of pages can be
      specified
SeeAlso: AH=69h
--------m-676B-------------------------------
INT 67 - DESQview 2.42-2.53 - BUG
    AH = 6Bh
Note:    the EMM.DVR portion of DESQview branches to a random location on this
      function due to a fencepost error
--------m-67DD-------------------------------
INT 67 - Quadtel QMAPS - API
    AH = DDh
    AL = function
    ???
Return: ???
Notes:    details are not yet available
    Hewlett-Packard's HPMM.SYS is a licensed version of QMAPS, and thus
      supports this API
SeeAlso: AH=3Fh,AX=FFA5h
--------E-67DE00-----------------------------
INT 67 - Virtual Control Program Interface - INSTALLATION CHECK
    AX = DE00h
Return: AH = status
        00h VCPI is present
        BH = major version number
        BL = minor version number
        nonzero  VCPI not present
BUG:    MS Windows 3.00 is reported to "object violently" to this call.
SeeAlso: INT 2F/AX=1687h
--------E-67DE01-----------------------------
INT 67 - Virtual Control Program Interface - GET PROTECTED MODE INTERFACE
    AX = DE01h
    ES:DI -> 4K page table buffer
    DS:SI -> three descriptor table entries in GDT
        first becomes code segment descriptor, other two for use by
          main control program
Return: AH = 00h successful
        DI -> first unused page table entry in buffer
        EBX -> protected mode entry point in code segment
    AH = nonzero  failed
Note:    protected mode entry point may be called with AX=DE00h-DE05h and
      AX=DE0Ch (in each case, all other registers as appropriate for
      the function)
SeeAlso: INT 2F/AX=1687h,INT 67/AH=3Fh

(Table 1907)
Call QEMM v6.03 protected mode entry point additionally with:
    AX = DF00h ???
        ???
        Return: ???
    AX = DF01h ???
        ???
        Return: ???
--------E-67DE02-----------------------------
INT 67 - Virtual Control Program Interface - GET MAX PHYSICAL MEMORY ADDRESS
    AX = DE02h
Return: AH = 00h  successful
        EDX = physical address of highest 4K memory page
    AH nonzero: failed
SeeAlso: AH=3Fh
--------E-67DE03-----------------------------
INT 67 - Virtual Control Program Interface - GET NUMBER OF FREE 4K PAGES
    AX = DE03h
Return: AH = 00h  successful
        EDX = number of free 4K pages
    AH nonzero: failed
Notes:    returns total number of pages available to ALL tasks in system
    also available in protected mode by calling the protected-mode VCPI
      entry point (see AX=DE01h,#1907)
SeeAlso: AX=DE04h
--------E-67DE04-----------------------------
INT 67 - Virtual Control Program Interface - ALLOCATE A 4K PAGE
    AX = DE04h
Return: AH = 00h successful
        EDX = physical address of allocated page
    AH nonzero: failed
Notes:    the client program is responsible for freeing all memory allocated
      with this call before terminating
    also available in protected mode by calling the protected-mode VCPI
      entry point (see AX=DE01h,#1907)
SeeAlso: AH=3Fh,AX=DE03h,AX=DE05h
--------E-67DE05-----------------------------
INT 67 - Virtual Control Program Interface - FREE 4K PAGE
    AX = DE05h
    EDX = physical address of 4K page
Return: AH = status
        00h successful
        nonzero failed
Note:    also available in protected mode by calling the protected-mode VCPI
      entry point (see AX=DE01h,#1907)
SeeAlso: AH=3Fh,AX=DE04h
--------E-67DE06-----------------------------
INT 67 - Virtual Control Program Interface - GET PHYS ADDR OF PAGE IN FIRST MB
    AX = DE06h
    CX = page number (linear address shifted right 12 bits)
Return: AH = status
        00h successful
        EDX = physical address of page
        nonzero invalid page number (AH = 8Bh recommended)
SeeAlso: AX=5BE0h
--------E-67DE07-----------------------------
INT 67 - Virtual Control Program Interface - READ CR0
    AX = DE07h
Return: AH = 00h
    EBX = value of Control Register 0
SeeAlso: AH=3Fh,AX=DE07h
--------E-67DE08-----------------------------
INT 67 - Virtual Control Program Interface - READ DEBUG REGISTERS
    AX = DE08h
    ES:DI -> array of 8 DWORDs
Return: AH = 00h
    buffer filled with DR0 first, DR7 last, DR4 and DR5 unused
SeeAlso: AH=3Fh,AX=DE09h
--------E-67DE09-----------------------------
INT 67 - Virtual Control Program Interface - SET DEBUG REGISTERS
    AX = DE09h
    ES:DI -> array of 8 DWORDs holding new values of debug registers
Return: AH = 00h
Note:    values for DR4 and DR5 ignored
SeeAlso: AH=3Fh,AX=DE08h
--------E-67DE0A-----------------------------
INT 67 - Virtual Control Program Interface - GET 8259 INTERRUPT VECTOR MAPPINGS
    AX = DE0Ah
Return: AH = 00h successful
        BX = first vector used by master 8259 (IRQ0)
        CX = first vector used by slave 8259 (IRQ8)
    AH nonzero: failed
Note:    CX is undefined in systems without a slave 8259
SeeAlso: AX=DE0Bh,INT 21/AX=250Ch,INT 31/AX=0400h
--------E-67DE0B-----------------------------
INT 67 - Virtual Control Program Interface - SET 8259 INTERRUPT VECTOR MAPPINGS
    AX = DE0Bh
    BX = first vector used by master 8259
    CX = first vector used by slave 8259
    interrupts disabled
Return: AH = 00h successful
    AH nonzero: failed
Notes:    This call merely informs the server that the client has changed the
      interrupt mappings.  The client may not change the mappings if they
      have already been changed by the server or another client, and is
      responsible for restoring the original mappings before terminating.
SeeAlso: AX=DE0Ah,INT 2C/AX=002Ah
--------E-67DE0C-----------------------------
INT 67 - Virtual Control Program Interface - SWITCH TO PROTECTED MODE
    AX = DE0Ch
    ESI = linear address in first megabyte of values for system registers
    interrupts disabled
Return: interrupts disabled
    GDTR, IDTR, LDTR, TR loaded
    SS:ESP must have at least 16 bytes space, and the entry point is
          required to set up a new stack before enabling interrupts
    EAX, ESI, DS, ES, FS, GS destroyed
Note:    in protected mode, calling the protected-mode VCPI entry point with
      AX = DE0Ch
      DS = segment selector mapping entire linear address space obtained
          via AX=DE01h
      SS:ESP in first megabyte of linear memory
      STACK:QWORD  return address from FAR call to 32-bit segment
        DWORD  EIP
        DWORD  CS
        DWORD  reserved for EFLAGS
        DWORD  ESP
        DWORD  SS
        DWORD  ES
        DWORD  DS
        DWORD  FS
        DWORD  GS
      and interrupts disabled, will switch to virtual86 mode with
        interrupts disabled, all segment registers loaded, and EAX
        destroyed.
SeeAlso: AH=3Fh,INT 15/AH=89h,INT 38/AH=10h

Format of system register values for switch to protected mode:
Offset    Size    Description    (Table 1908)
 00h    DWORD    value for CR3
 04h    DWORD    linear address in first megabyte of value for GDTR
 08h    DWORD    linear address in first megabyte of value for IDTR
 0Ch    WORD    value for LDTR
 0Eh    WORD    value for TR
 10h    PWORD    CS:EIP of protected mode entry-point
--------m-67DE0F-----------------------------
INT 67 - Netroom3 - ???
    AX = DE0Fh
    ???
Return: ???
Note:    called by Netroom's DPMI.EXE
--------m-67EF-------------------------------
INT 67 - RM386 v6.00+ - EXECUTE XMS FUNCTION
    AH = EFh
    AL = function (00h-12h,80h-8Fh)
    other register as appropriate for XMS function
Return: varies by function (see INT 2F/AX=4310h)
Note:    these functions appear to be equivalent to the XMS functions with the
      same numbers
SeeAlso: AX=5DFFh"RM386",INT 2F/AX=4310h
--------m-67FFA5-----------------------------
INT 67 - Microsoft EMM386.EXE v4.20+ - INSTALLATION CHECK
    AX = FFA5h
Return: AX = 845Ah/84A5h if loaded
        BX:CX -> API entry point
Notes:    this call is available even if EMM386 is not providing EMS
    the returned AX is 845Ah inside of MSWindows, 84A5h under bare DOS
    if no other program has hooked INT 67, an alternate installation
      check is to test for the string
      "MICROSOFT EXPANDED MEMORY MANAGER 386" at offset 14h in the INT 67
      handler's segment; the word immediately preceding this string
      contains the offset of the API entry point
SeeAlso: AH=3Fh,AX=FFA5h/BX=4345h,INT 21/AX=4402h"EMM386.EXE"

(Table 1909)
Call EMM386.EXE API entry point with:
    AH = 00h get memory manager's status
        Return: AH = status
            bit 0: not active (OFF)
            bit 1: in "Auto" mode
    AH = 01h set memory manager's state
        AL = new state (00h ON, 01h OFF, 02h AUTO)
    AH = 02h Weitek coprocessor support
        AL = subfunction
        00h get Weitek support state
            Return: AL = status
                bit 0: Weitek coprocessor is present
                bit 1: Weitek support is enabled
        01h turn on Weitek support
        02h turn off Weitek support
     --- v4.20-4.41 only ---
    AH = 03h Windows support???
        AL = subfunction (00h, 01h)
    AH = 04h print copyright notice to standard output
         (using INT 21/AH=09h)
    AH = 05h print available report
         (the one shown when running EMM386 from the DOS prompt)
SeeAlso: #0621 at INT 21/AX=4402h/SF=02h,#1256 at INT 2F/AX=12FFh/BX=0106h
--------m-67FFA5BX4345-----------------------
INT 67 U - Compaq CEMM v5.10+ - PRIVATE API
    AX = FFA5h
    BX = 4345h ("CE")
    DX = subfunction
        0000h unshadow video ROM???
        0001h shadow video ROM???
        0002h map pages
        CX = number of pages (00h=one)
        ESI = linear address of first page to map into address space
        EDI = linear starting address at which pages are to be visible
        0003h get ???
        Return: DX = ??? (0-2)
        0004h BUG: crashes system due to fencepost error
Return: AH = 84h
    AL = status (84h = error, FFh = success)
Note:    if BX <> 4345h or DX > 0004h on entry, CEMM behaves identically to
      Microsoft's EMM386 (see AX=FFA5h"EMM386")
SeeAlso: AX=FFA5h"EMM386",#0621 at INT 21/AX=4402h/SF=02h,#1909
--------I-68---------------------------------
INT 68 - Sangoma CCPOP 3270 resident module
SeeAlso: INT 67"Sangoma",INT 92"Sangoma"
--------N-68---------------------------------
INT 68 - Novell NetWare LU6.2
Note:    the installation check consists of testing for the signature string
      "APPC/PC" nine bytes before the interrupt handler
SeeAlso: AH=01h/SF=1B00h,AH=FAh
--------N-6801--SF1B00-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DISPLAY
    AH = 01h subfn 1B00h
    DS:DX -> control block (see #1910)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2B00h,INT 68"Novell"

Format of APPC/PC "DISPLAY" control block:
Offset    Size    Description    (Table 1910)
 00h 12 BYTEs    reserved
 0Ch    WORD    1B00h (verb "DISPLAY")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah  8 BYTEs    (big-endian) logical unit ID
 22h  8 BYTEs    (big-endian) partner logical unit name
 2Ah  8 BYTEs    (big-endian) mode name
 32h    BYTE    logical unit session limit
 33h    BYTE    partner logical unit session limit
 34h    BYTE    node maximum negotiable session limit
 35h    BYTE    current session limit
 36h    BYTE    minimum negotiated winner limit
 37h    BYTE    maximum negotiated loser limit
 38h    BYTE    active session count
 39h    BYTE    active CONWINNER session count
 3Ah    BYTE    active CONLOSER session count
 3Bh    BYTE    session termination count
 3Ch    BYTE    bit 7: SESSION_TERMINATION_TARGET_DRAIN
        bit 6: SESSION_TERMINATION_SOURCE_DRAIN

(Table 1911)
Values for APPC/PC return code:
 0000h    successful
 0001h    BAD_TP_ID
 0002h    BAD_CONV_ID
 0003h    bad logical unit ID
 0008h    no physical unit attached
 0110h    bad state
 01B1h    BAD_PART_LUNAME
 01B2h    bad mode name
 0201h    physical unit already active
 0211h    logical unit already active
 0212h    BAD_PART_SESS
 0213h    BAD_RU_SIZES
 0214h    BAD_MODE_SESS
 0216h    BAD_PACING_CNT
 0219h    EXTREME_RUS
 021Ah    SNASVCMG_1
 0223h    SSCP_CONNECTED_LU
 0230h    invalid change
 0243h    too many TPs
 0272h    adapter close failure
 0281h    GET_ALLOC_BAD_TYPE
 0282h    unsuccessful
 0283h    DLC failure
 0284h    unrecognized DLC
 0286h    duplicate DLC
 0301h    SSCP_PU_SESSION_NOT_ACTIVE
 0302h    data exceeds RU size
 0401h    invalid direction
 0402h    invalid type
 0403h    segment overlap
 0404h    invalid first character
 0405h    table error
 0406h    conversion error
 F0010000h    APPC disabled
 F0020000h    APPC busy
 F0030000h    APPC abended
 F0040000h    incomplete
--------N-6801--SF2000-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ATTACH PHYSICAL UNIT
    AH = 01h subfn 2000h
    DS:DX -> control block (see #1912)
Return: control block updated
SeeAlso: AH=01h/SF=2100h,AH=01h/SF=2B00h

Format of APPC/PC "Attach Physical Unit" control block:
Offset    Size    Description    (Table 1912)
 00h 12 BYTEs    reserved
 0Ch    WORD    2000h (verb "Attach Physical Unit")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah    BYTE    version
 1Bh    BYTE    release
 1Ch  8 BYTEs    (big-endian) net name
 24h  8 BYTEs    (big-endian) physical unit name
 2Ch  8 BYTEs    00h
 34h    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
        (see also AH=01h/SF=2100h)
 38h    DWORD    00h
 3Ch    BYTE    00h RETURN_CONTROL: COMPLETE
        01h RETURN_CONTROL: INCOMPLETE
--------N-6801--SF2100-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ATTACH LOGICAL UNIT
    AH = 01h subfn 2100h
    DS:DX -> control block (see #1913)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2200h,AH=01h/SF=2B00h

Format of APPC/PC "Attach Logical Unit" control block:
Offset    Size    Description    (Table 1913)
 00h 12 BYTEs    reserved
 0Ch    WORD    2100h (verb "Attach Logical Unit")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    70  offset to partner logical unit record
 1Ah  8 BYTEs    (big-endian) logical unit name
 22h  8 BYTEs    (big-endian) logical unit ID
 2Ah    BYTE    logical unit local address
 2Bh    BYTE    logical unit session limit
 2Ch    DWORD    pointer to CREATE_TP_EXIT routine,
        FFFFFFFFh = reject incoming ALLOCATEs
        00000000h = queue ALLOCATEs
 30h    DWORD    00h
 34h    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh=don't log errors
 38h    DWORD    00h
 3Ch    BYTE    maximum TPs
 3Dh    BYTE    queue depth
 3Eh    DWORD    pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh=no pswd exit
 42h    DWORD    00h
 46h    WORD    total length of partner records
 48h    var    array of partner logical unit records (see #1914)

Format of APPC/PC partner logical unit record:
Offset    Size    Description    (Table 1914)
 00h    WORD    length of this partner logical unit record
 02h    WORD    42  offset to mode records
 04h  8 BYTEs    (big-endian) partner logical unit name
 0Ch    BYTE    partner logical unit security capabilities
        bit 7: already verified
        bit 6: conversation level security
        bit 5: session level security
 0Dh    BYTE    partner logical unit session limit
 0Eh    WORD    partner logical unit maximum MC_SEND_LL
 10h  8 BYTEs    (big-endian) partner logical unit DLC name
 18h    BYTE    partner logical unit adapter number
 19h 17 BYTEs    (counted string) partner logical unit adapter address
 2Ah    WORD    total length of mode records
 2Ch 16N BYTEs    array of mode records (see #1915)

Format of mode record:
Offset    Size    Description    (Table 1915)
 00h    WORD    16  length of this mode record
 02h  8 BYTEs    (big-endian) mode name
 0Ah    WORD    RU_SIZE high bound
 0Ch    WORD    RU_SIZE low bound
 0Eh    BYTE    mode maximum negotiable session limit
 0Fh    BYTE    pacing size for receive

Routines defined by LU_LU_PASSWORD_EXIT, CREATE_TP_EXIT, and SYSTEM_LOG_EXIT
pointers are called by pushing the DWORD pointer to the verb on the stack and
then performing a FAR call.

Format of ACCESS_LU_LU_PW verb:
Offset    Size    Description    (Table 1916)
 00h 12 BYTEs    reserved
 0Ch    WORD    1900h (verb "ACCESS_LU_LU_PW")
 0Eh  8 BYTEs    (big-endian) logical unit ID
 16h  8 BYTEs    (big-endian) logical unit name
 1Eh  8 BYTEs    (big-endian) partner logical unit name
 26h 17 BYTEs    (counted string) partner fully qualified logical unit name
 37h    BYTE    password available (0=no, 1=yes)
 38h  8 BYTEs    password

Format of CREATE_TP verb:
Offset    Size    Description    (Table 1917)
 00h 12 BYTEs    reserved
 0Ch    WORD    2300h (verb "CREATE_TP")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) sense code (see #1918)
 18h  8 BYTEs    (big-endian) TP ID
 20h  8 BYTEs    (big-endian) logical unit ID
 28h    DWORD    (big-endian) conversation ID
 2Ch    BYTE    0 basic conversation, 1 mapped conversation
 2Dh    BYTE    0 no sync level, 1 confirm
 2Eh    BYTE    reserved
 2Fh 65 BYTEs    (counted string) transaction program name
 70h  6 BYTEs    00h
 76h    WORD    length of ERROR_LOG_DATA to return
 78h    DWORD    pointer to ERROR_LOG_DATA buffer
 7Ch  8 BYTEs    (big-endian) partner logical unit name
 84h 18 BYTEs    (counted string) partner fully qualified logical unit name
 96h  8 BYTEs    (big-endian) mode name
 9Eh 12 BYTEs    00h
 AAh 11 BYTEs    (counted string) password
 B5h 11 BYTEs    (counted string) user ID
 C0h    BYTE    0 verification should be performed
        1 already verified

(Table 1918)
Values for APPC/PC sense code:
 00000000h    Ok
 080F6051h    SECURITY_NOT_VALID
 084B6031h    TP_NOT_AVAIL_RETRY
 084C0000h    TP_NOT_AVAIL_NO_RETRY
 10086021h    TP_NAME_NOT_RECOGNIZED
 10086034h    CONVERSATION_TYPE_MISMATCH
 10086041h    SYNC_LEVEL_NOT_SUPPORTED

Format of SYSLOG verb:
Offset    Size    Description    (Table 1919)
 00h 12 BYTEs    reserved
 0Ch    WORD    2600h (verb "SYSLOG")
 0Eh 10 BYTEs    00h
 18h    WORD    (big-endian) type
 1Ah    DWORD    (big-endian) subtype
 1Eh    DWORD    pointer to ADDITIONAL_INFO
 22h    DWORD    (big-endian) conversation ID
 26h  8 BYTEs    (big-endian) TP ID
 2Eh  8 BYTEs    (big-endian) physical unit or logical unit name
 36h    WORD    length of data
 38h    DWORD    pointer to data
 3Ch    BYTE    00h
--------N-6801--SF2200-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DETACH LOGICAL UNIT
    AH = 01h subfn 2200h
    DS:DX -> control block (see #1920)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2100h,AH=01h/SF=2700h

Format of APPC/PC "Detach Logical Unit" control block:
Offset    Size    Description    (Table 1920)
 00h 12 BYTEs    reserved
 0Ch    WORD    2200h (verb "Detach Logical Unit")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h  8 BYTEs    (big-endian) logical unit ID
 20h    BYTE    00h
--------N-6801--SF2700-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - DETACH PHYSICAL UNIT
    AH = 01h subfn 2700h
    DS:DX -> control block (see #1921)
Return: control block updated
SeeAlso: AH=01h/SF=2000h,AH=01h/SF=2100h,AH=01h/SF=2200h

Format of APPC/PC "Detach Physical Unit" control block:
Offset    Size    Description    (Table 1921)
 00h 12 BYTEs    reserved
 0Ch    WORD    2700h (verb "Detach Physical Unit")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    BYTE    00h  type: hard
        01h  type: soft
--------N-6801--SF2B00-----------------------
INT 68 - APPC/PC - NETWORK DEVICE CONTROL - ACTIVATE DLC
    AH = 01h subfn 2B00h
    DS:DX -> control block (see #1922)
Return: control block updated
SeeAlso: AH=01h/SF=1B00h,AH=01h/SF=2000h

Format of APPC/PC "Activate DLC" control block:
Offset    Size    Description    (Table 1922)
 00h 12 BYTEs    reserved
 0Ch    WORD    2B00h (verb "Activate DLC")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h  8 BYTEs    (big-endian) DLC name
 20h    BYTE    adapter number
--------N-6802--SF0100-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - ALLOCATE
    AH = 02h subfn 0100h
    DS:DX -> control block (see #1923)
Return: control block updated
SeeAlso: AH=02h/SF=0500h

Format of APPC/PC "Allocate" control block:
Offset    Size    Description    (Table 1923)
 00h 12 BYTEs    reserved
 0Ch    WORD    0100h (verb "Allocate" or "MC_Allocate")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    (MC_Allocate only) conversation type
        0 basic conversation
        1 mapped conversation
 27h    BYTE    SYNC_LEVEL (00h none, 01h confirm)
 28h    WORD    0000h
 2Ah    BYTE    RETURN_CONTROL
        00h when session allocated
        01h immediate
        02h when session free
 2Bh  8 BYTEs    00h
 33h  8 BYTEs    (big-endian) partner logical unit name
 3Bh  8 BYTEs    (big-endian) mode name
 43h 65 BYTEs    (counted string) TP name
 84h    BYTE    security (00h none, 01h same, 02h pgm)
 85h 11 BYTEs    00h
 90h 11 BYTEs    (counted string) password
 9Bh 11 BYTEs    (counted string) user ID
 A6h    WORD    PIP_DATA length
 A8h    DWORD    pointer to PIP_DATA

(Table 1924)
Values for APPC/PC primary return code:
 0000h    successful
 0001h    parameter check
 0002h    state check
 0003h    allocation error
 0005h    deallocate abended
 0006h    deallocate abended program
 0007h    deallocate abended SVC
 0008h    deallocate abended timer
 0009h    deallocate normal return
 000Ah    data posting blocked
 000Bh    posting not active
 000Ch    PROG_ERROR_NO_TRUNC
 000Dh    PROG_ERROR_TRUNC
 000Eh    PROG_ERROR_PURGING
 000Fh    CONV_FAILURE_RETRY
 0010h    CONV_FAILURE_NO_RETRY
 0011h    SVC_ERROR_NO_TRUNC
 0012h    SVC_ERROR_TRUNC
 0013h    SVC_ERROR_PURGING
 0014h    unsuccessful
 0018h    CNOS partner logical unit reject
 0019h    conversation type mixed
 F001h    APPC disabled
 F002h    APPC busy
 F003h    APPC abended
 F004h    incomplete

(Table 1925)
Values for APPC/PC error code:
 0001h    bad TP ID
 0002h    bad conversation ID
 0004h    allocation error, no retry
 0005h    allocation error, retry
 0006h    data area crosses segment boundary
 0010h    bad TPN length
 0011h    bad CONV length
 0012h    bad SYNC level
 0013h    bad security selection
 0014h    bad return control
 0015h    SEC_TOKENS too big
 0016h    PIP_LEN incorrect
 0017h    no use of SNASVCMG
 0018h    unknown partner mode
 0031h    confirm: SYNC_NONE
 0032h    confirm: bad state
 0033h    confirm: NOT_LL_BDY
 0041h    confirmed: bad state
 0051h    deallocate: bad type
 0052h    deallocate: flush bad state
 0053h    deallocate: confirm bad state
 0055h    deallocate: NOT_LL_BDY
 0057h    deallocate: log LL_WRONG
 0061h    flush: not send state
 0091h    post on receipt: invalid length
 0092h    post on receipt: not in receive state
 0093h    post on receipt: bad fill
 00A1h    prepare to receive:invalid type
 00A2h    prepare to receive: unfinished LL
 00A3h    prepare to receive: not in send state
 00B1h    receive and wait: bad state
 00B2h    receive and wait: NOT_LL_BDY
 00B5h    receive and wait: bad fill
 00C1h    receive immediate: not in receive state
 00C4h    receive immediate: bad fill
 00E1h    request to send: not in receive state
 00F1h    send data: bad LL
 00F2h    send data: not in send state
 0102h    send error: log LL wrong
 0103h    send error: bad type
 0121h    test: invalid type
 0122h    test: not in receive state
--------N-6802--SF0300-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - CONFIRM
    AH = 02h subfn 0300h
    DS:DX -> control block (see #1926)
Return: control block updated
SeeAlso: AH=02h/SF=0400h

Format of APPC/PC "Confirm" control block:
Offset    Size    Description    (Table 1926)
 00h 12 BYTEs    reserved
 0Ch    WORD    0300h (verb "Confirm" or "MC_Confirm")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    request to send received (0=no, 1=yes)
--------N-6802--SF0400-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - CONFIRMED
    AH = 02h subfn 0400h
    DS:DX -> control block (see #1927)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Confirmed" control block:
Offset    Size    Description    (Table 1927)
 00h 12 BYTEs    reserved
 0Ch    WORD    0400h (verb "Confirmed" or "MC_Confirmed")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
--------N-6802--SF0500-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - DEALLOCATE
    AH = 02h subfn 0500h
    DS:DX -> control block (see #1928)
Return: control block updated
SeeAlso: AH=02h/SF=0100h,AH=02h/SF=0300h

Format of APPC/PC "Deallocate" control block:
Offset    Size    Description    (Table 1928)
 00h 12 BYTEs    reserved
 0Ch    WORD    0500h (verb "Deallocate" or "MC_Deallocate")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    00h
 27h    BYTE    type
        00h SYNC_LEVEL
        01h FLUSH
        02h ABEND_PROC
        03h ABEND_SVC
        04h ABEND_TIMER
        05h ABEND
 28h    WORD    (MC_Deallocate only) length of error log data
 2Ah    DWORD    (MC_Deallocate only) pointer to error log data
--------N-6802--SF0600-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - FLUSH
    AH = 02h subfn 0600h
    DS:DX -> control block (see #1929)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Flush" control block:
Offset    Size    Description    (Table 1929)
 00h 12 BYTEs    reserved
 0Ch    WORD    0600h (verb "Flush" or "MC_Flush")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
--------N-6802--SF0700-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - GET ATTRIBUTES
    AH = 02h subfn 0700h
    DS:DX -> control block (see #1930)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Get_Attributes" control block:
Offset    Size    Description    (Table 1930)
 00h 12 BYTEs    reserved
 0Ch    WORD    0700h (verb "Get_Attributes" or "MC_Get_Attributes")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h  8 BYTEs    (big-endian) logical unit ID
 2Eh    BYTE    00h
 2Fh    BYTE    SYNC_LEVEL (0=none, 1=confirm)
 30h  8 BYTEs    (big-endian) mode name
 38h  8 BYTEs    (big-endian) own net name
 40h  8 BYTEs    (big-endian) own logical unit name
 48h  8 BYTEs    (big-endian) partner logical unit name
 50h 18 BYTEs    (counted string) partner's fully qualified logical unit name
 62h    BYTE    00h
 63h 11 BYTEs    (counted string) user ID
--------N-6802--SF0800-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - GET CONVERSATION TYPE
    AH = 02h subfn 0800h
    DS:DX -> control block (see #1931)
Return: control block updated
SeeAlso: AH=02h/SF=0300h

Format of APPC/PC "Get_Type" control block:
Offset    Size    Description    (Table 1931)
 00h 12 BYTEs    reserved
 0Ch    WORD    0800h (verb "Get_Type")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    (return) type (0=basic conversation, 1=mapped conversation)
--------N-6802--SF0900-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - POST ON RECEIPT
    AH = 02h subfn 0900h
    DS:DX -> control block (see #1932)
Return: control block updated
SeeAlso: AH=02h/SF=0A00h

Format of APPC/PC "Post_on_Receipt" control block:
Offset    Size    Description    (Table 1932)
 00h 12 BYTEs    reserved
 0Ch    WORD    0900h (verb "Post_on_Receipt")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    WORD    maximum length
 28h    BYTE    fill (0=buffer, 1=LL)
--------N-6802--SF0A00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - PREPARE TO RECEIVE
    AH = 02h subfn 0A00h
    DS:DX -> control block (see #1933)
Return: control block updated
SeeAlso: AH=02h/SF=0900h,AH=02h/SF=0B00h

Format of APPC/PC "Prepare_to_Receive" control block:
Offset    Size    Description    (Table 1933)
 00h 12 BYTEs    reserved
 0Ch    WORD    0A00h (verb "Prepare_to_Receive" or "MC_Prepare_to_Receive")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    type (0=SYNC_LEVEL, 1=FLUSH)
 27h    BYTE    locks (0=short, 1=long)
--------N-6802--SF0B00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - RECEIVE AND WAIT
    AH = 02h subfn 0B00h
    DS:DX -> control block (see #1934)
Return: control block updated
SeeAlso: AH=02h/SF=0C00h,AH=02h/SF=0F00h

Format of APPC/PC "Receive_and_Wait" control block:
Offset    Size    Description    (Table 1934)
 00h 12 BYTEs    reserved
 0Ch    WORD    0B00h (verb "Receive_and_Wait" or "MC_Receive_and_Wait")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    type of information received (see #1935)
 27h    BYTE    (MC_Receive_and_Wait only) fill (0=buffer, 1=LL)
 28h    BYTE    Request_to_Send_Received (0=no, 1=yes)
 29h    WORD    maximum length
 2Bh    WORD    data length
 2Dh    DWORD    pointer to data

(Table 1935)
Values for type of information received:
 00h    data
 01h    data complete
 02h    data incomplete
 03h    confirm
 04h    confirm send
 05h    confirm deallocate
 06h    send
--------N-6802--SF0C00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - RECEIVE IMMEDIATE
    AH = 02h subfn 0C00h
    DS:DX -> control block (see #1936)
Return: control block updated
SeeAlso: AH=02h/SF=0B00h,AH=02h/SF=0F00h

Format of APPC/PC "Receive_Immediate" control block:
Offset    Size    Description    (Table 1936)
 00h 12 BYTEs    reserved
 0Ch    WORD    0C00h (verb "Receive_Immediate" or "MC_Receive_Immediate")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    type of information received (see #1935)
 27h    BYTE    (MC_Receive_Immediate only) fill (0=buffer, 1=LL)
 28h    BYTE    Request_to_Send_Received (0=no, 1=yes)
 29h    WORD    maximum length
 2Bh    WORD    data length
 2Dh    DWORD    pointer to data
--------N-6802--SF0E00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - REQUEST TO SEND
    AH = 02h subfn 0E00h
    DS:DX -> control block (see #1937)
Return: control block updated
SeeAlso: AH=02h/SF=0F00h,AH=02h/SF=1000h

Format of APPC/PC "Request_to_Send" control block:
Offset    Size    Description    (Table 1937)
 00h 12 BYTEs    reserved
 0Ch    WORD    0E00h (verb "Request_to_Send" or "MC_Request_to_Send")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
--------N-6802--SF0F00-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - SEND DATA
    AH = 02h subfn 0F00h
    DS:DX -> control block (see #1938)
Return: control block updated
SeeAlso: AH=02h/SF=0E00h,AH=02h/SF=1000h

Format of APPC/PC "Send_Data" control block:
Offset    Size    Description    (Table 1938)
 00h 12 BYTEs    reserved
 0Ch    WORD    0F00h (verb "Send_Data" or "MC_Send_Data")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    request to send received (0=no, 1=yes)
 27h    BYTE    00h
 28h    WORD    data length
 2Ah    DWORD    pointer to data
--------N-6802--SF1000-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - SEND ERROR
    AH = 02h subfn 1000h
    DS:DX -> control block (see #1939)
Return: control block updated
SeeAlso: AH=02h/SF=0F00h

Format of APPC/PC "Send_Error" control block:
Offset    Size    Description    (Table 1939)
 00h 12 BYTEs    reserved
 0Ch    WORD    1000h (verb "Send_Error" or "MC_Send_Error")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    request to send received (0=no, 1=yes)
 27h    BYTE    type (0=program, 1=SVC)
 28h    DWORD    00h
 2Ch    WORD    (MC_Send_Error only) LOG_DATA length
 2Eh    DWORD    (MC_Send_Error only) pointer to LOG_DATA
--------N-6802--SF1200-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - TEST
    AH = 02h subfn 1200h
    DS:DX -> control block (see #1940)
Return: control block updated
SeeAlso: AH=02h/SF=1300h

Format of APPC/PC "Test" control block:
Offset    Size    Description    (Table 1940)
 00h 12 BYTEs    reserved
 0Ch    WORD    1200h (verb "Test" or "MC_Test")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    (MC_Test only) test (0=posted, 1=request_to_send received)
Note:    error code has different interpretations for:
    0 posted data
    1 posted not data (primary return code = 0)
    1 bad TP_ID (primary return code = 1)
--------N-6802--SF1300-----------------------
INT 68 - APPC/PC - CONNECTION CONTROL - WAIT
    AH = 02h subfn 1300h
    DS:DX -> control block (see #1941)
Return: control block updated
SeeAlso: AH=02h/SF=1200h

Format of APPC/PC "Wait" control block:
Offset    Size    Description    (Table 1941)
 00h 12 BYTEs    reserved
 0Ch    WORD    1300h (verb "Wait")
 0Eh    BYTE    1 if MC_ (mapped conversation) form of verb
        0 if basic verb
 0Fh  5 BYTEs    reserved (0)
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) error code (see #1925,#1940)
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    (big-endian) conversation ID
 26h    BYTE    number of conversations to wait on
        Note: error codes have interpretations as for AH=02h/SF=1200h
--------N-6803--SF2400-----------------------
INT 68 - APPC/PC - TP STARTED
    AH = 03h subfn 2400h
    DS:DX -> control block (see #1942)
Return: control block updated

Format of APPC/PC "TP Started" control block:
Offset    Size    Description    (Table 1942)
 00h 12 BYTEs    reserved
 0Ch    WORD    2400h (verb "TP Started")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah  8 BYTEs    (big-endian) logical unit ID
 22h  8 BYTEs    (big-endian) TP ID
--------N-6803--SF2800-----------------------
INT 68 - APPC/PC - GET ALLOCATE
    AH = 03h subfn 2800h
    DS:DX -> control block (see #1943)
Return: control block updated

Format of APPC/PC "Get ALLOCATE" control block:
Offset    Size    Description    (Table 1943)
 00h 12 BYTEs    reserved
 0Ch    WORD    2800h (verb "Get ALLOCATE")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah  8 BYTEs    (big-endian) logical unit ID
 22h    BYTE    type (00h dequeue, 01h test)
 23h    DWORD    pointer to CREATE_TP record
--------N-6803--SF2A00-----------------------
INT 68 - APPC/PC - CHANGE LOGICAL UNIT
    AH = 03h subfn 2A00h
    DS:DX -> control block (see #1944)
Return: control block updated

Format of APPC/PC "Change Logical Unit" control block:
Offset    Size    Description    (Table 1944)
 00h 12 BYTEs    reserved
 0Ch    WORD    2A00h (verb "Change Logical Unit")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah  8 BYTEs    (big-endian) logical unit ID
 22h    DWORD    pointer to CREATE_TP_EXIT routine
        00000000h queue ALLOCATEs
        FFFFFFFFh reject incoming ALLOCATEs
 26h    DWORD    00000000h
 2Ah    DWORD    pointer to SYSTEM_LOG_EXIT routine, FFFFFFFFh= don't log errors
 2Eh    DWORD    00000000h
 32h    BYTE    maximum TPs
 33h    BYTE    00h stop QUEUE_ALLOCATEs
        01h resume QUEUE_ALLOCATEs
 34h    DWORD    pointer to LU_LU_PASSWORD_EXIT routine, FFFFFFFFh = no exit
 38h    DWORD    00000000h
--------N-6804-------------------------------
INT 68 - APPC/PC - TRANSACTION PROCESSING
    AH = 04h
    DS:DX -> control block (see #1945)
Return: control block updated

Format of APPC/PC control block:
Offset    Size    Description    (Table 1945)
 00h 12 BYTEs    reserved
 0Ch    WORD    verb (action)
        2500h TP_ENDED
        2900h TP_VALID
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h    WORD    00h
 1Ah  8 BYTEs    (big-endian) TP_ID
 22h    DWORD    -> CREATE_TP record (only if verb = 2900h)
--------N-6805-------------------------------
INT 68 - APPC/PC - TRANSFER MESSAGE DATA
    AH = 05h
    DS:DX -> control block (see #1946)
Return: control block updated

Format of APPC/PC "Transfer Message Data" control block:
Offset    Size    Description    (Table 1946)
 00h 12 BYTEs    reserved
 0Ch    WORD    1C00h (verb "Transfer Message Data")
 0Eh    BYTE    data type
        00h user defined
        01h NMVT
        02h alert subvectors
        03h PDSTATS subvectors
 0Fh  5 BYTEs    00h
 14h    DWORD    (big-endian) return code (see #1911)
 18h 12 BYTEs    00h
 24h    BYTE    flags
        bit 0: don't add correlation subvector
        bit 1: don't add product set ID subvector
        bit 2: don't do SYSLOG
        bit 3: don't send SSCP_PU_SESSION
 25h    BYTE    00h
 26h    WORD    length of data
 28h  N BYTEs    data
--------N-6806-------------------------------
INT 68 - APPC/PC - CHANGE NUMBER OF SESSIONS
    AH = 06h
    DS:DX -> control block (see #1947)
Return: control block updated

Format of APPC/PC "Change Number of Sessions" control block:
Offset    Size    Description    (Table 1947)
 00h 12 BYTEs    reserved
 0Ch    WORD    1500h (verb "Change Number of Sessions")
 0Eh  6 BYTEs    00h
 14h    WORD    (big-endian) primary return code (see #1924)
 16h    DWORD    (big-endian) secondary return code (see #1911,#1948)
 1Ah  8 BYTEs    (big-endian) logical unit ID
 22h  8 BYTEs    blanks
 2Ah  8 BYTEs    (big-endian) partner logical unit name
 32h  8 BYTEs    (big-endian) mode name
 3Ah    BYTE    bit 7: use MODE_NAME_SELECT_ALL rather than MODE_NAME
        bit 6: set negotiable values
 3Bh    BYTE    partner logical unit mode session limit
 3Ch    BYTE    minimum CONWINNERS_SOURCE
 3Dh    BYTE    maximum CONWINNERS_TARGET
 3Eh    BYTE    automatic activation
 3Fh    BYTE    00h
 40h    BYTE    flags
        bit 7: drain target
        bit 6: drain source
        bit 5: target responsible, not source

(Table 1948)
Values for secondary return code (see also AH=01h/SF=1B00h):
 0000h    accepted
 0001h    negotiated
 0003h    bad logical unit ID
 0004h    allocation failure, no retry
 0005h    allocation failure, retry
 0151h    can't raise limits
 0153h    all modes must reset
 0154h    bad SNASVCMG limits
 0155h    minimum greater than total
 0156h    mode closed (primary return code = 1)
    CNOS mode closed (primary return code = 18h)
 0157h    bad mode name (primary return code = 1)
    CNOS bad mode name (primary return code = 18h)
 0159h    reset SNA drains
 015Ah    single not SRC response
 015Bh    bad partner logical unit
 015Ch    exceeds maximum allowed
 015Dh    change SRC drains
 015Eh    logical unit detached
 015Fh    CNOS command race reject
--------N-6807-------------------------------
INT 68 - APPC/PC - PASSTHROUGH
    AH = 07h
    DS:DX -> control block (format depends on application subsystem)
Return: control block updated
SeeAlso: AH=FFh
----------684300-----------------------------
INT 68 U - ??? - INSTALLATION CHECK???
    AX = 4300h
Return: AX = F386h if ???
    ???
Note:    called by Novell DOS 7.0 EMM386.EXE
SeeAlso: AX=4400h,INT 41/AX=004Fh
----------684300-----------------------------
INT 68 U - ???
    AX = 4400h
    BX = ???
    CX = ???
    DX = ???
    DS:SI = real-mode address of protected-mode GDT
    ES:DI = real-mode address of protected-mode IDT
Return: ???
Note:    called by Novell DOS 7.0 EMM386.EXE if AX=4300h returns AX=F386h
SeeAlso: AX=4300h
----------6847-------------------------------
INT 68 - MS Windows debugging kernel - OUTPUT STRING
    AH = 47h
    ES:SI -> string
Notes:    output a string (to inform a debugger of some events)
    KERNEL outputs "Windows Kernel Entry\r\n" on startup
SeeAlso: INT 41/AX=0012h
--------N-68FA-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE APPC
    AH = FAh
    AL bit 0 = new state (0 enable, 1 disable)
SeeAlso: AH=FDh,INT 68"Novell"
--------N-68FB-------------------------------
INT 68 - APPC/PC - CONVERT
    AH = FBh
    DS:DX -> control block (see #1949)
Return: control block updated

Format of APPC/PC "CONVERT" control block:
Offset    Size    Description    (Table 1949)
 00h 12 BYTEs    reserved
 0Ch    WORD    1A00h (verb "CONVERT")
 0Eh  6 BYTEs    00h
 14h    DWORD    (big-endian) return code
 18h    BYTE    conversion
        00h ASCII to EBCDIC
        01h EBCDIC to ASCII
 19h    BYTE    character set
        00h AE
        01h A
        02h G
 1Ah    WORD    length of string to convert
 1Ch    DWORD    pointer to source
 20h    DWORD    pointer to target
--------N-68FC-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE MESSAGE TRACING
    AH = FCh
    AL = new state
        00h disable tracing
        01h enable tracing
        DX = number of bytes to keep (0=all)
SeeAlso: AH=FDh,AH=FEh
--------N-68FD-------------------------------
INT 68 - APPC/PC - ENABLE/DISABLE API VERB TRACING
    AH = FDh
    AL = new tracing state (00h disabled, 01h enabled)
SeeAlso: AH=FAh,AH=FCh,AH=FEh
--------N-68FE-------------------------------
INT 68 - APPC/PC - SET TRACE DESTINATION
    AH = FEh
    AL = trace destinations (see #1950)
    DS:DX -> trace stats record if AL bit 0 set (see #1951)
SeeAlso: AH=FCh,AH=FDh

Bitfields for trace destinations:
Bit(s)    Description    (Table 1950)
 0    storage (DS:DX -> trace stats record)
 1    display
 2    file (trace written to file OUTPUT.PC)
 3    printer

Format of APPC/PC Trace Statistics Record:
Offset    Size    Description    (Table 1951)
 00h    DWORD    pointer to storage trace buffer
 04h    WORD    max number of 80-byte records in trace
 06h    WORD    (high-order byte first!) current record number (must init to 0)
 08h    DWORD    (high-order byte first!) number of records written (init to 0)
 0Ch    DWORD    reserved
Note:    do not move record while trace is active
--------N-68FF-------------------------------
INT 68 - APPC/PC - SET PASSTHROUGH
    AH = FFh
    DS:DX -> passthrough exit routine
SeeAlso: AH=07h,INT 68"Novell"
--------b-69---------------------------------
INT 69 - Zenith AT BIOS - ???
Note:    called by INT 09 handler
--------N-690100-----------------------------
INT 69 - DECnet DOS CTERM - INSTALLATION CHECK
    AX = 0100h
Return: AL = FFh if present
SeeAlso: AX=010Fh
--------N-690101-----------------------------
INT 69 - DECnet DOS CTERM - SEND BYTE
    AX = 0101h
    BL = character
    DX = session handle
Return: AH >= 80h on error
SeeAlso: AX=0102h
--------N-690102-----------------------------
INT 69 - DECnet DOS CTERM - READ BYTE
    AX = 0102h
    DX = session handle
Return: AH >= 80h on error
    AH < 80h if successful
        AL = character
SeeAlso: AX=0101h
--------N-690103-----------------------------
INT 69 - DECnet DOS CTERM - STATUS
    AX = 0103h
    DX = session handle
Return: AH status flags (see #1952)
    AL = reason code if DECnet error (see #1953)
SeeAlso: AX=0104h

Bitfields for DECnet DOS CTERM status flags:
Bit(s)    Description    (Table 1952)
 7    session has been aborted
 6    DECnet error
 1    trace data available
 0    receive data available

(Table 1953)
Values for reason code:
 00h    normal disconnect
 01h    unknown message from host
 02h    protocol violation from host
 03h    could not process the initiate message
 04h    error receiving message from host
 05h    error sending message to host
 06h    error checking for message from host
 07h    remote system does not support CTERM
 08h    remote system does not support correct protocol version
 09h    did not receive BIND message from host
 0Ah    could not send BIND message to host
 0Bh    no more sessions available
 0Ch    session does not exist
 0Dh    not enough memory to complete operation
 0Eh    connection has broken
Index:    error codes;DECnet DOS CTERM|DECnet DOS CTERM;error codes
--------N-690104-----------------------------
INT 69 - DECnet DOS CTERM - DECnet STATUS
    AX = 0104h
    DX = session handle
Return: AX = reason code (see #1953)
Note:    use this call when AX=0103h returns a DECnet error
SeeAlso: AX=0103h
--------N-690105-----------------------------
INT 69 - DECnet DOS CTERM - OPEN SESSION
    AX = 0105h
    DS:BX -> ASCIZ node name
    ES:DX -> buffer for session control block (see INT 6A/AH=D0h)
Return: AX <= 0 on error
    AX > 0 session handle
SeeAlso: AX=0103h,AX=0106h,AX=010Ah
--------N-690106-----------------------------
INT 69 - DECnet DOS CTERM - CLOSE SESSION
    AX = 0106h
    DX = session handle
Return: AH = status
        00h good close
        other error code (see #1953)
SeeAlso: AX=0103h,AX=0105h
--------N-69010A-----------------------------
INT 69 - DECnet DOS CTERM - GET SESSION CONTROL BLOCK SIZE
    AX = 010Ah
Return: AX = length of session control block in bytes
SeeAlso: AX=0105h
--------N-69010B-----------------------------
INT 69 - DECnet DOS CTERM - GET DECnet SOCKET
    AX = 010Bh
    DX = session handle
Return: AX > 0    DECnet socket for the session
    AX = 0    no match for handle
--------N-69010F-----------------------------
INT 69 - DECnet DOS CTERM - DEINSTALL CTERM
    AX = 010Fh
Return: AH = status
        00h successful uninstall
        other error code (see #1953)
Note:    CTERM must have been the last TSR loaded in order to deinstall it
SeeAlso: AX=0100h
Index:    uninstall;DECnet DOS CTERM
--------N-690A-------------------------------
INT 69 - DECnet DOS 2.1+ - DATA LINK LAYER
    AH = 0Ah
    AL = function number (see #1954)
    ES:BX -> Datalink Communication Block
Return: AX = status (see #1955)
SeeAlso: INT 6D"DECnet"

(Table 1954)
Values for DECnet DOS Data Link Layer function:
 00h    initialize
 01h    open portal
 02h    close portal
 03h    enable multicast address
 04h    disable multicast address
 05h    transmit
 06h    request transmit buffer
 07h    deallocate transmit buffer
 08h    read channel status
 09h    read datalink portal list
 0Ah    read information about a datalink portal
 0Bh    read and/or clear counters
 0Ch    request to boot from a network server
 0Dh    enable Ethernet channel
 0Eh    disable Ethernet channel
 0Fh    start MOP/send a System ID message
 10h    stop MOP
 11h    get DECPARM
 12h    set DECPARM
 13h    external loopback

(Table 1955)
Values for DECnet DOS Data Link Layer status:
 00h    successful
 01h    hardware failed to initialize
 02h    channel state was not off (must be off to execute that command)
 03h    channel state is off (must be on to execute that command)
 04h    address not set
 05h    hardware missing
 06h    buffer too small
 07h    no more buffers available
 08h    no more resources available
 09h    promiscuous receiver active
 0Ah    non exclusive
 0Bh    unrecognized portal
 0Ch    protocol type in use
 0Dh    not a valid Multicast address
 0Eh    outstanding calls
 0Fh    hardware doesn't support receiving bad frames
 10h    none outstanding
 11h    no events
 12h    broken
 13h    buffer quota exceeded
 14h    already initialized
 15h    loopback failure
Index:    error codes;DECnet DOS|DECnet DOS;error codes

Format of Datalink Communication Block:
Offset    Size    Description    (Table 1956)
 00h    WORD    portal ID
 02h  6 BYTEs    source address
 08h  6 BYTEs    destination address
 0Eh    DWORD    buffer pointer
 12h    WORD    buffer length
 14h    WORD    operation
 16h    BYTE    pad flag (used on open)
        00h no pad
        01h pad
 17h    BYTE    mode flag (used on open)
        00h 802.3
        01h Ethernet
        02h promiscuous
 18h    DWORD    line status change function
 1Ch    DWORD    received data function
 20h    DWORD    transmitted data function
 24h    BYTE    maximum outstanding transmits/receives
 25h  2 BYTEs    protocol type
 27h    WORD    buffers lost
--------N-694001-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4001h
Return: CF clear
    AX = 0000h
    ES:SI -> ???
Range:    INT 60 to INT 7F, selected by configuration
Note:    the signature "SYSV" immediately before the interrupt handler serves
      as the installation check
SeeAlso: AX=4002h
Index:    installation check;10NET SYSSVC
--------N-694002-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4002h
    ???
Return: ???
Range:    INT 60 to INT 7F, selected by configuration
Note:    the signature "SYSV" immediately before the interrupt handler serves
      as the installation check
--------N-694101-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4101h
Return: CF clear
    ES:SI -> ???
Range:    INT 60 to INT 7F, selected by configuration
SeeAlso: AX=4102h,AX=4103h,AX=4104h
--------N-694102-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4102h
    ???
Return: ???
--------N-694103-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4103h
    ???
Return: ???
--------N-694104-----------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AX = 4104h
    ???
Return: ???
--------N-6942-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AH = 42h
    AL = function (01h-14h)
    ???
Return: ???
Range:    INT 60 to INT 7F, selected by configuration
--------N-6943-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AH = 43h
    AL = function (01h-05h)
    ???
Return: ???
--------N-6944-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - ???
    AH = 44h
    AL = function (01h-03h)
    ???
Return: ???
Range:    INT 60 to INT 7F, selected by configuration
--------N-6949-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - BUG
    AH = 49h
Note:    due to a fencepost error, this function branches to hyperspace
SeeAlso: AX=4001h,AH=FFh
--------G-696996-----------------------------
INT 69 - ISR.COM v1.00 - SPECIFY INTERRUPT HANDLER
    AX = 6996h
    DS:DX -> interrupt handler or 0000h:0000h to disable
Return: AX = 9669h
Program: ISR (Interrupt Service Reflector) is a TSR by Rich Bono which permits
      a program to provide hardware interrupt handlers even while being
      debugged with a debugger that swaps interrupt vectors during
      debugging.
Note:    the interrupt vector which is to be reflected is set at installation
      time and cannot be changed
--------N-69FF-------------------------------
INT 69 - 10NET v5.0 - SYSSVC.COM - SIGNAL SYSTEM ERROR
    AH = FFh
Return: never???
Desc:    displays "System Error" message and register dump, then halts system
Range:    INT 60 to INT 7F, selected by configuration
Notes:    the signature "SYSV" immediately before the interrupt handler serves
      as the installation check
SeeAlso: AX=4001h,AH=49h
--------U-6A---------------------------------
INT 6A - OPTHELP.COM
Program: OPTHELP is an optionally-resident help system for SLR Systems's OPTASM
      assembler
Range:    INT 60h to INT 7Fh, selected by configuration
--------N-6A---------------------------------
INT 6A - DECnet DOS - LOCAL AREA TRANSPORT PROGRAM
Note:    the installation check consists of testing for a signature area
      immediately preceding the interrupt handler
SeeAlso: AH=01h/DH=FFh,INT 6B"DECnet",INT 6D"DECnet"
Index:    installation check;DECnet DOS Local Area Transport

Format of DECnet DOS signature area:
Offset    Size    Description    (Table 1957)
 -5    BYTE    major version number
 -4    BYTE    minor version number
 -3   3 BYTEs    signature (ASCII "LAT")
--------N-6A0000-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - INSTALLATION CHECK
    AX = 0000h
Return: AX = 4357h ('CW')
Program: Super-TCP is a TCP/IP protocol stack by Frontier Technologies Corp.
Note:    an alternate installation check is to test for the ASCIZ signature
      "FTC Super-TCP" three bytes past the interrupt handler
SeeAlso: AX=0001h,AX=0002h,AX=000Fh,AX=0010h,INT 21/AH=3Fh"BW-TCP"
SeeAlso: INT 61"PCTCP",INT 62/AH=00h"ETHDEV"
--------N-6A0001-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ???
    AX = 0001h
    BH = function number
        01h ???
        DS:SI -> ??? 24-byte record1 (see #1959)
        ES:DI -> buffer containing ???
        02h ???
        DS:SI -> ??? 18-byte record2 (see #1960)
        ES:DI -> buffer containing ???
        04h ???
        BL = subfunction
            01h
            DS:SI -> ??? 28-byte record3 (see #1961)
            ES:DI -> buffer containing ???
            02h
            DS:SI -> ??? 28-byte record3 (see #1961)
            ES:DI -> buffer containing ???
            03h
            DS:SI -> ??? 28-byte record3 (see #1961)
            else Return: AX = 0005h
        05h ???
        DS:SI -> ??? 20-byte record4 (see #1962)
        ES:DI -> buffer containing ???
        06h ???
        BL = subfunction
            01h
            DS:SI -> ??? 40-byte record5 (see #1963)
            02h
            DS:SI -> ??? 20-byte record6 (see #1964)
            ES:DI -> ???
            03h
            DS:SI -> ??? 20-byte record6 (see #1964)
            04h
            DS:SI -> ??? 46-byte record7 (see #1965)
            else Return: AX = 0005h
        11h ???
        DS:SI -> ??? 28-byte record8 (see #1966)
        ES:DI -> ???
Return: AX = function status (see #1958)
SeeAlso: AX=0000h

(Table 1958)
Values for Super-TCP function status:
 0000h    successful
 0005h    unsupported function
 000Ah    out of memory

Format of record1:
Offset    Size    Description    (Table 1959)
 00h  4 BYTEs    ???
 04h    WORD    size of ES:DI buffer
 06h 18 BYTEs    ???

Format of record2:
Offset    Size    Description    (Table 1960)
 00h  4 BYTEs    ???
 04h    WORD    size of ES:DI buffer
 06h 12 BYTEs    ???

Format of record3:
Offset    Size    Description    (Table 1961)
 00h  2 BYTEs    ???
 02h    WORD    ???
 04h    WORD    size of ES:DI buffer
 06h    WORD    ???
 08h    WORD    operation number (for function 0401h)
 0Ah    DWORD    -> ???
 0Eh    WORD    (return) ???
 10h 12 BYTEs    ???

Format of record4:
Offset    Size    Description    (Table 1962)
 00h  4 BYTEs    ???
 04h    WORD    size of ES:DI buffer
 06h 14 BYTEs    ???

Format of record5:
Offset    Size    Description    (Table 1963)
 00h    BYTE    operation??? (00h-07h)
 01h    BYTE    ???
 02h    WORD    (return) ???
 04h    DWORD    -> ???
 08h  4 BYTEs    ???
 0Ch    DWORD    -> ??? or 0000h:0000h
 10h 16 BYTEs    ???
 20h    DWORD    ???
 24h  4 BYTEs    ???

Format of record6:
Offset    Size    Description    (Table 1964)
 00h  4 BYTEs    ???
 04h    WORD    size of ES:DI buffer
 06h 14 BYTEs    ???

Format of record7:
Offset    Size    Description    (Table 1965)
 00h    WORD    ???
 02h    WORD    ???
 04h    WORD    ???
 06h 40 BYTEs    ???

Format of record8:
Offset    Size    Description    (Table 1966)
 00h  4 BYTEs    ???
 04h    WORD    size of ES:DI buffer
 06h  6 BYTEs    ???
 0Ch    WORD    (return) ???
 0Eh    WORD    operation??? (01h-03h)
 10h 12 BYTEs    ???
--------N-6A0002-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ???
    AX = 0002h
    BX = ??? (zero/nonzero)
    CX = ??? identifier (see AX=0004h)
    DS:SI -> 40-byte buffer for ??? or 0000h:0000h
    ES:DI -> buffer for ??? or 0000h:0000h
Return: AX = 0000h (successful) ???
    BL = ???
    BH = ???
    CX = ???
    DX = ???
--------N-6A0003-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - GET ??? DATA AREA
    AX = 0003h
Return: CX:DX -> data area (see #1967)

Format of Super-TCP data area:
Offset    Size    Description    (Table 1967)
 00h  2 BYTEs    ???
 02h    DWORD    original INT 6A vector
 06h  2 BYTEs    ???
 08h 96 BYTEs    array of 16 6-byte ???
 68h    WORD    number of elements of above array in use
 6Ah    WORD    ???
    ???
--------N-6A0004-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - ALLOCATE ???
    AX = 0004h
    CX = size in ???
Return: AX = 0000h (successful)
    CX = DX = ???
SeeAlso: AX=0005h,AX=000Fh
--------N-6A0005-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - FREE/CLOSE ???
    AX = 0005h
    CX = ??? identifier (from AX=0004h)
Return: AX = status (0000h successful, FFFFh failed)
SeeAlso: AX=0004h,AX=000Fh
--------N-6A000F-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - FREE/CLOSE ALL ???
    AX = 000Fh
Return: AX = 0000h (successful)
SeeAlso: AX=0000h,AX=0004h,AX=0005h
--------N-6A0010-----------------------------
INT 6A U - Super-TCP DOS TSR Kernel v3.57 - UNINSTALL
    AX = 0010h
Return: AX = status
        0000h successful
        0002h can't uninstall, interrupt vector hooked by another program
Program: Super-TCP is a TCP/IP protocol stack by Frontier Technologies Corp.
Note:    if AX is not one of the values listed here on entry, Super-TCP
      returns AX=FFFEh
SeeAlso: AX=0000h
--------N-6A01--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BYTE
    AH = 01h
    DH = FFh
    AL = character
    DL = handle
Return: AH >= 80h on error
SeeAlso: AH=02h
--------N-6A02--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - READ BYTE
    AH = 02h
    DH = FFh
    DL = handle
Return: AH < 80h if successful
        AL = character
    AH >= 80h on error
SeeAlso: AH=01h
--------N-6A03--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - STATUS
    AH = 03h
    DH = FFh
    DL = handle
Return: AH = status flags (see #1968)

Bitfields for DECnet DOS LAT status flags:
Bit(s)    Description    (Table 1968)
 5    transmit buffer empty
 3    session in start state
 2    session not active
 1    unable to queue transmit data
 0    receive data available
--------N-6AD0--DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - OPEN SESSION
    AH = D0h
    DH = FFh
    AL = password flag
        FFh no password
        0Fh password at ES:DI
    ES:BX -> LAT session control block (see #1969)
    ES:DI -> 16-byte blank-padded password (optional)
Return: AH = 00h success
        DL = handle
SeeAlso: AX=D000h

Format of LAT Session Control Block:
Offset    Size    Description    (Table 1969)
 00h 18 BYTEs    service name
 12h 18 BYTEs    node name (future use)
 24h 18 BYTEs    port name (future use)
 36h    DWORD    -> session stopped post routine
 3Ah    DWORD    -> service table overflow post routine
 3Eh    DWORD    -> transmit post routine
 42h    DWORD    -> receive post routine
 46h    WORD    session status
        04h circuit failure
        08h stop slot received
---LAT v???---
 48h    WORD    slot state (LAT driver use)
 4Ah    WORD    local credits (LAT driver use)
 4Ch    DWORD    -> VCB (LAT driver use)
 50h    WORD    backward slot (LAT driver use)
 52h    WORD    forward slot (LAT driver use)
 54h    WORD    remote slot ID (LAT driver use)
 56h    WORD    local slot ID (LAT driver use)
 58h    WORD    slot byte count (LAT driver use)
 5Ah    BYTE    remote credits (LAT driver use)
 5Bh 255 BYTEs    transmitted data slot
15Ah    BYTE    number of receive data slots (4 recommended)
15Bh    BYTE    number of occupied slots
15Ch    BYTE    index of next receive slot to use
15Dh    BYTE    index of current receive slot
15Eh    WORD    pointer to first received character
160h  N WORDs    pointers to receive slots (buffers); each is 259 bytes
     259N BYTEs    buffers
Note:    set post routines to 0000h:0000h if polled operation will be used
---LAT v4.1.17---
 48h    WORD    session state (LAT driver use)
 4Ah    BYTE    local credits (LAT driver use)
 4Bh    DWORD    -> VCB (LAT driver use)
 4Fh    WORD    backward slot (LAT driver use)
 51h    WORD    forward slot (LAT driver use)
 53h    BYTE    remote slot ID (LAT driver use)
 54h    BYTE    local slot ID (LAT driver use)
 55h    BYTE    slot byte count (LAT driver use)
 56h    BYTE    remote credits (LAT driver use)
 57h 255 BYTEs    transmitted data slot
156h    BYTE    number of receive data slots (4 recommended)
157h    BYTE    number of occupied slots
158h    BYTE    index of next receive slot to use
159h    BYTE    index of current receive slot
15Ah    WORD    pointer to first received character
15Ch  N WORDs    pointers to receive slots (buffers); each is 259 bytes
     259N BYTEs    buffers
Note:    set post routines to 0000h:0000h if polled operation will be used
--------N-6AD000DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - CLOSE SESSION
    AX = D000h
    DH = FFh
    DL = handle
Return: AX = status (see #1970)
SeeAlso: AH=D0h

(Table 1970)
Values for DECnet DOS LAT function status:
 0000h    successful
 0001h    no such session
 0002h    session not running, try again later
--------N-6AD100DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - SEND BREAK
    AX = D100h
    DH = FFh
    DL = handle
Return: AX = 0000h if successful
    AH bit 7 set if unable to send break
--------N-6AD300DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - RESET LAT COUNTERS
    AX = D300h
    DH = FFh
SeeAlso: AX=D400h
--------N-6AD400DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - COPY LAT COUNTERS
    AX = D400h
    DH = FFh
    CX = buffer size
    ES:BX -> buffer for LAT counters
Return: AX = status
        0000h counters copied into buffer
        FFFFh buffer too small
SeeAlso: AX=D300h
--------N-6AD500DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - GET NEXT LAT SERVICE NAME
    AX = D500h
    DH = FFh
    ES:BX -> 17-byte buffer for name
Return: AH = 00h if successful
       ES:BX buffer filled
    AX = FFFFh if end of table or no name available
Notes:    use this function to get the names of the hosts on the network
    successive calls are necessary to get all names
SeeAlso: AX=D600h
--------N-6AD600DHFF-------------------------
INT 6A - DECnet DOS LOCAL AREA TRANSPORT - LAT SERVICE TABLE RESET
    AX = D600h
    DH = FFh
Return: AX = number of service table entries
    BX = status
        0000h service table has not overflowed
        FFFFh service table has overflowed
SeeAlso: AX=D500h
--------!---Section--------------------------