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m7oa-1.asm
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Assembly Source File
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1994-07-13
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13KB
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443 lines
; M7OA-1.ASM -- Otrona Attache overlay file for MDM7xx - 11/11/83
;
; You will want to look this file over carefully. There are a number of
; options that you can use to configure the program to suit your taste.
; This file adapts the Otrona Attache computer to MDM7xx.
;
; Much of the information contained here is not in the MDM7xx.ASM file.
;
; Edit this file for your preferences then follow the "TO USE:" example
; shown below.
;
; Use the SET command to change baud rate if needed. This updates the
; CMOS RAM value. When the program is first called used, the baud rate
; is the same as currently set by the Valet function.
;
; TO USE: First edit this file filling in answers for your own
; equipment. Then assemble with ASM.COM or equivalent
; assembler. Then use DDT to overlay the the results
; of this program to the original .COM file:
;
; A>DDT MDM7xx.COM
; DDT VERS 2.2
; NEXT PC
; 4300 0100
; -IM7OA-1.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4300 0000
; -G0 (return to CP/M)
; A>SAVE 66 MDM7xx.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 11/11/83 - Renamed to M7OA-1.ASM, no changes - Irv Hoff
; 09/01/83 - Updated to work with MDM712 - Irv Hoff
; 08/27/83 - Added optional BIOS patch - Arley Dealey
; 06/30/83 - Revised to work with Otrona - Arley Dealey
; 06/22/83 - Revised to work with MDM710 - Irv Hoff
; 05/27/83 - Updated to work with MDM709 - Irv Hoff
; 05/15/83 - Revised to work with MDM708 - Irv Hoff
; 04/11/83 - Updated to work with MDM707 - Irv Hoff
; 04/04/83 - Updated to work with MDM706 - Irv Hoff
; 03/03/83 - Modified MDM705KP for XEROX
; 820-II computers with external
; modems - David Wurz
;
; = = = = = = = = = = = = = = = = = =
;
;
YES: EQU 0FFH
NO: EQU 0
;
;
BDOS EQU 005H
BELL: EQU 07H ;bell
CR: EQU 0DH ;carriage return
ESC: EQU 1BH ;escape
LF: EQU 0AH ;linefeed
WARMSTART: EQU 0000H
;
;
PORT: EQU 0F0H ;Otrona Attache modem port
MODCTL1: EQU PORT+1 ;Modem control port
MODDATP: EQU PORT ;Modem data port
MODCTL2: EQU PORT+1 ;Modem status port
MODRCVB: EQU 01H ;Your bit to test for receive
MODRCVR: EQU 01H ;Your value when receive ready
MODSNDB: EQU 04H ;Your bit to test for send
MODSNDR: EQU 04H ;Your value when send ready
;
;
ORG 100H
;
;
; Change the clock speed to suit your system
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
SMARTMODEM: DB NO ;yes=HAYES Smartmodem, no=non-PMMI 104H
TOUCHPULSE: DB 'T' ;T=touch, P=pulse (Smartmodem-only) 105H
CLOCK: DB 40 ;clock speed in MHz x10, 25.5 MHz max. 106H
;20=2 MHh, 37=3.68 MHz, 40=4 MHz, etc.
MSPEED: DB 1 ;0=110 1=300 2=450 3=600 4=710 5=1200 107H
;6=2400 7=4800 8=9600 9=19200 default
BYTDLY: DB 5 ;0=0 delay 1=10ms 5=50 ms - 9=90 ms 108H
;default time to send character in ter-
;minal mode file transfer for slow BBS.
CRDLY: DB 5 ;0=0 delay 1=100 ms 5=500 ms - 9=900 ms 109H
;default time for extra wait after CRLF
;in terminal mode file transfer
NOOFCOL: DB 5 ;number of DIR columns shown 10AH
SETUPTST: DB YES ;yes=user-added Setup routine 10BH
SCRNTEST: DB YES ;Cursor control routine 10CH
ACKNAK: DB YES ;yes=resend a record after any non-ACK 10DH
;no=resend a record after a valid NAK
BAKUPBYTE: DB NO ;yes=change any file same name to .BAK 10EH
CRCDFLT: DB YES ;yes=default to CRC checking 10FH
TOGGLECRC: DB YES ;yes=allow toggling of CRC to Checksum 110H
CONVBKSP: DB NO ;yes=convert backspace to rub 111H
TOGGLEBK: DB YES ;yes=allow toggling of bksp to rub 112H
ADDLF: DB NO ;no=no LF after CR to send file in 113H
;terminal mode (added by remote echo)
TOGGLELF: DB YES ;yes=allow toggling of LF after CR 114H
TRANLOGON: DB YES ;yes=allow transmission of LOGON 115H
;write logon sequence at location LOGON
SAVCCP: DB YES ;yes=do not overwrite CCP 116H
LOCONEXTCHR: DB NO ;yes=local command if EXTCHR precedes 117H
;no=external command if EXTCHR precedes
TOGGLELOC: DB YES ;yes=allow toggling of LOCONEXTCHR 118H
LSTTST: DB YES ;yes=allow toggling of printer on/off 119H
XOFFTST: DB NO ;yes=check for XOFF from remote while 11AH
;sending a file in terminal mode
XONWAIT: DB NO ;yes=wait for XON after CR while 11BH
;sending a file in terminal mode
TOGXOFF: DB YES ;yes=allow toggling of XOFF checking 11CH
IGNORCTL: DB YES ;yes=CTL-chars above ^M not displayed 11DH
EXTRA1: DB 0 ;for future expansion 11EH
EXTRA2: DB 0 ;for future expansion 11FH
BRKCHR: DB '\'-40H ;\ = Send a 300 ms. break tone 120H
NOCONNCT: DB 'N'-40H ;^N = Disconnect from the phone line 121H
LOGCHR: DB 'L'-40H ;^J = Send logon (LF) 122H
LSTCHR: DB 'P'-40H ;^L = Toggle printer 123H
UNSAVE: DB 'R'-40H ;^T = Close input text buffer (DC4) 124H
TRANCHR: DB 'T'-40H ;^F = Transmit file to remote 125H
SAVECHR: DB 'Y'-40H ;^R = Open input text buffer (DC2) 126H
EXTCHR: DB '^'-40H ;^^ = Send next character 127H
;
;
DS 2 ; 128H
IN$MODCTL1: MVI A,010H ; 12AH
OUT MODCTL1
IN MODCTL1 ;get the status bits
RET
DS 3
;
OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 134H
DS 7
IN$MODDATP: IN MODDATP ! RET ;in modem data port 13EH
DS 7
ANI$MODRCVB: ANI MODRCVB ! RET ;bit to test for receive ready 148H
CPI$MODRCVR: CPI MODRCVR ! RET ;value of receive bit when rdy 14BH
ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 14EH
CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 6 ; 154H
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port 15AH
OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem status port 15DH
;
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$GOODBYE: JMP GOODBYE ; 168H
JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH
RET ! NOP ! NOP ;by-passes PMMI routine 16EH
RET ! NOP ! NOP ;by-passes PMMI routine 171H
RET ! NOP ! NOP ;by-passes PMMI routine 174H
JMP$SETUPR: JMP SETUPR ; 177H
JMP$SPCLMENU: JMP SPCLMENU ; 17AH
JMP$SYSVER: JMP SYSVER ; 17DH
JMP$BREAK: JMP SENDBRK ; 180H
;
;
; Do not change the following six lines.
;
JMP$ILPRT: DS 3 ; 183H
JMP$INBUF DS 3 ; 186H
JMP$INLNCOMP: DS 3 ; 189H
JMP$INMODEM DS 3 ; 18CH
JMP$NXTSCRN: DS 3 ; 18FH
JMP$TIMER: DS 3 ; 192H
;
;
; Clear sequences -- CLREOS is clear to end of screen, CLRSCRN is clear
; entire screen. Last entry must be 0. Any other 0's act as NOP's.
;
CLREOS: CALL JMP$ILPRT ; 195H
DB ESC,'J',0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB ESC,'K',0,0,0 ; 1A1H
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Version for Otrona Attache, comm. port 0F0H'
DB CR,LF,0
RET
;.....
;
;
;-----------------------------------------------------------------------
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by 0400H if using the
; Hayes Smartmodem or by address 0C00H otherwise.
;
;-----------------------------------------------------------------------
;
; You can put in a message at this location which can be called up with
; CTL-O if TRANLOGON has been set TRUE. You can put in several lines if
; desired. End with a 0.
;
;
LOGON: DB 'This is an Otrona Attache computer',CR,LF
DB 0
;.....
;
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-shar computers.
;
SENDBRK: MVI A,5
OUT MODCTL1
MVI A,0F8H ;SEND A BREAK TONE
JMP GOODBYE1
;.....
;
;
; This routine sends a 300 ms. break tone and sets DTR low for the same
; length of time to disconnect some modems such as the Bell 212A, etc.
;
GOODBYE: MVI A,5
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,68H ;TURN OFF DRT, SEND BREAK
;
GOODBYE1: OUT MODCTL1
MVI B,3 ;WAIT FOR 300 MS.
CALL JMP$TIMER
MVI A,5
OUT MODCTL1
MVI A,0E8H ;RESTORE TO NORMAL, 8 BITS, DTR ON, ETC.
OUT MODCTL1
RET
;.....
;
;
; Otrona Attache initialization
;
; The following is an Otrona BIOS patch written by Allen Edwards. The
; LISTST routine in the standard BIOS has two errors which prevent it
; from it from working correctly. This patch does not support printer
; redirection via the IOBYTE.
;
INITMOD: LHLD 00000H+1 ;get BIOS warm boot vector
LXI D,02AH+1 ;offset to LISTST
DAD D ;add offset to vector
SHLD HACK1+1 ;*** MODIFY THE CODE ***
;
HACK1: LHLD 0D000H ;'HL' now has pointer to LISTST
XCHG ;move it to 'DE'
LXI B,NEWCODE ;point to new code with 'BC'
;
PTCHLP: LDAX B ;get next byte of new code
ORA A ;done?
JZ INITMOD1 ;yes, go finish init...
STAX D ;no, so put in the byte
INX B ;update the pointers
INX D
JMP PTCHLP ;and go do next byte
;
;
; New code for LISTST
;
NEWCODE: MVI A,010H
OUT 0F3H
IN 0F3H
ORI 0DBH ;turn on all bits except CTS & TxRE
CPI 0FFH ;check for both CTS & TxRE true
RZ ;if so, printer ready, return A=0FFH
XRA A ;else not ready so return with A=0
RET
;
DB 0 ;sentinel for end of patch
ENDIF
;
;
; Read current communications baud & set MDM7xx variable
;
INITMOD1: MVI C,9 ;BDOS string output request
LXI D,INITMSG0
CALL BDOS
;
BDRQST: MVI C,6 ;BDOS direct console i/o request
MVI E,0FFH ;direct console input request
CALL BDOS ;get communication port baud
ORA A ;anything in the buffer yet?
JZ BDRQST ;no, wait until there is...
ANI 00FH ;mask off high nybble
CPI 0 ;75 baud?
JZ BADBAUD ;yes, its bogus...
CPI 2 ;134.5 baud?
JZ BADBAUD ;yes, thats bogus too...
CPI 3 ;150 baud?
JZ BADBAUD ;and so is this one...
CPI 4 ;300 baud?
JNZ CHK600 ;no, skip ahead...
MVI A,1 ;special case, set it for 300 baud
JMP INITEXIT
;
CHK600: CPI 5 ;600 baud?
JNZ ADJUST ;no, skip ahead...
MVI A,3 ;special case, set it
JMP INITEXIT ;and get out...
;
ADJUST: DCR A ;adjust it to MDM712 value
;
INITEXIT: STA MSPEED ;save the baud value
RET
;.....
;
;
INITMSG0: DB 018H ;clear keyboard buffer
DB ESC,'?',8 ;read communications baud
DB '$'
;
BADBAUD: CALL JMP$ILPRT
DB CR,LF
DB ESC,'U"' ;set highlight attribute
DB '++ Invalid baud ++'
DB ESC,'U ' ;clear all attributes
DB CR,LF,LF,BELL
DB 0
;
;
; Setup routine to allow changing modem speed with the SET command.
;
SETUPR: LXI D,BAUDBUF ;point to new input buffer
CALL JMP$ILPRT
DB 'Input Baud Rate (300, 600, 1200, 9600, 19200): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;compare BAUDBUF+2 with characters below
DB '300',0
JNC OK300 ;go if got match
CALL JMP$INLNCOMP
DB '600',0
JNC OK600
CALL JMP$INLNCOMP
DB '1200',0
JNC OK1200
CALL JMP$INLNCOMP
DB '9600',0
JNC OK9600
CALL JMP$INLNCOMP
DB '19200',0
JNC OK19200
CALL JMP$ILPRT ;all matches failed, tell operator
DB '++ Incorrect entry ++',CR,LF,BELL,0
JMP SETUPR ;try again
;
OK300: MVI A,1
CALL PREAMBLE
LDA BD300
JMP SETBDEXIT
;
OK600: MVI A,3
CALL PREAMBLE
LDA BD600
JMP SETBDEXIT
;
OK1200: MVI A,5
CALL PREAMBLE
LDA BD1200
JMP SETBDEXIT
;
OK9600: MVI A,8
CALL PREAMBLE
LDA BD9600
JMP SETBDEXIT
;
OK19200: MVI A,9
CALL PREAMBLE
LDA BD19200
;
;
; Fall into SETBDEXIT
;
SETBDEXIT:MVI C,6 ;BDOS direct console i/o request
MOV E,A ;move char to 'E' reg. for output
CALL BDOS ;direct I/O to prevent tab expansion
CALL JMP$ILPRT ;set new baud from COMOS RAM parameter
DB ESC,'<'
DB 0
RET
;.....
;
;
PREAMBLE: STA MSPEED ;set the appropriate file transfer speed
MVI C,9 ;BDOS string output request
LXI D,SETBDMSG
PUSH B
CALL BDOS
POP B
RET
;.....
;
;
; Table of Otrona baud parameters
;
BD110: DB 001H
BD300: DB 004H
BD600: DB 005H
BD1200: DB 006H
BD9600: DB 009H
BD19200: DB 00AH
;.....
;
;
; Control message to set new baud
;
SETBDMSG: DB ESC,'@',8 ;write communications baud
DB '$'
;
;
; Control message to enable new baud
;
NEWBDMSG: DB ESC,'<' ;set communications baud from CMOS RAM
DB '$'
;
;
; Input buffer for baud specification
;
BAUDBUF: DB 10,0
DS 10
;
;-----------------------------------------------------------------------
;
; The following routine can be used as an auxiliary menu for notes of
; interest to a particular computer, etc. If using the Hayes Smartmodem
; this is unavailable without a special address change.
;
SPCLMENU: RET
;
;-----------------------------------------------------------------------
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;
;
END