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modem7
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m7nc-1.asm
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Assembly Source File
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1994-07-13
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10KB
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314 lines
; M7NC-1.ASM -- NCR DECISION MATE V overlay for MDM7xx. 07/01/84
;
; 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.
;
; Edit this file for your preferences then follow the "TO USE:" example
; shown below.
;
; Use the MDM7xx "SET" command to change the baudrate when desired. It
; starts out at 300 baud when the program is first called up.
;
;
; 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:
;
;=============================================================================
;
;NOTE: The use of the MDMLNK.COM utility makes the following process much
; simpler. You may want to use MDMLNK if it is available to you.
;
;=============================================================================
;
; A>DDT MDM7xx.COM
; DDT VERS 2.2
; NEXT PC
; 4A00 0100
; -IM7xx-x.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4A00 0000
; -G0 (return to CP/M)
; A>SAVE 73 MDM7xx.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 07/01/84 - Slight changes for MDM740 - Robert Flagg
; Renamed from M7DMV.ASM to avoid
; confusion with the Dynabyte Monarch
; overlay (M7DM-1.ASM)
; 05/30/84 - Renamed to M7DMV.ASM for use with
; NCR DMV - Mark Stamos
; 11/11/83 - Renamed to M7HZ-1.ASM, no changes - Irv Hoff
; 07/27/83 - Renamed to work with MDM712 - Irv Hoff
; 02/17/83 - Modified MDM703CF to work with
; Heath/Zenith -100 series com-
; puters with 2661B I/O - Irv Hoff
;
; = = = = = = = = = = = = = = = = =
;
BELL: EQU 07H ;bell
CR: EQU 0DH ;carriage return
ESC: EQU 1BH ;escape
LF: EQU 0AH ;linefeed
;
YES: EQU 0FFH
NO: EQU 0
;
;
MODDAT: EQU 070H ;data port for NCR DMV
MODSTAT: EQU 071H ;STATUS PORT
MODMODE: EQU 072H ;MODE REGISTER PORT
MODCMD: EQU 073H ;COMMAND PORT
WRITE: EQU 004H ;ADDED TO PORT ADDR FOR WRITE
MODRCVB: EQU 2 ;BIT TO TEST FOR INPUT DATA
MODRCVR: EQU 2 ;modem receive ready
MODSNDB: EQU 1 ;bit to test for ready to send
MODSNDR: EQU 1 ;modem send ready bit
;
;
ORG 100H
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
AUTODIAL: DB NO ;yes=HAYES-type modem 104H
TOUCHPULSE: DB 'T' ;T=touch, P=pulse (Smartmodem-only) 105H
CLOCK: DB 20 ;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 0 ;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 0 ;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
RETRY: DB NO ;yes=reset the error limit to try again 10DH
;no=abort after 10 consecutive errors
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
CONVRUB: DB YES ;yes=rub to backspace 111H
TOGGLERUB: DB YES ;yes=allow toggling rub to backspace 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 NO ;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=printer available on printer port 119H
XOFFTST: DB NO ;yes=checks 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 'L'-40H ;^L = Disconnect from the phone line 121H
LOGCHR: DB 'N'-40H ;^N = Send logon 122H
LSTCHR: DB 'P'-40H ;^P = TOGGLE PRINTER 123H
UNSAVE: DB 'R'-40H ;^R = close text buffer 124h
TRANCHR: DB 'T'-40H ;^T = Transmit file to remote 125H
SAVECHR: DB 'Y'-40H ;^Y = Open input text buffer 125H
EXTCHR: DB '^'-40H ;^^ = Send next character 126H
;
;
DS 2 ; 128H
;
IN$MODCTL1: IN MODSTAT ! RET ;in modem control port 12AH
DS 7
OUT$MODDATP: OUT MODDAT+4! RET ;out modem data port 134H
DS 7
IN$MODDATP: IN MODDAT ! RET ;in modem data port 13EH
DS 31
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$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$TIMER: DS 3 ; 192H
;
;
CLREOS: CALL JMP$ILPRT ; 195H
DB ESC,'Y',0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB ESC,':',0,0,0 ;CLEAR ENTIRE SCREEN 1A1H
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 0BH,CR
DB 'Version for NCR Decision Mate V with K211 interface'
DB CR,LF,0
DB RET
;.....
;
;
;-----------------------------------------------------------------------
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by 0400H (601 bytes
; available after start of SYSVER) if using the Hayes Smartmodem
; or by address 0C00H (2659 bytes available) otherwise.
;
;-----------------------------------------------------------------------
;
; You can put in a message at this location which can be called up with
; CTL-O if TRANLOGON has been set YES. You can put in several lines if
; desired. End with a 0.
;
LOGON: DB 'this is the place for your message',CR,LF,0
;.....
;
;
; This routine allows a 300 ms. break tone to be send to reset some
; time-share computers.
;
SENDBRK: MVI A,1DH ;SEND A BREAK TONE FOR 300 MS.
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,05H ;SET BREAK, DTR LOW
;
GOODBYE1: OUT MODCMD+4 ;PUT COMMAND REGISTER OUT OF MODE
IN MODCMD ;MAKE SURE IT IS NOW CLEAR
IN MODCMD ;TRY ONCE MORE
MVI B,3 ;DELAY FOR 300 MS.
CALL JMP$TIMER
MVI A,37H ;RESET RTS, FLAGS, DTR LOW, ENABLE R/T
OUT MODCMD+4 ;SEND TO COMMAND REGISTER
IN MODCMD ;CLEAR ANY INCOMING CHARS.
IN MODCMD ;TRY ONCE MORE
XRA A ;CLEAR THE 'A' REG.
RET
;.....
;
;
; The following are used in setting up the 2651B I/O port.
;
INITMOD: MVI A,1 ;DEFAULT TRANSFER TIME TO 300 BAUD
STA MSPEED
XRA A ;SET RTS, FLAGS, DTR, DISABLE R/T
OUT MODCMD+4 ;PUT COMMAND REGISTER OUT OF MODE
IN MODCMD ;MAKE SURE IT IS NOW CLEAR
IN MODCMD ;TRY ONCE MORE
MVI A,4EH ;1 STOP, NO PARITY, 8 BITS, 16X ASYNCH
OUT MODMODE+4 ;SEND TO MODE REGISTER 1
;
INITMOD1: MVI A,0F5H ;START WITH 300 BAUD, INTERNAL 5.0 CLOCK
OUT MODMODE+4 ;SEND TO MODE REGISTER 2
MVI A,37H ;RESET RTS, FLAGS, DTR LOW, ENABLE R/T
OUT MODCMD+4 ;SEND TO COMMAND REGISTER
IN MODCMD ;CLEAR ANY INCOMING CHARS.
IN MODCMD ;TRY ONCE MORE
XRA A ;CLEAR THE 'A' REG.
RET
;.....
;
;
; The following changes the baud rate with the SET command.
;
SETUPR: LXI D,BAUDBUF
CALL JMP$ILPRT
DB 'Input Baud Rate (110, 300, 1200, 9600): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP
DB '110',0
JNC OK110
CALL JMP$INLNCOMP ;COMPARE BAUDBUF+2 WITH CHARACTERS BELOW
DB '300',0
JNC OK300 ;GO IF GOT MATCH
CALL JMP$INLNCOMP
DB '1200',0
JNC OK1200
CALL JMP$INLNCOMP
DB '9600',0
JNC OK9600
CALL JMP$ILPRT ;ALL MATCHES FAILED, ASK AGAIN
DB '++ Incorrect entry ++',CR,LF,BELL,0
JMP SETUPR ;TRY AGAIN
;
OK110: MVI A,0 ;MSPEED 110 BAUD VALUE
LHLD BD110 ;GET 110 BAUD PARAMETERS IN 'HL'
JMP LOADBD ;GO LOAD THEM
;
OK300: MVI A,1
LHLD BD300
JMP LOADBD
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
OK9600: MVI A,8
LHLD BD9600
;
LOADBD: STA INITMOD+1
MOV A,L ;get least significant baud rate byte
STA INITMOD1+1 ;store in INITMOD1
JMP INITMOD ;reset Z-100 2661
;.....
;
;
; TABLE OF BAUDRATE PARAMETERS FOR 2661 I/O
;
BD110: DW 00F4H
BD300: DW 00F5H
BD1200: DW 00F7H
BD9600: DW 00FCH
;
BAUDBUF: DB 10,0
DS 10
;
;-----------------------------------------------------------------------
;
; The following routine could be used to display selections of interest
; to owners of this computer. If using the Hayes Smartmodem this is
; unavailable without a special change.
;
SPCLMENU: RET
;
;-----------------------------------------------------------------------
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;
END
;