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modem7
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m7od-5.aqm
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M7OD-5.ASM
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Assembly Source File
|
1985-02-09
|
15KB
|
584 lines
; M7OD-5.ASM - Overlay for Osborne-01 with the COMM-PAC Modem 05/07/84
; Auto-dialing supported.
;
; This overlay will work (ONLY) with MDM740.COM
;
;=======================================================================
;
; You will want to look this file over carefully. There are a number of
; options that can be used to configure the program to suit your taste.
;
; Use the "SET" command to change the baudrate when desired. It starts
; out at 300 baud when the program is first called up, but remember, the
; COMM-PAC only works at 300 baud.
;
;
; 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 MDM740.COM
; DDT VERS 2.2
; NEXT PC
; 4A00 0100
; -IM7OD-5.HEX (note the "I" command)
; -R (loads in the .HEX file)
; NEXT PC
; 4A00 0000
; -G0 (return to CP/M)
; A>SAVE 73 MDM740.COM (or MDM.COM )
;
; You now have a modified .COM file.
;
;=======================================================================
;Rev. 5 05/07/84 - Modified to work with MDM740.COM
; - Irv Hoff
;
;Rev. 4 04/06/84 - Updated to work with MDM730.COM.
; - John Riehl, FOG #2836
; Days: 1-713-644-7070
; Home: 1-713-488-1257
;
;Rev. 3 03/17/84 - Updated to work with MDM727A.COM.
; - John Riehl
;
;
;Rev. 2 02/05/84 - Updated to work with MDM720.COM Removed routines
; which were already in the main program and made
; an effort to retain the Smartmodem routines.
; - John Riehl
;
;Rev. 1 12/08/83 - Changed from CTL-C to CTL-V to turn on carrier
; after using telephone dialer in the Terminal mode.
; Changed from CTL-^ to <ESC> for "Send next character"
; function. - John Riehl
;
; 12/05/83 - Original derived from M712OS.ASM
; by Irv Hoff and Paul Kelly
; - John Riehl
;=======================================================================
;
BDOS: EQU 5
PRINT: EQU 9
;
BELL: EQU 07H ;bell
CR: EQU 0DH ;carriage return
ESC: EQU 1BH ;escape
LF: EQU 0AH ;linefeed
;
YES: EQU 0FFH
NO: EQU 0
;
;
PORT EQU 2A00H
MODCTLP: EQU PORT ;status register for RS232
MODDATP: EQU PORT+1 ;data resister for RS232
MODSNDB: EQU 2 ;bit to test for ready to send
MODSNDR: EQU 2 ;modem send ready when high
MODRCVB: EQU 1 ;bit to test for received data
MODRCVR: EQU 1 ;modem receive ready when high
MODCARB: EQU 4 ;modem carrier on when low
;
;
;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
; SPECIAL EQUATES FOR COMM-PAC
;
MCBON: EQU 40H ;mask to turn on MCB
MCBOFF: EQU 0BFH ;mask to turn off MCB
;
WAITCTS: EQU 150 ;number of seconds (x5) to wait for the
;computer to answer after PMMI auto-dial
;100=20 sec, 150=30 sec, 255=51 sec.
;any number 0-255 acceptable
;
;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
; Change CLOCK to match your equipment
;
ORG 100H
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;must be NO leave this alone 103H
AUTODIAL: DB NO ;yes=HAYES-type autodial modem 104H
TOUCHPULSE: DB 'P' ;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 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 3 ;number of DIR columns shown 10AH
SETUPTST: DB YES ;yes=user-added Setup routine 10BH
SCRNTEST: DB YES ;cursor control routine 10CH
RETRY: DB YES ;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=convert rub to backspace 111H
TOGGLERUB: DB YES ;yes=allow toggling of 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 YES ;yes=allow transmission of logon 115H
;write logon sequence at location LOGON
NOSAVE: DB NO ;DO NOT CHANGE, MUST BE 'NO' FOR OS-1 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
COMMPAC: DB YES ;yes=Osborne COMM-PAC modem 11EH
EXTRA2: DB 0 ; 11FH
CARRIER: DB 'V'-40H ;^V = Turn on carrier 120H
NOCONNCT: DB 'N'-40H ;^N = Disconnect from the phone line 121H
LOGCHR: DB 'L'-40H ;^L = Send logon 122H
LSTCHR: DB 'P'-40H ;^P = Toggle printer 123H
UNSAVE: DB 'R'-40H ;^R = Close input text buffer 124H
TRANCHR: DB 'T'-40H ;^T = Transmit file to remote 125H
SAVECHR: DB 'Y'-40H ;^Y = Open input text buffer 126H
EXTCHR: DB ESC ;ESC= Send next character 127H
;
PULSERATE: DB 125 ;125=20pps dialing, 1=10pps
CHGBAUD: DB 'B'-40H ;^B = Used with PMMIMODEM in terminal
; mode to change baud rate on fly
;
IN$MODCTLP: CALL OSTAT ! RET ;get the I/O status 12AH
OUT$MODCTLP: CALL OSET ! RET ;setup I/O 12EH
DS 2
;
OUT$MODDATP: CALL OSOUT ! RET ;send a character to the I/O 134H
DS 6
;
IN$MODDATP: CALL OSIN ! RET ;get a character from the I/O 13EH
DS 6
;
ANI$MODRCVB: ANI MODRCVB ! RET ;bit to test for receive ready 148H
CPI$MODRCVR: CPI MODRCVR ! RET ;value of rcv. bit when ready 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
;
IN$BAUDRP: JMP IN$MODCTLP ;check modem carrier status 154H
;
;
;====================== SPECIAL PMMI PORT ==============================
;
OUT$BAUDRP: RET ! NOP ! NOP ;out baudrate port
;
;================== END OF SPECIAL PMMI PORT ===========================
;
;
OUT$MODCTL1: JMP MODCTL1 ;turn on modem carrier 15AH
OUT$MODCTL2: JMP MODCTL2 ;re-initialize modem 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
JMP$DIAL: JMP DIAL ; 162H
JMP$DISCONNT: DS 3 ; 165H
JMP$GOODBYE: DS 3 ; 168H
JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH
JMP$NEWBAUD: RET ! NOP ! NOP ;(by-passes PMMI routine) 16EH
JMP$NOPARITY: RET ! NOP ! NOP ;(by-passes PMMI routine) 171H
JMP$PARITY: RET ! NOP ! NOP ;(by-passes PMMI routine) 174H
JMP$SETUPR: JMP SETUPR ; 177H
JMP$SPCLMENU: RET ! NOP ! NOP ;(by-passes PMMI routine) 17AH
JMP$SYSVER: JMP SYSVER ; 17DH
JMP$BREAK: JMP MODCTL1 ;Turn on carrier 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$ILPRT ; 195H
DB 0,0,0,0,0 ;O-1 has no clear EOS. 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 1AH,0,0,0,0 ;O-1 clear screen, home cursor 1A1H
RET ; 1A6H
;
;
;======================= SIGN-ON MESSAGE ==============================
;
; Send version number and date
;
SYSVER: CALL JMP$ILPRT
DB 'Version for Osborne COMM-PAC modem',CR,LF,0
RET
;.....
;
;
;-----------------------------------------------------------------------
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by address 0C00H
;
;-----------------------------------------------------------------------
;
; You can put in a message at this location which can be called up with
; CTL-O if TRANLOGON has been set TRUE. You can put in several lines if
; desired. End with a 0.
;
LOGON: DB 'Your 3 minutes is up, deposit 25 cents',CR,LF,0
;.....
;
;
ACIACTLB: DB 56H ;ACIA control byte
;.....
;
;
; This is the Osborne initialization routine.
;
INITMOD: LDA FINITFLG ;flag set yet?
ORA A
RNZ ;if yes, already been this way once
INR A ;otherwise set flag..
STA FINITFLG ;..and initialize this routine
LHLD BDOS+1 ;find start of bdos
LXI D,-0100H ;go to first page ahead of BDOS
DAD D ;HL now positioned one page below BDOS
PUSH H ;save the address
LXI D,BDJ ;point to our routine to put there
LXI B,CDLEN+2 ;set length of code
XCHG
DB 0EDH,0B0H ;Z80 LDIR
LHLD BDOS+1 ;get BDOS address back once more
POP D ;get the starting address off stack
PUSH D ;put it back on the stack
INX D ;point to address position
XCHG ;put into 'HL'
MOV M,E ;store 'LSP' address
INX H ;get 'LSP' location
MOV M,D ;store 'MSP' address
POP H ;get the address back once more
SHLD BDOS+1 ;new address to protect for overwrite
LXI D,OSIN-BDJ ;get the length of routine to move
DAD D ;compute address of the 'OSIN' routine
SHLD IN$MODDATP+1 ;patch call for "get char." routine
LXI D,OSOUT-OSIN
DAD D
SHLD OUT$MODDATP+1 ;patch call for "send char." routine
LXI D,OSTAT-OSOUT
DAD D
SHLD IN$MODCTLP+1 ;patch call for "get status" routine
LXI D,OSET-OSTAT
DAD D
SHLD OUT$MODCTLP+1 ;patch jmp for "send ACIA ctl" routine
;
MVI A,1 ;MSPEED 300 bps value
STA MSPEED
;
;
; Set the initial baud rate to 300
;
MVI A,56H ;for 300 bps
SETUPR1: STA ACIACTLB
;
MODCTL2: PUSH B
MVI C,3
;
CNT: MVI B,6BH
LDA ACIACTLB
ORI MCBON
CALL SETBAUD
CALL DELAY
MVI B,6BH
LDA ACIACTLB
ANI MCBOFF
CALL SETBAUD
CALL DELAY
DCR C
JNZ CNT
MVI B,6BH
LDA ACIACTLB
ORI MCBON
CALL SETBAUD
CALL DELAY
MVI B,6BH
MVI A,3
CALL SETBAUD
CALL DELAY
LDA ACIACTLB
ORI MCBON
CALL SETBAUD
POP B
RET
;...
;
;
SETBAUD: PUSH H
CALL OUT$MODCTLP
POP H
XRA A ;clear carry
RET
;.....
;
;
; change the baud rate with the set command
;
SETUPR: PUSH H
;
AGAIN: LXI D,BAUDBUF ;point to input buffer
CALL JMP$ILPRT
DB 'Input Baud Rate (300, 1200): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;compare BAUDBUF+2 with characters below
DB '300',0
MVI A,1 ;mspeed 300 baud
STA MSPEED
MVI A,56H ;Osborne 300 BPS
JNC OK ;go if got match
;
CALL JMP$INLNCOMP
DB '1200',0
MVI A,5 ;MSPEED 1200 bps
STA MSPEED
MVI A,55H ;Osborne 1200 baud
JNC OK
CALL JMP$ILPRT ;all matches failed - tell operator
DB '++ Incorrect entry ++',CR,LF,BELL,0
JMP AGAIN ;try again
;...
;
;
OK: POP H
JMP SETUPR1
;.....
;
;
MODCTL0: LDA ACIACTLB
ORI MCBON
CALL SETBAUD
CALL BIGDELAY
;.....
;
;
MODCTL1: LDA ACIACTLB
ANI MCBOFF
CALL SETBAUD
RET
;.....
;
;
DELAY: DCR B
JNZ DELAY
RET
;.....
;
;
BIGDELAY1:MOV B,A
CALL DELAY
DCR C
JNZ BIGDELAY1
RET
;
BIGDELAY: PUSH PSW
PUSH B
MVI B,40
MVI C,0
MOV A,B
CALL BIGDELAY1
POP B
POP PSW
RET
;.....
;
;
BAUDBUF: DB 10,0
DS 10
;
FINITFLG: DB 0
;.....
;
;
; Routines that get placed just under 'BDOS' overlaying 'CCP'
;
BDJ: JMP $-$ ;this gets patched to jump to BDOS entry
;
OSIN: DI ;disable interrupts
OUT 0 ;switch to alternate page
LDA MODDATP ;get data byte
OUT 1 ;switch pages back
EI ;enable interrupts
RET
;.....
;
;
OSOUT: DI ;disable interrupts
OUT 0 ;switch to alternate page
STA MODDATP ;send data byte
OUT 1 ;switch pages back
EI ;enable interrupts
RET
;.....
;
;
OSTAT: DI ;disable interrupts
OUT 0 ;switch to alternate page
LDA MODCTLP ;get status byte
OUT 1 ;switch pages back
EI ;enable interrupts
RET
;.....
;
;
OSET: DI
OUT 0
STA MODCTLP
OUT 1
EI
RET
;.....
;
CDLEN: EQU $-BDJ ;length of code to copy
;
;
;=======================================================================
;
; COMM-Pac dialing routines
;
;=======================================================================
;
; Changes to dialing routines
;
ORG 0400H
DIAL: LDA COMMPAC
;.....
;
;
; Change to DIAL19
;
ORG 05F7H
DB 0,0,0,0,0
;.....
;
;
; Change to DIALAGN
;
ORG 0633H
DB 'N): ',BELL,0,7CH,7CH
;.....
;
;
; Sends the digit to the modem and converts it to the correct number of
; pulses. Waits 200 ms. after each digit dialed.
;
ORG 071BH
DIALA4: PUSH B
CALL MODCTL0
CALL BIGDELAY
POP B
DCR C
JNZ DIALA4
MVI B,2
JMP JMP$TIMER
;.....
;
;
; Disconnect from the line, reconnect and wait for the dialtone.
;
ORG 07A4H
CALL DISCON0
MVI B,2
CALL JMP$TIMER
CALL OUT$MODCTL1
MVI D,MODCARB
MVI C,10
JMP WAIT
;.....
;
;
; Change to DISCONNT:
;
ORG 0824H
DISCON0:XRA A
DB 0,0,0
;.....
;
;
; Smartmodem SPKRFLG:
;
ORG 089AH
DB 0FFH
;.....
;
;
; Changes to RINGBK:
;
ORG 0994H
DB MODCARB ;carrier detect mask
;.....
;
;
; Change to HANGUP:
;
ORG 0A16H
RET
;.....
;
;
WAIT: EQU 0A51H
;
;=======================================================================
;
ORG 0E00H-2
HEXSHOW:DB NO ;show hex length
SAVSIZ: DB 20H ;buffer size = 4k
;.....
;
;
ORG 1426H
DW COMMPAC ;enable 'C' option in command line
;.....
;
;
ORG 152CH
DW COMMPAC ;accept 'C' option
;
ORG 20B2H
DB 0C3H ;changes JZ to JMP
;.....
;
;
ORG 39A5H
DW COMMPAC ;disable 'NUM" desription in menu
;
ORG 3A1CH
DW COMMPAC ;enable 'CAL' description in menu
;.....
;
;
ORG 3B37H
DB ' - Turn on MODEM carrier ',CR,LF,0
;.....
;
;
ORG 3EF3H
DW COMMPAC ;disable 'NUM' in command mode
;.....
;
;
ORG 3F44H
DW COMMPAC ;enable 'CAL' in command mode
;.....
;
;
END