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m7jc-2.aqm
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M7JC-2.ASM
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Assembly Source File
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1985-02-09
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14KB
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459 lines
; M7JC-2.ASM Apple/J-Cat overlay file for MDM727. 03/10/84
;+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
; This file is a patch of M7AP-1.ASM overlay designed to
; allow auto-dialing through a Novation J-Cat modem.
;
; The equates and patches in this file are set up for the combination
; of an Apple Super Serial Card in slot 2, with a Novation J-Cat modem.
; The J-cat is 300-baud only, so I have eliminated the routine for
; changing baud rate that was in the original.
;
; In order to dial with the J-Cat, the modem's OHK line (pin 7 on the
; modem's card-edge connector; blue unconnected line in the DB25
; connector provided with the modem) must be connected to the Apple's
; AN(1) annunciator (pin 14 on the game I/O socket). {Actually, it
; could be connected to one of the other annunciator ports, if the
; "onhook" and "offhook" equates below are changed to refer to that
; annunciator.}
; -- David W. Walker 71076,411
;++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
; This overlay file enables Apple II computers with the Apple Super
; Serial card and external modem to use the MDM727 phone modem program.
; It also supports the following Apple modem configurations:
;
; a) CCS 7710 serial interface and external modem
; b) SSM serial interface and external modem
; c) Apple communications interface and external modem
;
; 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.
; Much of the information contained here is not in the MDM727.ASM file.
;
; Edit this file for your preferences then follow the "TO USE:" example.
;
; 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 MDM727.COM
; DDT VERS 2.2
; NEXT PC
; 4900 0100
; -IM7JC-1.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4900 0000
; -G0 (return to CP/M)
; A>SAVE 73 MDM727.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 03/10/84 - Addresses for MDM727 - D. W. Walker
; 02/19/84 - Addresses for MDM724 - D. W. Walker
; 10/04/83 - J-Cat dialing routines added - D. W. Walker
; 07/27/83 - Renamed to work with MDM712 - Irv Hoff
; 07/01/83 - Revised to work with MDM711 - Irv Hoff
; 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
; 02/27/83 - Updated to work with MDM705 - Irv Hoff
; 02/12/83 - Used MDM703CF to make this file
; for Apple computers using a var-
; iety of serial interface cards
; with external modem. - Bruce Kargol
;
; = = = = = = = = = = = = = = = = =
;
BELL: EQU 07H ;bell
CR: EQU 0DH ;carriage return
ESC: EQU 1BH ;escape
LF: EQU 0AH ;linefeed
;
YES: EQU 0FFH
NO: EQU 0
;
;
CCS: EQU NO ;YES for CCS 7710
COMCARD: EQU NO ;YES for Apple comcard
SSC: EQU YES ;YES for Super Serial Card
SSM: EQU NO ;YES for SSM serial card
;
IF CCS
MODDATP: EQU 0E0A1H ;data port of CCS 7710
MODCTL1: EQU 0E0A0H ;status port of CCS 7710
ENDIF ;endif CCS
;
IF COMCARD
MODDATP: EQU 0E0AFH ;data port of Comcard
MODCTL1: EQU 0E0AEH ;status port of Comcard
ENDIF ;endif Comcard
;
IF SSM
MODDATP: EQU 0E0A5H ;data port of SSM
MODCTL1: EQU 0E0A4H ;status port of SSM
ENDIF ;endif SSM
;
IF SSC
MODDATP: EQU 0E0A8H ;data port of Apple Super Serial Card
MODCTL1: EQU 0E0A9H ;modem status port of Super Serial Card
COMMAND: EQU 0E0AAH ;SSC command register
MODBDP: EQU 0E0ABH ;SSC ACIA control register
;
MODRCVB: EQU 08H ;bit to test for received data
MODRCVR: EQU 08H ;modem receive ready
MODSNDB: EQU 10H ;bit to test for ready to send
MODSNDR: EQU 10H ;modem send ready bit
DTR EQU 0BH ;dtr,xmit on(rts low),irq disabled
ENDIF ;endif SSC
;
;
; Apple status bit equates for CCS, Comcard and SSM
;
IF NOT SSC
MODSNDB: EQU 02H ;bit to test for send
MODSNDR: EQU 02H ;value when ready
MODRCVB: EQU 01H ;bit to test for receive
MODRCVR: EQU 01H ;value when ready
ENDIF ;not SSC
;
; Equates for routines in the body of MDM727.COM, needed to make
; the J-Cat auto-dialing routines work with the PMMI routines in
; MDM727:
;
;
DIAL15: EQU 05DFH
DIALAGN: EQU 05FBH
CONMADE: EQU 06A9H
DIALA2: EQU 0725H
DIALBGN: EQU 07A9H
DISCONNT: EQU 0820H
WAIT: EQU 09BEH
FNKCHR: EQU 12C9H
RESTART: EQU 141FH
INITADR: EQU 1484H
RETURN: EQU 196EH
GOLIST: EQU 2033H
BREAK: EQU 2098H
TYPE: EQU 2B71H
;
; Values for Novation J-Cat using Ann(1) as offhook line
;
ONHOOK EQU 0E05AH
OFFHOOK EQU 0E05BH
;
;
ORG 100H
;
;
; Change the clock speed to match your equipment
;
DS 3 ;(for "JMP START" instruction)
;
; J-Cat dialing routines patched over PMMI routines {DWW 10-04-83}
; IF J-Cat OHK line is not connected, set both PMMIMODEM and
; SMARTMODEM to NO
;
PMMIMODEM: DB YES ;yes=J-Cat auto-dial enabled 103H
SMARTMODEM: DB NO ;yes=HAYES Smartmodem, no=non-pmmi 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 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 3 ;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 NO ;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 NO ;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 300 ms. break tone 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 '\'-40H ;^\ = Send next character 127H
DS 2 ; 128H
;
IN$MODCTL1: LDA MODCTL1 ! RET ;in modem control port 12AH
DS 6
OUT$MODDATP: STA MODDATP ! RET ;out modem data port 134H
DS 6
IN$MODDATP: LDA MODDATP ! RET ;in modem data port 13EH
DS 6 ;spares if needed
;
ANI$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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 12 ;PMMI only calls 154H
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$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
EOSCLR: DB esc,'Y',0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB esc,'*',0,0,0 ; 1A1H
RET ; 1A6H
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Version for Apple II with J-Cat modem'
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 (601 bytes
; available after start of SYSVER) if using the Hayes Smartmodem
; or by address 0C00H (2659 bytes) 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 'Logon message here',0
;
; The following is used to initialize the Apple SSC on execution of the
; program.
;
INITMOD: mvi a,1 ;default transfer time to 300
sta mspeed
mvi a,DTR
sta COMMAND
lda MODBDP ;current baudrate from moddll
ani 0f0h ;zero the last 4 bits
;
initmod1: ori 06h ;get default baudrate (300)
ani 9fh ;set 8 data bits
ani 7fh ;set 1 stop bit
sta MODBDP ;store default baudrate
ret
;.....
;
SETUPR: jmp initmod
;
; J-Cat is 300 baud only -- no need to change
;
;.....
;
; send break through SSC -- 233 msec space
;
SENDBRK:
lda COMMAND
push psw ; save register content
ori 0ch ; set bits 2,3
sta COMMAND ; break line
push b
lxi b,233 ; wait 233 msec
call delay
pop b
pop psw ; get original register
sta COMMAND ; restore it
ret
;
GOODBYE:
sta ONHOOK
push b
lxi b,25 ;on hook for 25 msec
call delay
pop b
sta OFFHOOK
push b
lxi b,20 ;off hook for 20 msec
call delay
pop b
sta ONHOOK ;final disconnect
RET
;
; wait for the number of millisecs in B,C
delay: push d ;save d,e
inr b ;bump b for later dcr
;
delay1 mvi e,126 ;delay count for 1 millisec (Apple Z80 clock=2.041mhz)
delay2 dcr e ;count
jnz delay2 ; down
dcr c ;more millisecs?
jnz delay1 ; yes
dcr b ;no - more in hi byte?
jnz delay1 ; yes
pop d ; no, restore d,e
ret
;
;-----------------------------------------------------------------------
;
; The following routine can be used to display commands on the screen
; of interest to users of this equipment.
;
SPCLMENU: RET
;
;-----------------------------------------------------------------------
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;
;-----------------------------------------------------------------------
;
; J-Cat Dialing Routines
;
; Wait for carrier
;
org DIAL15
mvi d,20h ; mask for carrier detected bit
mvi c,96h ; limit time waiting for carrier
call WAIT
jnc CONMADE
call hangup
jmp DIALAGN
; Dial a digit
org DIALA2+8
pulse: push b
sta ONHOOK
lxi b,61 ;pulse
call delay
sta OFFHOOK
lxi b,39 ;delay between pulses
call delay
pop b
dcr c ;any more pulses?
jnz pulse ;yes, do them
lxi b,300 ;300-millisec delay between digits
call delay
ret
; Wait 2 seconds for dial tone
org DIALBGN+5
mvi a,dtr
sta MODCTL1 ; enable modem
sta offhook ; connect phone
lxi b,2000
call delay
ora a ; clear carry
ret
; Hang up phone
org DISCONNT
hangup: jmp goodbye
; Check for carrier
org WAIT+5
lda MODCTL1 ;get modem status
; Patch out PMMI-specific routines, etc.
org RESTART+20H
cnz SETUPR ; original calls address not used here
org RETURN+23H
call JMP$INITMOD ; J-Cat needs re-init after dialing
org BREAK
jmp JMP$BREAK ; don't use PMMI break routine
; The Microsoft CP/M BIOS implementation always returns FALSE
; for the status of the LST: device, so the MDM727 printer output
; routine never sends anything to the printer. To repair that, the
; simplest patch is to skip over the LST: status test in MDM727.
; That requires a printer fast enough to keep up with the screen
; output. At 300 baud, that may be feasible:
org GOLIST+4
nop ; patch out return if LST: not ready
; Another cure, if your printer card can deliver a status byte, would
; be to patch in a status test (returning zero if printer not ready,
; non-zero if printer can accept a character) in some unused space
; and patch a CALL to that routine at GOLIST. That requires yet another
; patch, because the INITADR routine in MDM727 automatically patches a
; call to the BIOS LISTST routine at GOLIST. Here's an example, for a
; Videx PSIO card (serial port) in slot 1:
org 0D00H ; unused space
PRNTST: lda 0E099H ; PSIO status port
ani 10H ; check bit 4
ret ; carry set = ready
org INITADR+15h
NOP
NOP
NOP
org GOLIST
call PRNTST
ora a ; duplicate original code
rz
END