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-
- ; M7AJ-1.ASM Apple J-CAT modem overlay file for MDM7xx - 11/11/83
- ;
- ; NOTICE
- ;
- ; This file is a patch of the M712AP.ASM overlay designed to allow auto-
- ; dialing through a Novation J-Cat modem and to provide for more than
- ; one "logon" message.
- ;
- ; Some of the patches here rely on addresses within the main body of the
- ; MDM7xx12.COM file. They are correct addresses for the copy of MDM712
- ; that I downloaded from Oxgate in October 1983. However, there is no
- ; guarantee that those addresses will be the same if the main program is
- ; updated.
- ;
- ; 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 Apple overlay.
- ;
- ; 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 con-
- ; nector provided with the modem) must be connected to the Apple's
- ; AN(0) annunciator (pin 15 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.}
- ;
- ;++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
- ;
- ; This overlay file enables Apple II computers with the Apple Super
- ; Serial card and external modem to use the MDM712 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 MDM712.ASM file.
- ;
- ; Edit this file for your preferences then follow the "TO USE:" example.
- ;
- ; Use the "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:
- ;
- ; A>DDT MDM7xx.COM
- ; DDT VERS 2.2
- ; NEXT PC
- ; 4300 0100
- ; -IM7AJ-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 M7AJ-1.ASM, no changes - Irv Hoff
- ; 10/06/83 - Multiple logon messages - D. W. Walker
- ; 10/04/83 - J-Cat dialing routines added - D. W. Walker
- ; 07/27/83 - Renamed to work with MDM712 - 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
- 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
- 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
- ;
- ;
- ; We have software control over the Super Serial Card so allow INITMOD
- ; SETUPR routines.
- ;
- ;
- 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}
- ;
- PMMIMODEM: DB YES ;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 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.
- ;
- ;
- ; Pad each message with nulls to make 20 bytes, so new logon routine can
- ; find the right one
- ;
- ; ^L1 will send first message to modem,
- ; ^L2 will send second message, and so on
- ;
- LOGON: DB 'The Source......',CR,0,0,0
- DB 'Compuserve...',CR,0,0,0,0,0,0
- DB 'Etc...',CR,0,0,0,0,0,0,0,0,0,0,0,0,0
- ;
- NUMLOGS:EQU 3 ;number of valid logon messages
- STAT: EQU 2595H ;keypress routine
- GETCHR: EQU 25A0H ;get typed char
- TYPE: EQU 25B4H ;send char to console
- ;
- LOGSELCT:
- PUSH B
- PUSH D
- LXI H,LOGON
- LXI D,20
- ;
- KYLP: CALL STAT ;wait for next keypress
- JZ KYLP
- CALL GETCHR ;get key
- CPI '1' ;in range?
- JC NOGOOD
- CPI NUMLOGS+'0'+1
- JNC NOGOOD
- SUI '0' ;in range, make it binary
- MOV C,A
- ;
- FINDLP: DCR C ;count down
- JZ DONE
- DAD D ;not found yet, add 20 to hl
- JMP FINDLP
- ;
- NOGOOD: MVI A,BELL
- CALL TYPE
- ;
- DONE: POP D
- POP B
- RET ;return with hl pointing to log message
- ;.....
- ;
- ;
- ; Values for Novation J-Cat using Ann(0) as offhook line
- ;
- ONHOOK: EQU 0E058H
- OFFHOOK:EQU 0E059H
- COMMAND:EQU MODCTL1+1 ;ssc command register
- DTR: EQU 0BH ;dtr, xmit on(rts low), irq disabled
- ;
- ;
- ; Send break through SSC -- 233 millisecond space tone
- ;
- 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
- ;.....
- ;
- ;
- ; You can add your own routine here to set DTR low and/or send a break
- ; tone to disconnect.
- ;
- 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
- ;.....
- ;
- ;
- ; ----> DELAY: Wait for the number of millisecsonds 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-2.041 mhz.)
- 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 address is used to set data bits, parity, stop bits
- ; and baud rate on the Super Serial Card.
- ;
- MODDLL: EQU MODCTL1+2 ;ssc acia control register
- ;
- ;
- ; End of SSC specific equates for initialization.
- ; 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 MODDLL ;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 MODDLL ;store default baudrate
- RET
- ;.....
- ;
- ;
- ; Changes the modem baud rate with set command.
- ;
- SETUPR: JMP INITMOD
- ;
- ; J-Cat is 300 baud only -- no need to change
- ;
- ;
- BAUDBUF:DW 10,0 ;tells clearbuf routine it can..
- DS 10 ;..clear next 10 bytes
- ;
- ;-----------------------------------------------------------------------
- ;
- ; 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
- ;
- ; The following patches adapt the exisiting PMMI dialing routines
- ; (located at 0400H) in MDM712.COM to dial through the Novation J-Cat
- ; modem, if the modem's OHK line is electrically connected to the AN(0)
- ; pin of the Apple game I/O port.
- ;
- ; Sensing of the dial tone and ring signals is not implemented in this
- ; version. In theory, that can be accomplished by connecting the J-Cat
- ; PLS line to one of the Apple's button inputs (or possibly the cassette
- ; input).
- ;
- NOCNCT: EQU 0593H ;no connection made
- CONNCTD:EQU 05F4H ;phone connected
- CKCARR: EQU 088AH ;check for carrier
- ;
- ;
- ; Wait for carrier
- ;
- ORG 0577H
- ;
- MVI D,20H ;mask for carrier detected bit
- MVI C,96H ;limit time waiting for carrier
- CALL CKCARR
- JNC CONNCTD
- CALL HANGUP
- JMP NOCNCT
- ;
- ;
- ; Dial a digit
- ;
- ORG 0679H
- ;
- 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 06F9H
- ;
- 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 076EH
-
- ;
- HANGUP: JMP GOODBYE
- ;
- ;
- ; Check for carrier
- ;
- ORG 088FH
- ;
- LDA MODCTL1 ;get modem status
- ;
- ;
- ; Patch out PMMI menu
- ;
- ORG 08B1H
- ;
- RET
- ;.....
- ;
- ;
- ; Number library
- ;
- ORG 0C00H
- ;
- DB 'A=The Source..............292-0600'
- DB 'B=Compuserve..............890-0232'
- DB 'C=A.P.P.L.E. Crate..1-206-935-9119'
- DB 'D=Oxgate............1-804-898-7493'
- DB 'E=Pirates Harbor..........720-3600'
- DB 'F=Termexec................863-0282'
- DB 'G=................................'
- DB 'H=................................'
- DB 'I=................................'
- DB 'J=................................'
- DB 'K=................................'
- DB 'L=................................'
- DB 'M=................................'
- DB 'N=................................'
- DB 'O=................................'
- DB 'P=................................'
- DB 'Q=................................'
- DB 'R=................................'
- DB 'S=................................'
- DB 'T=................................'
- DB 'U=................................'
- DB 'V=................................'
- DB 'W=................................'
- DB 'X=................................'
- DB 'Y=................................'
- DB 'Z=................................'
- ;
- ;
- ; Patch out PMMI-specific routines, etc.
- ;
- ORG 0FD5H
- ;
- CNZ JMP$INITMOD
- ORG 14EDH
- CALL JMP$INITMOD
- ORG 18A9H ;patch call to logon select
- CALL LOGSELCT
- ORG 1AEAH
- JMP 1807H ;use break routine from this file
- ;.....
- ;
- ;
- END
-