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- ; 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
- LXI D,SETBD