; 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