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Assembly Source File | 1994-07-13 | 12.4 KB | 404 lines

; M7CD-2.ASM MODIFIED TO INIT AND CHANGE BAUD RATES ON THE TUART ; SECOND PORT AT 20H ; 6/24/84 BY CARL AHLERS ; M7CD-1.ASM -- OVERLAY FOR CROMEMCO CDOS 2.54 OR GREATER COPIED ; FROM M7GP-1.ASM DATED 11/11/83 BY FORD BUCKNER ; This is setup for use with a TUART board on PORT 50 driving a ; US ROBOTICS 212a modem. ; ; M7GP-1.ASM -- General purpose 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 places particular emphasis on using an external modem that ; does not match one of the other special overlays. You would use the ; normal CP/M "Configure" program to set the modem to whatever baud rate ; you would normally use (such as 300 or 1200, etc.) Then perhaps just ; make a second .COM file if you need both 300 and 1200 and do not wish ; to write your own initialization or "set baud" routine. ; ; You could look at other overlay files to see how the GOODBYE and/or ; SETUPR areas are handled. You could then adapt one of those, if ap- ; propriate for your equipment in this overlay. Some examples: ; ; "DP" Datapoint 1560 overlay using 8251 I/O and CTC timers for ; setting baud rates ; "H8" Heath H89 overlay for 8250 I/O and programmable baud rates ; "HZ" Zenith 120 overlay for 2661B initialization and baud rates ; "XE" Xerox 820II overlay for Z80-SIO intialization, etc. ; ; Edit this file for your preferences then follow the "TO USE:" example ; shown below. ; ; 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 ; -IM7GP-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) ; ; = = = = = = = = = = = = = = = = = = ; ; 06/24/84 - Renamed to M7CD-2.asm - Carl Ahlers ; 11/27/83 - Renamed to M7CD-1.asm - Ford Buckner ; 11/11/83 - Renamed to M7GP-1.ASM, no changes - Irv Hoff ; 07/27/83 - Renamed to work with MDM712 - Irv Hoff ; 07/01/83 - Revised to work with MDM711 - Irv Hoff ; 07/01/83 - 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 - First version of this file - Irv Hoff ; ; = = = = = = = = = = = = = = = = = ; BELL: EQU 07H ;bell CR: EQU 0DH ;carriage return ESC: EQU 1BH ;escape LF: EQU 0AH ;linefeed ; YES: EQU 0FFH NO: EQU 0 ; ; ; Change the following information to match your equipment ; PORT: EQU 050H MODCTL1: EQU PORT ;MODEM CONTROL PORT MODDATP: EQU PORT+1 ;MODEM DATA IN PORT MODDATO: EQU PORT+1 ;MODEM DATA OUT PORT MODCMDP: EQU PORT+2 ;MODEM COMMAND PORT MODMASK: EQU PORT+3 ;MODEM INTERRUPT PORT MODCTL2: EQU PORT+4 ;2ND MODEM CONTROL PORT BAUDRP: EQU PORT ;BAUD RATE PORT ; PORT@: EQU 020H MODCTL1@: EQU PORT@ ;MODEM CONTROL PORT MODDATP@: EQU PORT@+1 ;MODEM DATA IN PORT MODDATO@: EQU PORT@+1 ;MODEM DATA OUT PORT MODCMDP@: EQU PORT@+2 ;MODEM COMMAND PORT MODMASK@: EQU PORT@+3 ;MODEM INTERRUPT PORT MODCTL2@: EQU PORT@+4 ;2ND MODEM CONTROL PORT BAUDRP@: EQU PORT@ ;BAUD RATE PORT ; MODDCDB: EQU 2 ;CARRIER DETECT BIT MODDCDA: EQU 2 ;VALUE WHEN ACTIVE MODRCVB: EQU 40H ;BIT TO TEST FOR RECEIVE MODRCVR: EQU 40H ;VALUE WHEN READY MODSNDB: EQU 80H ;BIT TO TEST FOR SEND MODSNDR: EQU 80H ;VALUE WHEN READY ; STOPBIT: EQU 80H ;SETS MSB=1 FOR ONE STOP BIT BAUDRATE: EQU STOPBIT+08H ;1200 BAUD & ONE STOP BIT RESET: EQU 9 ;RESET TU-ART LOW$RNG: EQU 0 ;LOW BAUD RATE RANGE HIGH$RNG: EQU 10H ;HIGH BAUD RATE RANGE ; 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 YES ;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 5 ;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 YES ;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=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$MODCTL1: IN MODCTL1 ! RET ;in modem control port 12AH DS 7 OUT$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$MODRCVR: CPI MODRCVR ! RET ;value of rcv. bit when ready 14BH ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 14EH CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H DS 6 ; 156H ; OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #2 15AH OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem control port #1 15DH ; LOGONPTR: DW LOGON ;for user message. 160H DS 6 ; 162H JMP$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$TIMER DS 3 ; 192H ; ; ; Routine to clear to end of screen. If using CLREOS and CLRSCRN, set ; SCRNTEST to YES at 010AH (above). ; CLREOS: CALL JMP$ILPRT ; 195H DB 1BH,'J',0,0,0 ; 198H RET ; 19DH ; CLRSCRN: CALL JMP$ILPRT ; 19EH DB 1BH,'E',0,0,0 ; 1A1H RET ; 1A6H ; SYSVER: CALL JMP$ILPRT ; 1A7H DB 'Cromemco Version with TU-ART & 3102' 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 use several lines if ; desired. End with a 0. ; LOGON: DB 'How are you today?',CR,LF,0 ; ; ; This routine allows a 300 ms. break tone to be sent to reset some ; time-shar computers. ; SENDBRK: RET ;..... ; ; ; 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: RET ;..... ; ; ; CROMEMCO TU-ART initialization ; INITMOD: PUSH B MVI A,RESET ADI LOW$RNG ;RESET AND SELECT BAUD RATE RANGE MOV B,A OUT MODCMDP@ MVI A,BAUDRATE ;SET BAUD RATE MOV C,A OUT BAUDRP@ MVI A,0 ;SET FOR NO INTERUPTS OUT MODMASK@ ; INITMOD1: MOV A,B ;RESET AND SELECT BAUD RATE RANGE OUT MODCMDP ; INITMOD2: MOV A,C ;SET BAUD RATE OUT BAUDRP ; INITMOD3: MVI A,0 ;SET FOR NO INTERUPTS OUT MODMASK POP B RET ;..... ; ; ; Setup routine to allow changing modem speed with the SET command. ; SETUPR: LXI D,BAUDBUF ;POINT TO NEW INPUT BUFFER CALL JMP$ILPRT DB 'Input Baud Rate (300,1200,2400,4800,9600,19200): ',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$INLNCOMP DB '1200',0 JNC OK1200 CALL JMP$INLNCOMP DB '2400',0 JNC OK2400 CALL JMP$INLNCOMP DB '4800',0 JNC OK4800 CALL JMP$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,RESET ADI LOW$RNG PUSH B MOV B,A LDA BD300 MOV C,A MVI A,1 ;MSPEED VALUE FOR FILE TRANFER TIME JMP LOADBD ; OK1200: MVI A,RESET ADI LOW$RNG PUSH B MOV B,A LDA BD1200 MOV C,A MVI A,5 JMP LOADBD ; OK2400: MVI A,RESET ADI LOW$RNG PUSH B MOV B,A LDA BD2400 MOV C,A MVI A,6 JMP LOADBD ; OK4800: MVI A,RESET ADI LOW$RNG PUSH B MOV B,A LDA BD4800 MOV C,A MVI A,7 JMP LOADBD ; OK9600: MVI A,RESET ADI LOW$RNG PUSH B MOV B,A LDA BD9600 MOV C,A MVI A,8 JMP LOADBD ; OK19200: MVI A,RESET ADI HIGH$RNG PUSH B MOV B,A LDA BD19200 MOV C,A MVI A,9 ; LOADBD: STA MSPEED ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE MOV A,M ;GET "MSP" BAUD RATE BYTE JMP INITMOD1 ;REINITIALIZE TO NEW BAUDRATE, THEN DONE ;..... ; ; ; Table of baud rate values ; ;BD300: DB STOPBIT+4H ;300 baud + STOP BIT ;BD1200: DB STOPBIT+8H ;1200 baud + STOP BIT ;BD2400: DB STOPBIT+10H ;2400 baud + STOP BIT ;BD4800: DB STOPBIT+20H ;4800 baud + STOP BIT ;BD9600: DB STOPBIT+40H ;9600 baud + STOP BIT ;BD19200: DB STOPBIT+10H ;19200 baud + STOP BIT ; BD300: DB 84H ;300 baud & ONE STOP BIT BD1200: DB 88H ;1200 baud & ONE STOP BIT BD2400: DB 90H ;2400 baud & ONE STOP BIT BD4800: DB 0A0H ;4800 baud & ONE STOP BIT BD9600: DB 0C0H ;9600 baud & ONE STOP BIT BD19200: DB 90H ;19200 baud & ONE STOP BIT (USE HIGH RANGE) ; 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 ;