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Assembly Source File | 1994-07-13 | 10.9 KB | 367 lines

; M7BT-1.ASM -- Beehive "TOPPER" overlay file for MDM7xx. 11/20/85 ; ; ; This overlay adapts the MDM7xx program to the Beehive TOPPER ; computer, using the Z80 DART and Z80 CTC. ; ; 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 the Beehive TOPPER ; computer with the Z80 DART main serial port and the Z80 CTC baud rate ; generator. Note that in the TOPPER the Z80 CTC controls the RX speed ; and the TX speed from different CTC port addresses. The allows the ; TOPPER to operate the RX and TX at different baud rates, in this ; overlay both will be SET at the same baud rate. ; ; 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, LASM.COM, or ; equivalent assembler. Then use MLOAD to overlay the ; results of this program to the original .COM file: ; ; MLOAD MODEM.COM=MDM7xx.COM,M7BT-1.HEX ; ^ ^ ; | | ; Name you want for program Name of the MODEM source file. ; MDM740, MODM700, etc ; ; = = = = = = = = = = = = = = = = = = ; History: ; ; 11/20/85 - Original version from Lillypond Softwares - Dennis Recla ; Garland, Texas (214) 270-1834 ; ; = = = = = = = = = = = = = = = = = = ; 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 9AH MODCTL1 EQU PORT ;DART Modem Control Port MODDATP: EQU PORT-2 ;DART Data Port MODRCVB: EQU 1 ;Bit to test for receive MODRCVR: EQU 1 ;Value when ready MODSNDB: EQU 4 ;Bit to test for send MODSNDR: EQU 4 ;Value when ready CTC1: EQU 90H ;CTC addr RX speed CTC2: EQU 91H ;CTC addr TX speed ; ORG 100H ; ; ; Change the clock speed if needed, to match 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 YES ;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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H DS 12 ; 156H ; ; LOGONPTR: DW LOGON ;for user message. 160H DS 6 ; 162H JMP$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 ESC,'J',0,0,0 ; 198H RET ; 19DH ; CLRSCRN: CALL JMP$ILPRT ; 19EH DB ESC,'E',0,0,0 ; 1A1H RET ; 1A6H ; SYSVER: CALL JMP$ILPRT ; 1A7H DB 'Version for Beehive Topper Computer',CR,LF DB ' From ',ESC,'d','C','Lillypond Softwares ' DB ESC,'d','@','11/20/85',CR,LF DB ' Initial baud rate set for 1200',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 'This is a Beehive Topper Computer',CR,LF,0 ;..... ; ; ; Routine to send a 300 msec. break tone to reset some time-share ; computers. ; SENDBRK: MVI A,5 ; OUT PORT MVI A,0FAH ; Send BREAK tone from DART JMP GOODBYE1 ;..... ; ; ; Routine to put DTR low for 300 msec. to disconnect from Modem. ; GOODBYE: MVI A,05H ;Write register 5 of DART OUT PORT MVI A,68H ;Drop DTR and RTS ; GOODBYE1: OUT PORT MVI B,3 ;Wait for 300 Msec. CALL JMP$TIMER ;Turn on the timer. MVI A,5 ;Write register 5 again OUT PORT MVI A,0EAH ;Put things back to normal. OUT PORT RET ;..... ; ; ; The following is used to initialize the TOPPER Z80 DART. ; MAIN Port is used,Baud rate is initially set to 1200. ; INITMOD: DI ;no interupts during setup ; MVI A,5 ;default transfer speed to 1200 baud STA MSPEED ; ; MVI A,01H ;Write register 1 of DART OUT PORT ;Control Port MVI A,00H ;Turn off all the interupts from DART OUT PORT ; Topper is all interupt driven ; MVI A,03H ;write register 3 of DART OUT PORT ; MVI A,0C1H ;rcv 8 bits/char, rcv enable OUT PORT ; (1100 0001) ; MVI A,04H ;write register 4 of DART OUT PORT ;contol port MVI A,44H ;x16, 1 stop bit, no parity OUT PORT ; (0100 0100) ; MVI A,05H ;write register 5 of DART OUT PORT ; MVI A,0EAH ;DTR,8 bits/char, tx enable, rts enable OUT PORT ; (1110 1010) ; MVI A,47H ;counter mode,contol word time constant follows CALL CTCSET MVI A,40H ; CALL CTCSET ; EI ;System interupts back on ; RET ; ;..... ; ; Come here to set up the various Baud rates you require. ; ; SETUPR: LXI D,BAUDBUF ;point to input buffer for INLNCOMP CALL JMP$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 B300 ;jump if good match CALL JMP$INLNCOMP DB '1200',0 ; JNC B1200 ; CALL JMP$INLNCOMP ; DB '2400',0 JNC B2400 CALL JMP$INLNCOMP DB '4800',0 JNC B4800 CALL JMP$INLNCOMP DB '9600',0 ; JNC B9600 ; CALL JMP$INLNCOMP DB '19200',0 JNC B19200 CALL JMP$ILPRT ;no matches, tell operator DB LF,'++ Incorrect entry ++',CR,LF,LF,BELL,0 JMP SETUPR ;try it again ; ; B300: MVI A,1 ;MSPEED 300 baud value STA MSPEED CALL DART1 ;set up DART MVI A,40H ;300 Baud divisor CALL CTCSET RET ; B1200: MVI A,5 ;MSPEED 1200 baud value STA MSPEED CALL DART ;set up DART MVI A,40H CALL CTCSET RET ; B2400: MVI A,6 ;MSPEED 2400 baud value STA MSPEED CALL DART ;set up DART MVI A,20H CALL CTCSET RET ; B4800: MVI A,7 ;MSPEED 4800 baud value STA MSPEED CALL DART ;set up DART MVI A,10H CALL CTCSET RET ; B9600: MVI A,8 ;MSPEED 9600 baud value STA MSPEED CALL DART ;set up DART MVI A,08H CALL CTCSET RET ; B19200: MVI A,9 ;MSPEED 19200 baud value STA MSPEED CALL DART MVI A,04H ;write register 4 CALL CTCSET RET ; DART: MVI A,04H ;write register 4 DART OUT PORT ;control port MVI A,44H ;x16, 1 stop bit, no parity JMP DART2 ; ; DART1: MVI A,04H ;write register 4 DART OUT PORT ;control port MVI A,64H ;x64 DART2: OUT PORT ; MVI A,47H ;prescale x16, time constant follows ; control word CALL CTCSET RET ; CTCSET: OUT CTC1 ;set the RX speed ; OUT CTC2 ;set the TX speed RET BAUDBUF: DB 10,0 DS 10 ; ; If using the Hayes Smartmodem this is unavailable without a special ; change. ; SPCLMENU: RET ; ; ; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem) ; 0C00H (without Smartmodem) ;..... ; END ;