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Assembly Source File | 1994-07-13 | 11.0 KB | 349 lines

; MXO-H811.ASM-- Heath/Zenith H89 overlay file for MEX. 05/23/84 ; ; 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 Heath/Zenith equip- ; ment with 8250 serial I/O. Much of the information contained here is ; not in the main file. If not using the Heath/Zenith H89/Z89 equipment ; some of the routines here will illustrate what you could do with your ; unit. ; ; Use the "SET" command to change baudrate when desired. ; ; 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 MLOAD to overlay the the results ; of this program to the original .COM file. ; ; ; = = = = = = = = = = = = = = = = = = ; 07/27/84 - Added 9600 baud select - Bucky Carr ; 05/23/84 - Corrected clear-screen error - Biff Bueffel ; 05/19/84 - Converted for MEX10 - Biff Bueffel ; 11/11/83 - Renamed to M7H8-1.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 ; 06/22/83 - Revised to work with MDM710 - Irv Hoff ; 05/27/83 - Revised to work with MDM709 - Irv Hoff ; 05/15/83 - Revised to work with MDM708 - Irv Hoff ; 04/17/83 - Revised to work with MDM707 - Irv Hoff ; 04/04/83 - Updated to work with MDM706 - Irv Hoff ; 02/27/83 - Updated to work with MDM705 - Irv Hoff ; 02/17/83 - Updated to work with MDM704 - Irv Hoff ; 02/07/83 - Updated to work with MDM703 - Irv Hoff ; 01/27/83 - Updated to work with MDM702 - Irv Hoff ; 01/10/83 - Updated to work with MDM701 - Irv Hoff ; 10/03/82 - First version of this file ; ; = = = = = = = = = = = = = = = = = ; 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 value at MODDATP if it does not match what you are using. ; MODDATP: EQU 0D8H ;data port for H89 MODCTL1: EQU MODDATP+5 ;status port for H89 MODRCVB: EQU 1 ;bit to test for received data MODRCVR: EQU 1 ;modem receive ready MODSNDB: EQU 20H ;bit to test for ready to send MODSNDR: EQU 20H ;modem send ready bit ; ; MEX service processor stuff ; MEX EQU 0D00H ;address of the service processor INMDM EQU 255 ;get char from port to A, CY=no more in 100 ms TIMER EQU 254 ;delay 100ms * reg B TMDINP EQU 253 ;B=# secs to wait for char, cy=no char CHEKCC EQU 252 ;check for ^C from KBD, Z=present SNDRDY EQU 251 ;test for modem-send ready RCVRDY EQU 250 ;test for modem-receive ready SNDCHR EQU 249 ;send a character to the modem (after sndrdy) RCVCHR EQU 248 ;recv a char from modem (after rcvrdy) LOOKUP EQU 247 ;table search: see CMDTBL comments for info PARSFN EQU 246 ;parse filename from input stream BDPARS EQU 245 ;parse baud-rate from input stream SBLANK EQU 244 ;scan input stream to next non-blank EVALA EQU 243 ;evaluate numeric from input stream LKAHED EQU 242 ;get nxt char w/o removing from input GNC EQU 241 ;get char from input, cy=1 if none ILP EQU 240 ;inline print DECOUT EQU 239 ;decimal output PRBAUD EQU 238 ;print baud rate ; PRINT EQU 9 ;BDOS print-string function ; 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-Hayes 104H TOUCHPULSE: DB 'T' ;T=touch, P=pulse (Smartmodem-only) 105H CLOCK: DB 20 ;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 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 NO ;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 a 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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H DS 12 ;PMMI only calls 154H ; ; DS 2 ;Not used by MEX 160H DS 6 ; 162H JMP$GOODBYE: JMP GOODBYE ; 168H JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH JMP$NEWBAUD: JMP NEWBAUD ;Change baudrate 16EH RET ! NOP ! NOP ;(by-passes PMMI routine) 171H RET ! NOP ! NOP ;(by-passes PMMI routine) 174H JMP$SETUPR: JMP SETUPR ; 177H DS 3 ;Not used by MEX 17AH JMP$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 ; ; ; The following clear the screen for the H19 or H89 terminal ; CLREOS: LXI D,EOSMSG MVI C,PRINT CALL MEX RET ; CLRSCRN: LXI D,CLSMSG MVI C,PRINT CALL MEX RET ; ; SYSVER: MVI C,ILP CALL MEX DB 'Version for Heath/Zenith with 8250 I/O' 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 0B00H (601 bytes ; available after start of SYSVER) if using the Hayes Smartmodem ; or by address 0D00H (2659 bytes) otherwise. ; ;----------------------------------------------------------------------- ; ; ; ; This routine sends a 300 ms. break tone to reset some time-share ; computers. ; SENDBRK: MVI A,40H ;SET BREAK TONE OUT MODDATP+3 JMP GOODBYE1 ;SEND A 300 MS. BREAK TONE ;..... ; ; ; This routine sends a 300 ms. break tgone and set DTR low for the same ; length of time to disconnect some modems such as the Bell 212A, etc. ; GOODBYE: XRA A OUT MODDATP+4 ;SET DTR AND RTS LOW MVI A,40H ;SET BREAK TONE OUT MODDATP+3 ; GOODBYE1: MVI B,3 ;WAIT 300 MS. MVI C,TIMER CALL MEX MVI A,03H ;RESET TO NORMAL 8 BITS OUT MODDATP+3 MVI A,01H OUT MODDATP+4 ;RESET DTR HIGH RET ;..... ; ; ; The following is used to initialize the H89 8250 I/O port ; INITMOD: MVI A,5 ;default transfer speed to 1200 baud STA MSPEED DI ;turn off interrupts for init. XRA A OUT MODDATP+1 ;interrupt enable register MVI A,80H ;insure out of mode to set baud rate OUT MODDATP+3 ;line control register OUT MODDATP+3 ; LSPSPD: MVI A,60H ;default 'LSP' speed for 1200 baud OUT MODDATP ;register for 'LSP' speed if enabled ; MSPSPD: MVI A,00H ;default 'MSP' speed for 1200 baud OUT MODDATP+1 ;register for 'MSP' speed if enabled ; MVI A,03H ;8-level, 1 stop bit, no parity OUT MODDATP+3 ;line control register MVI A,01H ;set 'DTR' for proper modem output level OUT MODDATP+4 ;modem control register EI ;restore interrupts to normal RET ;..... ; ; ; The following routine changes the baud rate for the H89 with the SET ; command. ; ; SETUPR: MVI C,SBLANK ;Any arguments? CALL MEX JC TELL ;If not, go display baud LXI D,CMDTBL MVI C,LOOKUP CALL MEX ;Parse argument PUSH H ;Save any parsed argument addrs on stack RNC ;If we have one, return to it POP H ;Oops, input not found in table MVI C,ILP CALL MEX ;Tell user input not valid DB CR,LF,'300, 1200, or 9600 baud',CR,LF,0 RET ; CMDTBL: DB '30','0'+80H DW OK300 DB '120','0'+80H DW OK1200 DB '960','0'+80H DW OK9600 DB 0 ; TELL: MVI C,ILP CALL MEX ;Print current baud rate DB CR,LF,'Baud rate is now: ',0 LDA MSPEED MVI C,PRBAUD CALL MEX RET ; ; ; OK300: MVI A,1 ;MSPEED 300 baud value LHLD BD300 ;get 300 baud parameters in HL JMP LOADBD ;go load them ; OK1200: MVI A,5 LHLD BD1200 JMP LOADBD ; OK9600: MVI A,8 LHLD BD9600 JMP LOADBD ; LOADBD: STA INITMOD+1 ;store speed to show transfer time MOV A,L ;get least significant baud rate byte STA LSPSPD+1 ;store in INITMOD MOV A,H ;get most signifcant baud rate byte STA MSPSPD+1 ;store in INITMOD JMP INITMOD ;reset H89 8250 ; ; NEWBAUD: CPI 1 JZ OK300 CPI 5 JZ OK1200 CPI 8 JZ OK9600 RET ; ; ; Table of baud rate parameters ; BD300: DW 0180H BD1200: DW 0060H BD9600: DW 000CH ; BAUDBUF: DB 10,0 DS 10 ; EOSMSG: DB ESC,'J',0,0,0,'$' CLSMSG: DB ESC,'E',0,0,0,'$' ;------------------------------------------------------------------ ; ; NOTE: MUST TERMINATE PRIOR TO 0B00H (with Smartmodem) ; END S