; MXO-TV11.ASM -- TeleVideo TS-802 overlay file for MEX10. 07/18/84 ; REV EQU 11 ; overlay revision level ; ; ; 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 overlay uses the modem port (20H) on the TeleVideo TS-802 ; ; = = = = = = = = = = = = = = = = = = ; 07/18/84 - Changed labels to conform to MXO-PM10 model ; changed baud rate to default to mspeed ; rewrote and enhanced set baud routines - Bob Puckett ; 05/24/84 - MEXified overlay - Biff Bueffel ; 11/11/83 - Renamed to M7TV-1.ASM, no changes - Irv Hoff ; 07/27/83 - Renamed to work with MDM711 - Irv Hoff ; 07/01/83 - Revised to work with MDM711 - Irv Hoff ; 06/22/83 - Revised to work with MDM711 - Irv Hoff ; 05/27/83 - Updated to work with MDM709 - Irv Hoff ; 05/15/83 - Revised to work with MDM708 - Irv Hoff ; 04/27/83 - Revised to work with TV802 - Irv Hoff ; 02/17/83 - Modified MDM703CF for Datapoint ; 1560 computers using an external ; modem - 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 ; ; 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 ;MEX/BDOS print-string function call ; PORT: EQU 20H ;TeleVideo ST-802 data port ; BAUDRP: EQU 08H ;CTC port for baud rate CPORT: EQU PORT+2 ;Modem control port MODCTL2: EQU PORT+2 ;Modem control port DPORT: EQU PORT ;Modem data port MODDCDB: EQU 4 ;carrier detect bit MODDCDA: EQU 0 ;value when active DAV: EQU 1 ;bit to test for receive ready DAV: EQU 1 ;value when ready TBMT: EQU 4 ;bit to test for send ready TBMT: EQU 4 ;value when ready ; ; ORG 100H ; 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 'P' ;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 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 NO ;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 NO ;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=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 'L'-40H ;^L = Disconnect from the phone line 121H LOGCHR: DB 'N'-40H ;^N = 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 ; INCTL1: IN CPORT ! RET ;in modem control port 12AH DS 7 OTDATA: OUT DPORT ! RET ;out modem data port 134H DS 7 INPORT: IN DPORT ! RET ;in modem data port 13EH DS 7 ; MASKR: ANI DAV ! RET ;bit to test for receive ready 148H TESTR: CPI DAV ! RET ;value of rec. bit when ready 14BH MASKS: ANI TBMT ! RET ;bit to test for send ready 14EH TESTS: CPI TBMT ! RET ;value of send bit when ready 151H DS 6 ; 154H OTCTL1: OUT CPORT ! RET ;out modem control port #2 15AH ; DS 5 ;Not used by MEX 160H DS 6 GOODBV: JMP GOODBYE ; 168H INMODV: JMP NITMOD ;go to user written routine 16BH NEWBDV: JMP NEWBAUD ;Change baudrate 16EH RET ! NOP ! NOP ;(by-passes PMMI routine) 171H RET ! NOP ! NOP ;(by-passes PMMI routine) 174H SETUPV: JMP SETUPR ; 177H DS 3 ;Not used by MEX 17AH VERSNV: JMP SYSVER ; 17DH BREAKV: JMP SENDBRK ; 180H ; ; ; Do not change the following six lines ; ILPRTV: DS 3 ; 183H INBUFV: DS 3 ; 186H ILCMPV: DS 3 ; 189H INMDMV: DS 3 ; 18CH DS 3 ; 18FH TIMERV: DS 3 ; 192H ; ; ; Clear sequences -- CLREOS is clear to end of screen, CLRSCRN is clear ; entire screen. ; CLREOSº LXI D,EOSMSG MVI C,PRINT CALL MEX RET ; CLRSCRN: LXI D,CLSMSG MVI C,PRINT CALL MEX RET ; ; SYSVER: MVI C,ILP ; 1A7H CALL MEX DB 'TeleVideo TS-802 Overlay V. ' DB REV/10 + '0' DB '.' DB REV MOD 10 + '0' DB CR,LF,0 RET ; ; This routine allows a 300 ms. break tone to be sent to reset some ; time-share computers. ; SENDBRK: MVI A,5 OUT CPORT 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 CPORT ;SEND TO THE STATUS PORT MVI A,068H ;TURN OFF DTR, SEND BREAK ; GOODBYE1: OUT CPORT MVI B,3 ;WAIT 300 MS. MVI C,TIMER CALL MEX MVI A,5 OUT CPORT MVI A,0E8H ;RESTORE TO NORMAL, 8 BITS, DTR ON, ETC. OUT CPORT RET ;..... ; ; ; TeleVideo TS-802 baud rate change. Sets CTC at port 08H for baudrate ; in/out. ; ; NITMOD: MVI A,0 ;SELECT REG. OUT CPORT ;SEND TO THE STATUS PORT MVI A,18H ;RESET THE Z8SIO CHIP OUT CPORT ;SEND TO THE STATUS PORT MVI A,4 ;SELECT REG. OUT CPORT ;SEND TO THE STATUS PORT MVI A,44H ;16X, 1-STOP, NO PARITY OUT CPORT ;SEND TO THE STATUS PORT MVI A,3 ;SELECT REG. OUT CPORT ;SEND TO THE STATUS PORT MVI A,0C1H ;ENABLE RECEIVE SECTION OUT CPORT ;SEND TO THE STATUS PORT MVI A,5 ;SELECT REG. OUT CPORT ;SEND TO THE STATUS PORT MVI A,0EAH ;DTR, RTS, 8-BITS, ENABLE SEND SECTION OUT CPORT ;SEND TO THE STATUS PORT ; LDA MSPEED ;DEFAULT TRANSFER TIME MSPEED CALL NEWBAUD ;GO CHANGE BAUD RATE RET ; ;....... ; ; 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 DB 'Only 300, 450, 600, 1200, 2400, 4800, 9600 or 19200' DB ' allowed on SET command' DB CR,LF,'Example: SET 1200',CR,LF,0 RET ; CMDTBL: DB '30','0'+80H DW OK300 DB '45','0'+80H DW OK450 DB '60','0'+80H DW OK600 DB '120','0'+80H DW OK1200 DB '240','0'+80H DW OK2400 DB '480','0'+80H DW OK4800 DB '960','0'+80H DW OK9600 DB '1920','0'+80H DW OK19K DB 0 ; OK300: MVI A,1 JMP NEWBAUD OK450: MVI A,2 JMP NEWBAUD OK600: MVI A,3 JMP NEWBAUD OK1200: MVI A,5 JMP NEWBAUD OK2400: MVI A,6 JMP NEWBAUD OK4800: MVI A,7 JMP NEWBAUD OK9600: MVI A,8 JMP NEWBAUD OK19K: MVI A,9 JMP NEWBAUD ; 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 ; ; ; ; ; NEWBAUD: STA MSPEED ; SAVE MSPEED LXI H,BAUDTB MOV E,A MVI D,0 ; DE HAS OFFSET DAD D ; HL POINTS TO CORRECT BAUD RATE MOV C,M ; GET DIVISOR IN C LOADBD: MVI A,047H ;SET UP FOR BAUD CHANGE OUT BAUDRP MOV A,C ;GET DIVISOR OUT BAUDRP RET ; ; ; TABLE OF BAUDRATE PARAMETERS ; NOTE: 110 AND 710 BAUD ARE UNIMPLEMENTED ; BAUDTB: BD110: DB 0 ; -0 BD300: DB 0080H ; -1 38400/300 CONVERTED TO HEX VALUE BD450: DB 0055H ; -2 38400/450 CONVERTED TO HEX VALUE BD600: DB 0040H ; -3 38400/600 CONVERTED TO HEX VALUE BD710: DB 0 ; -4 BD1200: DB 0020H ; -5 38400/1200 CONVERTED TO HEX VALUE BD2400: DB 0010H ; -6 BD4800: DB 0008H ; -7 BD9600: DB 0004H ; -8 38400/9600 CONVERTED TO HEX VALUE BD19K: DB 0002H ; -9 38400/19200 ; BAUDBUF: DB 10,0 DS 10 ; EOSMSG: DB ESC,'y',0,0,0,'$' CLSMSG: DB ESC,'*',0,0,0,'$' ; (END OF INITMOD AND SETUP ROUTINES) ; NOTE: MUST TERMINATE PRIOR TO 0B00H (with Smartmodem) ; 0D00H (without Smartmodem) ; END ;