; M7NSP-1.ASM - NSC Starplex overlay file for MDM7xx 08/15/83 ; ; 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 NSC Starplex Development System to the modem pro- ; gram. There are two versions of this program, determined by the selec- ; tion of the equate VAX. This equate set YES sets the program up for a ; single baud rate option of 2400 baud for optimum performance with the ; system connected directly to a port on the DEC VAX 11/780. This option ; requires special attention to setting up the Starplex 8253 baud rate ; clock counter. The NOT VAX option sets up the program to operate as a ; normal Modem 711 program, with selection of either 300 or 1200 baud, ; as originally written. This overlay program is an adaptation of one ; that was written for the Morrow Decision computer, using the 8251 USART. ; ; Edit this file for your preferences then follow the "TO USE:" example ; shown below. ; ; Use the "SET" command to change the baudrate when desired. It starts ; out at 300 baud when the program is first called up. ; ; 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 ; 4x00 0100 ; -IM7NSP-1.HEX (note the "I" command) ; -R ("R" loads in the .HEX file) ; NEXT PC ; 4x00 0000 ; -G0 (return to CP/M) ; A>SAVE 66 MDM7xx.COM (now have a modified .COM file) ; ; ^ ; Value may vary with version of MDM7xx ; ; = = = = = = = = = = = = = = = = = = ; ; 04/11/84 - Renamed to M7NSP-1.ASM - Dennis Recla ; 08/15/83 - Revised for use with MDM711 on the ; NSC Starplex Development System - - Charles Horn ; ; = = = = = = = = = = = = = = = = = = ; BELL: EQU 07H ;bell CR: EQU 0DH ;carriage return ESC: EQU 1BH ;escape LF: EQU 0AH ;linefeed ; YES: EQU 0FFH NO: EQU 0 ; ; PORT: EQU 0EEH ;Starplex data port MODCTL1: EQU PORT+1 ;Modem status port MODDATP: EQU PORT ;Modem data port MODCTL2: EQU PORT+1 ;Modem control port CLKPORT: EQU PORT-10H ;Baud clock rate port MODRCVB: EQU 2 ;bit to test for received data MODRCVR: EQU 2 ;modem receive ready MODSNDB: EQU 1 ;bit to test for ready to send MODSNDR: EQU 1 ;modem send ready bit ; VAX: EQU NO ;YES = for VAX ll/780; 2400 baud only ; ; ORG 100H ; 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 0 ;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 0 ;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 NO ;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 YES ;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 NO ;no=no printer on printer port (modem) 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 phone line 121H LOGCHR: DB 'O'-40H ;^O = 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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H DS 12 ; LOGONPTR: DW LOGON ;for user message. 160H DS 6 ; 162H JMP$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$TIMER: DS 3 ; 192H ; ; Clear sequences -- CLREOS is clear to end of screen, CLRSCRN is clear ; entire screen. Last entry must be 0. Any other 0's act as NOP's. ; The SCRNTST option must be set "YES" for these to work. These are now ; set for the NSC Starplex Development System. ; CLREOS: CALL JMP$ILPRT ; 195H DB 0,0,0,0,0 ; 198H RET ; 19DH ; CLRSCRN: CALL JMP$ILPRT ; 19EH DB 0,0,0,0,0 ; 1A1H RET ; 1A6H ; ; SYSVER: CALL JMP$ILPRT ; 1A7H DB 'Version for NSC Starplex Development System' 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 YES. You can put in several lines if ; desired. End with a 0. ; ; LOGON: DB 'This is a Dummy Logon Message',CR,LF,0 ;..... ; ; ;======================================================================= ; ; This routine allows a 300 ms. break tone to be sent to reset some ; time-share computer. ; SENDBRK: MVI A,1FH ;SEND 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,15H ;SEND BREAK, TURN OFF DTR ; GOODBYE1: OUT MODCTL1 ;SEND TO STATUS PORT MVI B,3 ;WAIT 300 MS. CALL JMP$TIMER MVI A,07H ;NORMAL SEND/RECEIVE WITH DTR OUT MODCTL1 ;SEND TO STATUS PORT RET ;..... ; ; ; USART initialization -- sets the 8251A for 8 bits, 1 stop pulse, ; DTR high, using the Starplex RS-232 port no. 2, to 1200 baud then ; divides by 64 for 300, or by 16 for 1200 baud via "SET" command. Set ; at present to default to 300 baud. The VAX option is fixed at 2400 baud. ; INITMOD: MVI A,1 ;TRANSFER TIME FOR 300 BAUD STA MSPEED DI ;DISABLE INTERRUPTS FOR THIS XRA A MVI B,4 ;INSURE OUTMODE: OUT MODCTL1 ;..OUT DCR B ;....OF JNZ OUTMODE ;......MODE MVI A,40H ;RESET UART AND OUT MODCTL1 ;..SET TO MODE ; INITMOD1: IF VAX ;VAX 11/780 MVI A,4EH ;DIVIDE BY 16 ENDIF ;VAX IF NOT VAX ;NORMAL MODEM711 MVI A,4FH ;DEFAULT TO DIVIDE BY 64 FOR 300 BAUD ENDIF ;NOT VAX OUT MODCTL1 ;SET MODE MVI A,37H ;RTS,RESET ERR FLAGS,DTR,RX&TX ENABLE OUT MODCTL1 ;MODEM STATUS PORT IN MODDATP ;CLEAR IN MODDATP ;..GARBAGE ; MVI A,0B6H ;TIMER 2 MODE OUT CLKPORT+1 IF VAX MVI A,30H ;LS BYTE FOR 2400 BAUD ENDIF ;VAX IF NOT VAX MVI A,60H ;NORMAL STARPLEX DIVISOR ENDIF ;NOT VAX OUT CLKPORT MVI A,00H ;MS BYTE FOR BAUD DIVISOR OUT CLKPORT EI ;ENABLE INTERRUPTS RET ;..... ; SETUPR: IF VAX CALL JMP$ILPRT DB 'Baud Rate is fixed at 2400 for VAX 11/780...',CR,LF,0 JMP INITMOD ;NONE OF THE FOLLOWING FOR VAX ENDIF ;VAX IF NOT VAX LXI D,BAUDBUF ;POINT TO NEW INPUT BUFFER CALL JMP$ILPRT DB 'Input Baud Rate (300, 1200): ',0 CALL JMP$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$ILPRT ;ALL MATCHES FAILED, TELL OPERATOR DB '++ Incorrect entry ++',CR,LF,BELL,0 JMP SETUPR ;TRY AGAIN ; OK300: MVI A,1 ;MSPEED 300 BAUD VALUE MVI B,4FH ;DIVIDE BY 64 FOR 300 BAUD JMP LOADBD ;GO LOAD THEM ; OK1200: MVI A,5 MVI B,4EH ;DIVIDE BY 16 FOR 1200 BAUD ; ; LOADBD: STA INITMOD+1 ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE MOV A,B ;GET BAUDRATE BYTE STA INITMOD1+1 ;STORE IN INITMOD JMP INITMOD ;REINITIALIZE TO NEW BAUDRATE, THEN DONE ENDIF ;NOT VAX ; ; BAUDBUF: DB 10,0 DS 10 ;..... ; ; ; (END OF INITMOD AND SETUP ROUTINES) ;======================================================================= ; ; ; These routines can be used for your equipment, be sure to end with RET ; SPCLMENU: RET ; ;======================================================================= ; ; ; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem) ; 0C00H (without Smartmodem). ; END ;