; M7NH-2.ASM -- North Star Horizon - HSIO-4 overlay file for MDM7xx. 01/14/84 ; ; This overlay adapts the MDM7xx program to the North Star Horizon ; HSIO-4 serial I/O board. It uses the 8251 USART. ; ; 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. ; It supports all the baud rates that the HSIO-4 supports even ; when it is not likeley you are running a dial up modem at that ; speed. I.E. 19200 baud. This still could be useful for a direct ; connection between two systems though. ; ; 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 ; -IM712GP.HEX (note the "I" command) ; -R ("R" loads in the .HEX file) ; NEXT PC ; 4300 0000 ; -G0 (return to CP/M) ; A>SAVE 66 MDM712.COM (now have a modified .COM file) ; ; use A>SAVE 68 MDM715.COM for ver 7.15 and ; A>SAVE 69 MDM716.COM for ver 7.16 ; Check the .DOC files for other versions. ; ; = = = = = = = = = = = = = = = = = = ; ; 01/14/83 - Rnamed and revised for mdm716 - Lloyd Miller ; Adapted from MDM712GP.ASM ; 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 ; ; THE FOLLOWING EQU CORRESPONDS TO PORT A OF THE HSIO-4 ; PORT: EQU 010H MODCTL1: EQU PORT+3 ;MODEM CONTROL PORT MODDATP: EQU PORT+2 ;MODEM DATA IN PORT MODDATO: EQU PORT+2 ;MODEM DATA OUT PORT BAUDRP: EQU PORT ;BAUD RATE PORT MODRCVB: EQU 2 ;BIT TO TEST FOR RECEIVE MODRCVR: EQU 2 ;VALUE WHEN READY MODSNDB: EQU 1 ;BIT TO TEST FOR SEND MODSNDR: EQU 1 ;VALUE WHEN READY ; 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 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 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 IS OBSOLETE DS 1 ;ACKNAK: DB NO ;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 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 NO ;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$TIMER DS 3 ; 192H ; ; ; Routine to clear to end of screen. If using CLREOS and CLRSCRN, set ; SCRNTEST to YES at 010AH (above). ; ; The following are set up for a Soroc terminal ; CLREOS: CALL JMP$ILPRT ; 195H DB ESC,'Y',0,0,0 ; 198H RET ; 19DH ; CLRSCRN: CALL JMP$ILPRT ; 19EH DB ESC,'+',0,0,0 ; 1A1H RET ; 1A6H ; SYSVER: CALL JMP$ILPRT ; 1A7H DB 'Version for external modem' DB ' on a North Star Horizon / HSIO-4 port A' 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 ;..... ; ; ; Add your own routine here to send a break tone to reset some time-share ; computers, if desired. ; SENDBRK: MVI A,2FH OUT MODCTL1 MVI B,3 CALL JMP$TIMER ;300MS JMP RESUME ;..... ; ; ; Add your own routine here to put DTR low and/or send a break tone. ; Check other routines such as MDM709DP.ASM which is using this feature. ; GOODBYE: MVI A,18H ; ERR RESET, SEND BREAK, DROP DTR OUT MODCTL1 RET ;..... ; ; ; You can use this area for any special initialization or setup you may ; wish to include. Each must stop with a RET. You can check the other ; available overlays for ideas how to write your own routines if that ; may be of some help. ; INITMOD: MVI A,3 ; stuff contreg in case it is waiting for sync bytes or OUT MODCTL1 ; has just been reset! OUT MODCTL1 MVI A,40H ; INTERNAL RESET TO USART OUT MODCTL1 XTHL ! XTHL ; PAUSE FOR USART TO RESET MVI A,4EH ; MODE ( ASYNC, 1 STOP, DISABLE PARITY,8BIT) OUT MODCTL1 ; INIT SPEED 300 OR 1200 ONLY ( SET MSPEED BYTE ABOVE FOR INITIAL SPEED LDA MSPEED CPI 1 MVI A,6 JZ INIT300 MVI A,4 INIT300: OUT BAUDRP JMP RESUME ; SETUPR: CALL JMP$ILPRT DB 'SELECT SPEED -',CR,LF,LF DB ' A = 110 BAUD',CR,LF DB ' B = 300',CR,LF DB ' C = 600',CR,LF DB ' D = 1200',CR,LF DB ' E = 2400',CR,LF DB ' F = 4800',CR,LF DB ' G = 9600',CR,LF DB ' H = 19200',CR,LF DB '(CR TO RECONECT WITHOUT SPEED CHANGE)-',0 LXI D,BAUDBUF CALL JMP$INBUF LDA BAUDBUF+1 ORA A JZ RESUME LDA BAUDBUF+2 CPI 'H'+1 JNC SETUPR SUI 'A' JC SETUPR ADD A MOV C,A MVI B,0 LXI H,BAUDTAB DAD B MOV A,M STA MSPEED INX H MOV A,M OUT BAUDRP RESUME: MVI A,37H ; RTS, ERR RESET, RCV ENA, DTR, XMIT ENA OUT MODCTL1 RET BAUDBUF: DB 1,0 DS 1 BAUDTAB DB 0,7 DB 1,6 DB 3,5 DB 5,4 DB 6,3 DB 7,2 DB 8,1 DB 9,0 ; ; ; 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