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- ; 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