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walnut-creek-CDROM
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MODEMS
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MODEM7
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M7SD-1.AQM
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M7SD-1.ASM
Wrap
Assembly Source File
|
2000-06-30
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10KB
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312 lines
; M7SD-1.ASM -- SD200 SYSTEM COMPUTER overlay file for MDM7xx. 3/30/84
;
; The M7SD.ASM file will patch the MDM7XX communications programs
; for the SD200 computer systems using the SBC-200 computer board.
; Baud rate can be changed with the SET command. This program has
; been patched to be used with the Hayes Smartmodem.
;
; 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 SD200 computer to the modem program.
; Much of the information contained here is not in the main file.
;
; Edit this file for your preferences then follow the "TO USE:" example
; shown below.
;
; Use the MDM7xx "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
; 4A00 0100 (MDM728 and later are 73 sectors)
; -IM7SD-1.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4A00 0000
; -G0 (return to CP/M)
; A>SAVE 73 MDM7SD.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
; 03/30/84 - Renamed to M7SD-1.ASM - Carlos Ulman
; 11/11/83 - Renamed to M7DP-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
; 05/25/83 - 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 - Updated to work with MDM706 - Irv Hoff
; 02/27/83 - Updated to work with MDM705 - Irv Hoff
; 02/17/83 - Modified MDM703CF for Datapoint
; 1560 computers using an exter-
; nal 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
;
;
PORT: EQU 07CH ;SD200 Modem Data Port
MODCTL1: EQU 07DH ;Modem status port
MODCTL2: EQU 07DH ;Modem control port
MODDATP: EQU 07CH ;Modem data port
;
;
ORG 100H
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
SMARTMODEM: DB YES ;yes=HAYES Smartmodem 104H
TONEPULSE: DB 'T' ;T=tone, 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 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 a non-ACK 10DH
;no=resend a record only after NAK
BAKKUPBYTE: 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 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 19H
XOFFTST: DB NO ;yes=chcks 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 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$MODDATP: IN MODDATP ! RET ;in modem data port 13EH
DS 31
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$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$TIMER: DS 3 ; 192H
;
; Clear sequences -- CLREOS is clear to end of screen, CLRSCRN is clear
; entire screen. Last entry must be 0. Any other 0's act as NOP's.
;
CLREOS: CALL JMP$ILPRT ; 195H
DB ESC,79H,0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB ESC,3AH,0,0,0 ; 1A1H
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Version for SD200 modem port 07CH'
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 SD200 computer',CR,LF,0
;
;=======================================================================
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-share computers.
;
SENDBRK: MVI A,1FH
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 ;DELAY ABOUT 300 MS.
CALL JMP$TIMER
MVI A,07H ;NORMAL SEND/RECEIVE WITH DTR
OUT MODCTL1 ;SEND TO STATUS PORT
RET
;
;
; SD200 initialization -- sets CTC timers 20H and 1AH for
; baudrate in/out.
;
INITMOD: MVI A,1
STA MSPEED
MVI A,40H ;DATA FOR INTERNAL RESET MODE
OUT 7DH ;USART INTL RST: PUT IN MODE FORMAT
INITMOD1: MVI A,4FH ;FMAT: 16X, 8 BIT, NO PARITY, 1 STP BIT
; 64X:4FH
; 5XH - ODD PARITY
; 7XH - EVEN PARITY
OUT 7DH ;OUTPUT TO MODE
MVI A,37H ;COM: )RTS, )DTR, RST ERR FLGS, EN R&T
OUT 7DH ;OUTPUT COMMAND
MVI A,45H ;CTC COUNTER MODE: LOAD TIME CONSTANT
OUT 78H ;OUTPUT TO CTC CHANNEL 0
INITMOD2: MVI A,68H ;1200 BAUD DATA CONSTANT
;300 BAUD: SET FORMAT TO 64X
OUT 78H ;OUTPUT TIME CONSTANT TO CHANNEL 0
IN 7CH ;CLEAR RX READY STATUS BIT
RET
;.....
;
;
SETUPR: LXI D,BAUDBUF ;POINT TO NEW INPUT BUFFER
CALL JMP$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$INLNCOMP
;DB '450',0
;JNC OK450
CALL JMP$INLNCOMP
DB '1200',0
JNC OK1200
;CALL JMP$INLNCOMP
;DB '9600',0
;JNC OK9600
CALL JMP$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
LHLD BD300 ;GET 300 BAUD PARAMETERS IN 'HL'
JMP LOADBD ;GO LOAD THEM
;
OK450: MVI A,2
LHLD BD450
JMP LOADBD
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
OK9600: MVI A,8
LHLD BD9600
;
LOADBD: STA INITMOD+1 ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE
MOV A,L ;GET BAUDRATE BYTE
STA INITMOD1+1 ;STORE IN INITMOD
MOV A,H
STA INITMOD2+1
JMP INITMOD ;REINITIALIZE TO NEW BAUDRATE, THEN DONE
;
;
; TABLE OF BAUDRATE PARAMETERS
;
BD300: DW 00684FH ;9600/300 CONVERTED TO HEX VALUE
BD450: DW 0015H ;9600/450 CONVERTED TO HEX VALUE
BD1200: DW 00684EH ;9600/1200 CONVERTED TO HEX VALUE
BD9600: DW 0001H ;9600/9600 CONVERTED TO HEX VALUE
;
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
; If using the Hayes Smartmodem this is unavailable without a special
; change.
;
SPCLMENU: RET
;
;=======================================================================
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0BC0H (without Smartmodem)
;
END
;
=============
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0BC0H (without S