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modem7
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m7im-2.asm
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Assembly Source File
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1994-07-13
|
11KB
|
334 lines
; M7IM-2.ASM -- IMS (862 I/O)overlay file for MDM7xx. 12/20/83
;
; 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 modem port on the IMS 5000 with 862 I/O 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 "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
; 4400 0100
; -IM7IM-2.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4400 0000
; -G0 (return to CP/M)
; A>SAVE 69 MDM7xx.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 01/13/84 - Modified to work with the IMS at port 2D - Steve Noland
; 12/30/83 - First version of this overlay - Steve Noland
; (adapted from M7TV-1.ASM by 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 2DH ;IMS data port
;
BAUDRP: EQU 29H ;CTC port for baud rate
MODCTL1: EQU PORT+2 ;Modem control port
MODCTL2: EQU PORT+2 ;Modem control port
MODDATP: EQU PORT ;Modem data port
MODDCDB: EQU 4 ;carrier detect bit
MODDCDA: EQU 0 ;value when active
MODRCVB: EQU 1 ;bit to test for receive ready
MODRCVR: EQU 1 ;value when ready
MODSNDB: EQU 4 ;bit to test for send ready
MODSNDR: 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 '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 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 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 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 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 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
;
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$MODRCVR: CPI MODRCVR ! RET ;value of rec. bit when ready 14BH
ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 14EH
CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 6 ; 154H
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #2 15AH
OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem control port #1 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6
JMP$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 ;ESC y - clear to end of screen 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB ESC,2AH,0,0,0 ;ESC * clear CRT, home cursor 11AH
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Version for IMS, modem port 2DH'
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 'Greetings from an IMS user',CR,LF,0
;
;=======================================================================
;
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-share computers.
;
SENDBRK: MVI A,5
OUT MODCTL1
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 MODCTL1 ;SEND TO THE STATUS PORT
MVI A,068H ;TURN OFF DTR, SEND BREAK
;
GOODBYE1: OUT MODCTL1
MVI B,3 ;WAIT 300 MS.
CALL JMP$TIMER
MVI A,5
OUT MODCTL1
MVI A,0E8H ;RESTORE TO NORMAL, 8 BITS, DTR ON, ETC.
OUT MODCTL1
RET
;.....
;
;
; IMS baud rate change. Sets CTC at port 29H for baudrate
; in/out.
;
;
INITMOD: MVI A,0 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,18H ;RESET THE Z8SIO CHIP
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,4 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,44H ;16X, 1-STOP, NO PARITY
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,3 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,0C1H ;ENABLE RECEIVE SECTION
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,5 ;SELECT REG.
OUT MODCTL1 ;SEND TO THE STATUS PORT
MVI A,0EAH ;DTR, RTS, 8-BITS, ENABLE SEND SECTION
OUT MODCTL1 ;SEND TO THE STATUS PORT
;
INITMOD1: MVI A,1 ;DEFAULT TRANSFER TIME TO 300 BAUD
STA MSPEED
;
INITMOD2: MVI A,05H
OUT BAUDRP
MVI A,34H ;DEFAULT TO 300 BAUD
OUT BAUDRP
RET
;.....
;
;
SETUPR: LXI D,BAUDBUF ;POINT TO NEW INPUT BUFFER
CALL JMP$ILPRT
DB 'Input Baud Rate (300, 450, 600, 1200, 9600): ',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 '600',0
JNC OK600
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
;
OK600: MVI A,3
LHLD BD600
JMP LOADBD
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
OK9600: MVI A,8
LHLD BD9600
;
LOADBD: STA INITMOD1+1 ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE
MOV A,H ;GET DIVISOR CONTROL BYTE
STA INITMOD2+1 ;STORE IN INITMOD
MOV A,L ;GET DIVISOR BYTE
STA INITMOD2+5 ;STORE INN INITMOD
JMP INITMOD1 ;REINITIALIZE TO NEW BAUDRATE, THEN DONE
;
;
; TABLE OF BAUDRATE PARAMETERS
;
BD300: DW 0534H ;15600/300 CONVERTED TO HEX VALUE
BD450: DW 0522H ;15600/450 CONVERTED TO HEX VALUE
BD600: DW 051AH ;15600/600 CONVERTED TO HEX VALUE
BD1200: DW 050DH ;15600/1200 CONVERTED TO HEX VALUE
BD9600: DW 4508H ;76800/9600 CONVERTED TO HEX VALUE
BD19200: DW 4504H ;76800/19200
;
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
; address change.
;
SPCLMENU: RET
;
;-----------------------------------------------------------------------
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;
END
;