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m7r3-1.asm
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Assembly Source File
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1994-07-13
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12KB
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392 lines
; M7R3-1.ASM -- TRS-80 Model III w/Omikron Mapper overlay for MDM7xx
; includes options for Lynx autodial modem and standard RS-232 board
; (should also work with Model 4 and CP/M 2.2)
; 01/15/84
;
; 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 TRS-80 (Zero ORG CP/M) computer to the modem pro-
; gram. Much of the information contained here is not in the MDM7xx.ASM
; file. Set the Lynx options switch to NO to run with the RS-232 board.
;
; Edit this file for your preferences then follow the "TO USE:" example
; shown below.
;
; With the Lynx, the "SET" command will force the modem to go
; on-line, but cannot change the fixed baud rate of 300. With RS-232,
; 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
; 4580 0100
; -IM7R3-1.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4580 0000
; -G0 (return to CP/M)
; A>SAVE 69 MODEM7.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 01/15/84 - Revised for Model 3 and Lynx modem - Gary Phillips
; 11/11/83 - Renamed to M7R1-1.ASM, no changes - Irv Hoff
; 08/27/83 - Revised to work with MDM712 - Irv Hoff
; 07/25/83 - Adapted for TRS-80 (zero ORG CP/M) - Phil Becker
; 06/22/83 - 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
;
;PORT should be set to the base port address for either the Lynx or RS-232
PORT: EQU 0E8H
MODCTL1: EQU PORT+2 ;MODEM CONTROL PORT
MODDATP: EQU PORT+3 ;MODEM DATA IN PORT
MODDCDB: EQU 20H ;CARRIER DETECT BIT
BAUDRP: EQU PORT+1 ;BAUD RATE PORT
MODCTL2: EQU PORT+2 ;2ND MODEM CONTROL PORT
MODRCVB: EQU 80H ;BIT TO TEST FOR RECEIVE
MODRCVR: EQU 80H ;VALUE WHEN READY
MODSNDB: EQU 40H ;BIT TO TEST FOR SEND
MODSNDR: EQU 40H ;VALUE WHEN READY
;
ORG 100H
;
;
; Change the clock speed to suit your system
;
DS 3 ;(for "JMP START" instruction)
LYNX: EQU YES ;yes if Lynx in use
PMMIMODEM: DB LYNX ;yes=PMMI S-100 Modem 103H
SMARTMODEM: DB NO ;yes=HAYES Smartmodem, no=non-PMMI 104H
TOUCHPULSE: DB 'P' ;T=touch, P=pulse (Smartmodem-only) 105H
CLOCK: DB 21 ;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 4 ;number of DIR columns shown 10AH
SETUPTST: DB YES ;yes=user-added Setup routine 10BH
SCRNTEST: DB YES ;Cursor control routine 10CH
DS 1 ;reserved (old ACKNAK flag) 10DH
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=allow toggling of printer on/off 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 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 'K'-40H ;^K = 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
; note that ESC is SHIFT-BREAK under Omikron CP/M
EXTCHR: DB ESC ;ESC = Send next character 127H
;
;
; a value of 55 gives a pulse rate of about 20/sec.
; a higher value will slow the dialing down for older
; phone systems.
PULSERATE: DB 55 ;pulse rate for dialing
CHGBAUD: DB 'B'-40H ;will force Lynx on-line
;from terminal mode
IN$MODCTL1: IN MODCTL1 ;in modem control port 12AH
PUSH B
ANI 0DFH
MOV B,A ;save status
JMP CTLPT2 ;continue
DS 1
;
OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 134H
;
;
; CONTINUE STATUS READ
;
CTLPT2: IN PORT ;READ CD PORT
ANI MODDCDB ;ISOLATE CD
ORA B ;MERGE STATUS
POP B
RET
;
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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
IF LYNX
IN$BAUDRP: JMP DTIMER ;simulate PMMI timer
OUT$BAUDRP: RET ! NOP ! NOP ;don't need this one
OUT$MODCTL1: JMP DIALHOOK ;dial port
ENDIF
IF NOT LYNX
DS 6
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #1 15AH
ENDIF
OUT$MODCTL2: RET ! NOP ! NOP ;don't need this one 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
JMP$DIAL: DS 3 ;autodial rtn jump 162H
JMP$DISCONNT: JMP GOODBYE ;disconnect rtn
JMP$GOODBYE: JMP GOODBYE ; 168H
JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH
JMP$NEWBAUD: JMP SETUPR ;force Lynx on-line 16EH
JMP$NOPARITY: RET ! NOP ! NOP ;(by-pass PMMI routine) 171H
JMP$PARITY: RET ! NOP ! NOP ;(by-pass PMMI routine) 174H
JMP$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$TIMER: DS 3 ; 192H
;
;
; Routine to clear to end of screen. If using CLREOS and CLRSCRN, set
; SCRNTEST to YES at 010AH (above).
;
CLREOS: CALL JMP$ILPRT ; 195H
DB 1FH,0,0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 1CH,1FH,0,0,0 ; 1A1H
RET ; 1A6H
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'TRS-80 Model III W/Omikron Mapper',CR,LF
IF LYNX
DB 'Lynx autodial modem',CR,LF
ENDIF
DB 0 ;end msg
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-L if TRANLOGON has been set TRUE. You can use several lines if
; desired. End with a 0.
;
LOGON: DB 'This is a TRS-80 using CP/M',CR,LF,0
;.....
;
;
; Add your own routine here to send a break tone to reset some time-share
; computers, if desired.
;
SENDBRK: MVI A,0E3H ;send break
JMP GBYE1
;
; 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.
;
IF LYNX
GOODBYE:
XRA A ;disconnect phone line
OUT BAUDRP
RET
ENDIF
IF NOT LYNX
GOODBYE: MVI A,0EBH ;DTR off, send BRK
ENDIF
GBYE1: OUT MODCTL1 ;SEND CMD
MVI B,3
CALL JMP$TIMER ;DELAY 300 MS
MVI A,0ECH ;NORMAL DTR ON
OUT MODCTL1
RET
;.....
;
;
; You can use this area for any special initialization or setup you may
; wish to include. Each must stop with a RET. You can check the other
; available overlays for ideas how to write your own routines if that
; may be of some help.
;
INITMOD: MVI A,1
OUT PORT ;RESET RS232
MVI A,0ECH ;8/N/1 DTR & RTS ON
OUT MODCTL1
;
INITM1: MVI A,1 ;SET FILE XFER TIME
STA MSPEED
;
IF NOT LYNX
INITM2: MVI A,55H ;INIT TO 300 BAUD
OUT BAUDRP
ENDIF
RET
;
;.....
;
; SETS THE MODEM SPEED VIA THE SET COMMAND.
;
IF NOT LYNX
SETUPR: LXI D,BAUDBUF ;POINT TO INPUT BUFFER
CALL JMP$ILPRT
DB 'INPUT BAUD RATE (300, 1200, 2400, 4800): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;TEST INPUT PARAM
DB '300',0
JNC OK300
CALL JMP$INLNCOMP
DB '1200',0
JNC OK1200
CALL JMP$INLNCOMP
DB '2400',0
JNC OK2400
CALL JMP$INLNCOMP
DB '4800',0
JNC OK4800
CALL JMP$ILPRT ;BAD PARAM
DB '++ INCORRECT ENTRY ++',CR,LF,0
JMP SETUPR ;TRY AGAIN
;
OK300: MVI A,1
LHLD BD300
JMP LOADBD
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
OK2400: MVI A,6
LHLD BD2400
JMP LOADBD
;
OK4800: MVI A,7
LHLD BD4800
;
LOADBD: STA INITM1+1 ;CHANGE MSPEED PARAM
MOV A,L ;GET BRG BYTE
STA INITM2+1 ;SET IT IN
JMP INITM1 ;REINIT BAUD RATE AND RET
;.....
;
;
; TABLE OF BAUD RATE PARAMS
;
BD300: DW 0055H
BD1200: DW 0077H
BD2400: DW 00AAH
BD4800: DW 00CCH
;
BAUDBUF: DB 10,0
DS 10
ENDIF
;.....
IF LYNX
SETUPR: MVI A,02H ;code to go on-line
OUT BAUDRP
RET
;
DIALHOOK: ;flip dial hook
ORA A ;if A=0 put on hook
JZ DIALH2
MVI A,02H ;else take off hook
DIALH2: OUT BAUDRP
RET
;
DTIMER: ;simulate PMMI timer function
DB 0D9H ;Z-80 EXX instruction
LDA PULSERATE ;msec between flips
MOV B,A ;put in counter
DTIMER0:
MVI C,126 ;delay for 1 msec @ 2MHz
DTIMER1:
DCR C
JNZ DTIMER1
DCR B
JNZ DTIMER0
LDA DCNT ;check last value passed
ANI 80H ;was bit 7 set?
JNZ DTIMER2
ORI 80H ;zero last time, set this
JMP DTIMER3
DTIMER2:
XRA A
DTIMER3:
MOV B,A ;save value
IN PORT ;check carrier detect value
ANI MODDCDB
JZ DTIMER4
MVI A,04H ;set PMMI carrier detect flag
DTIMER4:
ORA B ;add timer bit value
DB 0D9H ;EXX to restore regs
STA DCNT
RET ;return with flags
DCNT DB 0
ENDIF
;
; If using Smartmodem or Lynx this is unavailable without a special
; change.
;
SPCLMENU: RET
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem or Lynx)
; 0C00H (without Smartmodem)
;.....
;
END