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M7RSCPP.AQM
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M7RSCPP.ASM
Wrap
Assembly Source File
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2000-06-30
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12KB
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369 lines
; M7RCP-1.ASM -- Tandy TRS-80 Mod 4 under Radio Shack's CP/M Plus.
; Overlay file for MDM724 -- 02/05/84
;
; This file is based on the M7R4-1 overlay for the Montezuma Micro
; CP/M 2.2. It is heavily based on the Tandy Radio Shack Model I with
; Omicron CP/M 'Mapper' originally by Phil Becker and is credited as
; such.
;
; 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 Tandy Model 4 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 MDM724 "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. Assemble with MAC or equivalent
; assembler. Then use SID to overlay the the results
; of this program to the original .COM file:
;
; A>SAVE
; A>SID MDM724.COM
; CP/M 3 SID - Version 3.0
; NEXT MSZE PC END
; 4900 4900 0100 A9FF
; #R M7RCP-1.HEX
; NEXT MSZE PC END
; 0334 4900 0100 A9FF
; #G0
;
; CP/M 3 SAVE - Version 3.0
; Enter file (type RETURN to exit): MDM724.COM
; Delete MDM724.COM? Y
; Beginning hex address 100
; Ending hex address 4900
;
; A>
;
; = = = = = = = = = = = = = = = = = =
;
; 02/02/84 - Modified to work with CP/M+ - Richard Press, M.D.
; 11/26/83 - Modified for the TRS80 Mod 4 - Steven J. Davidson, M.D.
; & Richard Press, M.D.
; 08/27/83 - Renamed 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
; 05/25/83 - 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 - 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
;
;
PORT: EQU 0EAH ;TRS80 Mod 4 Modem Status Port
MODCTL1: EQU PORT ;Modem status port
MODCTL2: EQU PORT ;Modem control port
MODDATP: EQU PORT+1 ;Modem data port
MODDCDB: EQU 20H ;carrier detect bit
MODDCDA: EQU 20H ;value when active
BAUDRP: EQU PORT-1 ;Baud rate port
MODRCVB: EQU 80H ;Recv. Ready Mask bit
MODRCVR: EQU 80H ; -value when ready
MODSNDB: EQU 40H ;xmit. ready mask bit
MODSNDR: EQU 40H ; -value when ready
;
ORG 100H
;
DS 3 ;(for "JMP START" instruction)
;
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
SMARTMODEM: DB NO ;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 3 ;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 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 YES ;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 'B'-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 'T'-40H ;^R = Close input text buffer 124H
TRANCHR: DB 'Y'-40H ;^T = Transmit file to remote 125H
SAVECHR: DB 'R'-40H ;^Y = Open input text buffer 126H
EXTCHR: DB 'K'-40H ;^K = Send next character 127H
;
;
DS 2 ; 128H
;
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 0E8H ;read CD port
ANI 20H ;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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 6 ; 156H
;
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #2 15AH
OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem control port #1 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$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 01BH,04AH,0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 01BH,045H,0,0,0 ; 1A1H
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB '*** Version for Tandy TRS80 Mod 4 ***'
DB CR,LF
DB '*** with Radio Shack CP/M Plus ***'
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 'Hello, This is a TRS80 Mod 4 computer',CR,LF,0
;
;=======================================================================
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-share computers.
;
SENDBRK:
MVI A,0E8H ; 8 bit words, 1 stop bit, no parity,
JMP GOODBYE1 ; DTR & RTS disabled, *BREAK bit SET*
;
;.....
;
;
; 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,0EBH ;send break, turn off DTR
;
GOODBYE1:
;
OUT MODCTL1 ;send to status port
MVI B,3 ;delay about 300 ms.
CALL JMP$TIMER
MVI A,0ECH ;normal send/receive with DTR
OUT MODCTL1 ;send to status port
RET
;
;
; TRS80 Mod 4 initialization -- sets CTC timer 0 for baudrate in/out.
;
; TRS80 Mod 4 specific equates for initialization.
;
CTCCMD: EQU 0E8H ;Master Reset, UART cntrl. register
CTC0: EQU 0E9H ;BR19411 Timer control Timer 0 (port A)
IB300 EQU 55H ;Default 300 baud
;
INITMOD: MVI A,1 ;Reset UART and enable it
OUT CTCCMD
;
MVI A,0ECH ;8 bits, no parity, 1 stop bit, enable DTR
OUT MODCTL1 ; and RTS
;
LSBD: MVI A,IB300
OUT CTC0
;
INITMOD1: MVI A,1 ;default transfer time to 300 baud
STA MSPEED
RET
;
;.....
;
;
SETUPR: LXI D,BAUDBUF ;point to new input buffer
CALL JMP$ILPRT
DB 'Input Baud Rate (300, 600, 1200, '
DB '4800, 9600, 19200): ',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$INLNCOMP
DB '600',0
JNC OK600
CALL JMP$INLNCOMP
DB '1200',0
JNC OK1200
CALL JMP$INLNCOMP
DB '4800',0
JNC OK4800
CALL JMP$INLNCOMP
DB '9600',0
JNC OK9600
CALL JMP$INLNCOMP
DB '19200',0
JNC OK19200
CALL JMP$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
;
OK600: MVI A,3
LHLD BD600
JMP LOADBD
;
OK1200: MVI A,5
LHLD BD1200
JMP LOADBD
;
OK4800: MVI A,7
LHLD BD4800
JMP LOADBD
;
OK9600: MVI A,8
LHLD BD9600
JMP LOADBD
;
OK19200: MVI A,9
LHLD BD19200 ;fall thru.....
;
LOADBD: STA INITMOD1+1 ;change time-to-send to match baudrate
MOV A,L ;get baudrate byte
STA LSBD+1 ;store in INITMOD
JMP LSBD ;reinitialize to new baudrate, then done
RET
;
;
; TABLE OF BAUDRATE PARAMETERS
;
BD300: DB 55H ; 300 baud
BD600: DB 66H ; 600 baud
BD1200: DB 77H ; 1200 baud
BD4800: DB 0CCH ; 4800 baud
BD9600: DB 0EEH ; 9600 baud
BD19200:
;
DB 0FFH ;19200 baud
;
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
;