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m7r4-7.aqm
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M7R4-7.ASM
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Assembly Source File
|
1985-08-18
|
11KB
|
343 lines
; M7R4-7.ASM -- TRS-80 Model IV w/montezuma micro overlay for MDM7xx
; includes options for Hayes Smartmodem and the Anchor Mark XII.
; Will work with a standard external modem with no options selected.
;
; 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.
;
; 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
; defaults to 1200 baud for the Anchor or Smartmodem, 300 baud
; for an external modem.
;
; 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
; -IM7R4-7.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4580 0000
; -G0 (return to CP/M)
; A>SAVE 73 MODEM7.COM (now have a modified .COM file)
;
; OR you can use MLOAD24:
;
; A>MLOAD24 M740.COM=MDM740.COM,M7R4-7.HEX
;
; = = = = = = = = = = = = = = = = = =
; 01/27/85 - Fixed disconnect problems - Ed Richter
; 07/13/84 - Revised for MDM740 and MOD IV - Ed Richter
; 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
; 06/30/85 - Fixed Break tone problem - Richie Dervan
;
; = = = = = = = = = = = = = = = = =
;
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 the RS-232 port.
;
PORT: EQU 0E8H ;MASTER RESET PORT
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)
PMMIMODEM: DB NO ;yes=PMMI S-100 Modem 103H
SMMODEM: EQU YES ;used for this ovlay with Hayes or Anchor
AUTDIAL: DB YES ;yes if HAYES Smartmodem or compatible
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 3 ;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 4 ;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
EXTCHR: DB '^'-40h ;^^ = Send next character 127H
DS 2
IN$MODCTL1: JMP STATSND ;go to "get status" 12AH
DS 7
OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 134H
DS 7
IN$MODDATP: IN MODDATP ! RET ;in modem data port
DS 7
ANI$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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
IN$BAUDRP: RET ! NOP ! NOP ;by-pass this
OUT$BAUDRP: RET ! NOP ! NOP ;don't need this one
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port #1 15AH
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$DISCONT: DS 3 ;disconnect rtn
JMP$GOODBYE: JMP GOODBYE ;go to disconnect 168H
JMP$INITMOD: JMP INITMOD ;go to user written routine 16BH
JMP$NEWBAUD: RET ! NOP ! NOP ;by-pass this 16EH
JMP$NOPARITY: RET ! NOP ! NOP ;(by-pass PMMI routine) 171H
JMP$PARITY: RET ! NOP ! NOP ;(by-pass PMMI routine) 174H
JMP$SETUPR: JMP SETUPR ;initialize USART and modem 177H
JMP$SPCLMENU: JMP SPCLMENU ; 17AH
JMP$SYSVER: JMP SYSVER ;print header msg 17DH
JMP$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$ILPRT ; 195H
DB 19H,0,0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 1EH,19H,0,0,0 ; 1A1H
RET ; 1A6H
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Trade 80 Modem 740 - Richie Dervan',CR,LF
IF SMMODEM
DB 'Version for Hayes or compatible',CR,LF,0
RET
ENDIF
DB 'Version for external modem',CR,LF,0
RET
;
;-----------------------------------------------------------------------
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by 0400H (601 bytes
; available after start of SYSVER) if using the Hayes Smartmodem
; or by address 0C00H (2659 bytes) otherwise.
;
;-----------------------------------------------------------------------
;
; You can put in a message at this location which can be called up with
; CTL-L if TRANLOGON has been set TRUE. You can use several lines if
; desired. End with a 0.
;
LOGON: DB 'RICHIE DERVAN',CR,LF,0
;
; Add your own routine here to send a break tone to reset some time-share
; computers, if desired.
;
SENDBRK: MVI A,0E9H
OUT MODCTL1 ;send break tone
MVI B,3
CALL JMP$TIMER ;delay 300 msec
MVI A,0ECH
OUT MODCTL1 ;reset RS232
RET
;
; Routine to return status of the modem port
;
STATSND: IN MODCTL1 ;in modem contol port
PUSH B ;just in case
ANI 0DFH ;isolate status and clear CD bit
MOV B,A ;save status
IN PORT ;get CD bit
ANI MODDCDB ;isolate CD bit
ORA B ;merge CD with status
POP B ;restore B
RET
;
; Add your own routine here to put DTR low and/or send a break tone.
;
GOODBYE: LDA AUTDIAL ;is it auto dial modem
ORA A
JNZ GOODBY1 ;yes then go to disconnect
MVI A,0EBH ;no - DTR off, send BRK
OUT MODCTL1 ;send cmd
MVI B,3
CALL JMP$TIMER ;delay 300 msec
MVI A,0ECH
OUT MODCTL1 ;reset DTR
RET
;
GOODBY1: MVI A,0EAH ;auto dial disconnect
OUT MODCTL1 ;drop dtr
MVI B,3
CALL JMP$TIMER ;delay 300 msec
MVI A,0ECH ;reset 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,1
OUT PORT ;reset the USART to
MVI A,0ECH ;8,no,1,DTR, and RTS
OUT MODCTL1
LDA MSPEED ;what speed was selected by MSPEED
CPI 1
JZ OK300
CPI 5 ;initialize to selected speed
JZ OK1200
CPI 6
JZ OK2400
CPI 7
JZ OK4800
;
;Routine used to initialize and reset speed and baud rate
;
INIT1: MVI A,0000H
STA MSPEED
INIT2: MVI A,0000H
OUT BAUDRP
RET
;
;sets the modem speed via the SET command.
;
SETUPR: LXI D,BAUDBUF ;point to input buffer
CALL JMP$ILPRT
DB 'INPUT BAUD RATE (300, 1200, 2400, 4800, 9600): ',0
CALL JMP$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$INLNCOMP
DB '9600',0
JNC OK9600
CALL JMP$ILPRT ;bad parameter
DB '+++ Baud rate not supported +++',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
;
OK9600 MVI A,8
LHLD BD9600
;
LOADBD: STA INIT1+1
MOV A,L
STA INIT2+1
JMP INIT1
;
; TABLE OF BAUD RATE PARAMS
;
BD300: DW 0055H
BD1200: DW 0077H
BD2400: DW 00AAH
BD4800: DW 00CCH
BD9600: DW 00EEH
;
BAUDBUF: DB 10,0
DS 10
;----------------------------------------------------------------------
; If using Smartmodem or Anchor this is unavailable without a special
; change.
;
SPCLMENU: RET
;----------------------------------------------------------------------
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem or Anchor)
; 0C00H (without Smartmodem)
;
END