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walnut-creek-CDROM
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MODEMS
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MODEM7
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M7BT-1.AQM
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M7BT-1.ASM
Wrap
Assembly Source File
|
2000-06-30
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11KB
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367 lines
; M7BT-1.ASM -- Beehive "TOPPER" overlay file for MDM7xx. 11/20/85
;
;
; This overlay adapts the MDM7xx program to the Beehive TOPPER
; computer, using the Z80 DART and Z80 CTC.
;
; 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 places particular emphasis on using the Beehive TOPPER
; computer with the Z80 DART main serial port and the Z80 CTC baud rate
; generator. Note that in the TOPPER the Z80 CTC controls the RX speed
; and the TX speed from different CTC port addresses. The allows the
; TOPPER to operate the RX and TX at different baud rates, in this
; overlay both will be SET at the same baud rate.
;
; Edit this file for your preferences then follow the "TO USE:" example
; shown below.
;
; TO USE: First edit this file filling in answers for your own
; equipment. Then assemble with ASM.COM, LASM.COM, or
; equivalent assembler. Then use MLOAD to overlay the
; results of this program to the original .COM file:
;
; MLOAD MODEM.COM=MDM7xx.COM,M7BT-1.HEX
; ^ ^
; | |
; Name you want for program Name of the MODEM source file.
; MDM740, MODM700, etc
;
; = = = = = = = = = = = = = = = = = =
; History:
;
; 11/20/85 - Original version from Lillypond Softwares - Dennis Recla
; Garland, Texas (214) 270-1834
;
; = = = = = = = = = = = = = = = = = =
;
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: EQU 9AH
MODCTL1 EQU PORT ;DART Modem Control Port
MODDATP: EQU PORT-2 ;DART Data Port
MODRCVB: EQU 1 ;Bit to test for receive
MODRCVR: EQU 1 ;Value when ready
MODSNDB: EQU 4 ;Bit to test for send
MODSNDR: EQU 4 ;Value when ready
CTC1: EQU 90H ;CTC addr RX speed
CTC2: EQU 91H ;CTC addr TX speed
;
ORG 100H
;
;
; Change the clock speed if needed, to match your system
;
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 5 ;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 any non-ACK 10DH
;no=resend a record after a valid-NAK
BAKUPBYTE: DB YES ;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=printer available on printer port 119H
XOFFTST: DB YES ;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 '@'-40H ;^@ = 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 ; 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$MODRCVR: CPI MODRCVR ! RET ;value of rcv. bit when ready 14BH
ANI$MODSNDB: ANI MODSNDB ! RET ;bit to test for send ready 14EH
CPI$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 12 ; 156H
;
;
LOGONPTR: DW LOGON ;for user message. 160H
DS 6 ; 162H
JMP$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$TIMER DS 3 ; 192H
;
;
; Routine to clear to end of screen. If using CLREOS and CLRSCRN, set
; SCRNTEST to YES at 010AH (above).
;
CLREOS: CALL JMP$ILPRT ; 195H
DB ESC,'J',0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB ESC,'E',0,0,0 ; 1A1H
RET ; 1A6H
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Version for Beehive Topper Computer',CR,LF
DB ' From ',ESC,'d','C','Lillypond Softwares '
DB ESC,'d','@','11/20/85',CR,LF
DB ' Initial baud rate set for 1200',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 TRUE. You can use several lines if
; desired. End with a 0.
;
LOGON: DB 'This is a Beehive Topper Computer',CR,LF,0
;.....
;
;
; Routine to send a 300 msec. break tone to reset some time-share
; computers.
;
SENDBRK: MVI A,5 ;
OUT PORT
MVI A,0FAH ; Send BREAK tone from DART
JMP GOODBYE1
;.....
;
;
; Routine to put DTR low for 300 msec. to disconnect from Modem.
;
GOODBYE: MVI A,05H ;Write register 5 of DART
OUT PORT
MVI A,68H ;Drop DTR and RTS
;
GOODBYE1: OUT PORT
MVI B,3 ;Wait for 300 Msec.
CALL JMP$TIMER ;Turn on the timer.
MVI A,5 ;Write register 5 again
OUT PORT
MVI A,0EAH ;Put things back to normal.
OUT PORT
RET
;.....
;
;
; The following is used to initialize the TOPPER Z80 DART.
; MAIN Port is used,Baud rate is initially set to 1200.
;
INITMOD: DI ;no interupts during setup
;
MVI A,5 ;default transfer speed to 1200 baud
STA MSPEED ;
;
MVI A,01H ;Write register 1 of DART
OUT PORT ;Control Port
MVI A,00H ;Turn off all the interupts from DART
OUT PORT ; Topper is all interupt driven
;
MVI A,03H ;write register 3 of DART
OUT PORT ;
MVI A,0C1H ;rcv 8 bits/char, rcv enable
OUT PORT ; (1100 0001)
;
MVI A,04H ;write register 4 of DART
OUT PORT ;contol port
MVI A,44H ;x16, 1 stop bit, no parity
OUT PORT ; (0100 0100)
;
MVI A,05H ;write register 5 of DART
OUT PORT ;
MVI A,0EAH ;DTR,8 bits/char, tx enable, rts enable
OUT PORT ; (1110 1010)
;
MVI A,47H ;counter mode,contol word time constant follows
CALL CTCSET
MVI A,40H ;
CALL CTCSET
;
EI ;System interupts back on
;
RET
;
;.....
;
; Come here to set up the various Baud rates you require.
;
;
SETUPR: LXI D,BAUDBUF ;point to input buffer for INLNCOMP
CALL JMP$ILPRT ;
DB 'Input Baud Rate (300, 1200, 2400, 4800, 9600, 19200): ',0
CALL JMP$INBUF ;
LXI D,BAUDBUF+2 ;
CALL JMP$INLNCOMP ;compare BAUDBUF+2 with characters below
DB '300',0 ;
JNC B300 ;jump if good match
CALL JMP$INLNCOMP
DB '1200',0 ;
JNC B1200 ;
CALL JMP$INLNCOMP ;
DB '2400',0
JNC B2400
CALL JMP$INLNCOMP
DB '4800',0
JNC B4800
CALL JMP$INLNCOMP
DB '9600',0 ;
JNC B9600 ;
CALL JMP$INLNCOMP
DB '19200',0
JNC B19200
CALL JMP$ILPRT ;no matches, tell operator
DB LF,'++ Incorrect entry ++',CR,LF,LF,BELL,0
JMP SETUPR ;try it again
;
;
B300: MVI A,1 ;MSPEED 300 baud value
STA MSPEED
CALL DART1 ;set up DART
MVI A,40H ;300 Baud divisor
CALL CTCSET
RET
;
B1200: MVI A,5 ;MSPEED 1200 baud value
STA MSPEED
CALL DART ;set up DART
MVI A,40H
CALL CTCSET
RET
;
B2400: MVI A,6 ;MSPEED 2400 baud value
STA MSPEED
CALL DART ;set up DART
MVI A,20H
CALL CTCSET
RET
;
B4800: MVI A,7 ;MSPEED 4800 baud value
STA MSPEED
CALL DART ;set up DART
MVI A,10H
CALL CTCSET
RET
;
B9600: MVI A,8 ;MSPEED 9600 baud value
STA MSPEED
CALL DART ;set up DART
MVI A,08H
CALL CTCSET
RET
;
B19200: MVI A,9 ;MSPEED 19200 baud value
STA MSPEED
CALL DART
MVI A,04H ;write register 4
CALL CTCSET
RET
;
DART: MVI A,04H ;write register 4 DART
OUT PORT ;control port
MVI A,44H ;x16, 1 stop bit, no parity
JMP DART2 ;
;
DART1: MVI A,04H ;write register 4 DART
OUT PORT ;control port
MVI A,64H ;x64
DART2: OUT PORT ;
MVI A,47H ;prescale x16, time constant follows
; control word
CALL CTCSET
RET
;
CTCSET: OUT CTC1 ;set the RX speed
;
OUT CTC2 ;set the TX speed
RET
BAUDBUF: DB 10,0
DS 10
;
; If using the Hayes Smartmodem this is unavailable without a special
; change.
;
SPCLMENU: RET
;
;
; NOTE: MUST TERMINATE PRIOR TO 0400H (with Smartmodem)
; 0C00H (without Smartmodem)
;.....
;
END
;