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m7cd-2.asm
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Assembly Source File
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1994-07-13
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13KB
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404 lines
; M7CD-2.ASM MODIFIED TO INIT AND CHANGE BAUD RATES ON THE TUART
; SECOND PORT AT 20H
; 6/24/84 BY CARL AHLERS
; M7CD-1.ASM -- OVERLAY FOR CROMEMCO CDOS 2.54 OR GREATER COPIED
; FROM M7GP-1.ASM DATED 11/11/83 BY FORD BUCKNER
; This is setup for use with a TUART board on PORT 50 driving a
; US ROBOTICS 212a modem.
;
; M7GP-1.ASM -- General purpose overlay file for MDM7xx. 11/11/83
;
;
; 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 places particular emphasis on using an external modem that
; does not match one of the other special overlays. You would use the
; normal CP/M "Configure" program to set the modem to whatever baud rate
; you would normally use (such as 300 or 1200, etc.) Then perhaps just
; make a second .COM file if you need both 300 and 1200 and do not wish
; to write your own initialization or "set baud" routine.
;
; You could look at other overlay files to see how the GOODBYE and/or
; SETUPR areas are handled. You could then adapt one of those, if ap-
; propriate for your equipment in this overlay. Some examples:
;
; "DP" Datapoint 1560 overlay using 8251 I/O and CTC timers for
; setting baud rates
; "H8" Heath H89 overlay for 8250 I/O and programmable baud rates
; "HZ" Zenith 120 overlay for 2661B initialization and baud rates
; "XE" Xerox 820II overlay for Z80-SIO intialization, etc.
;
; 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 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
; 4300 0100
; -IM7GP-1.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4300 0000
; -G0 (return to CP/M)
; A>SAVE 66 MDM7xx.COM (now have a modified .COM file)
;
; = = = = = = = = = = = = = = = = = =
;
; 06/24/84 - Renamed to M7CD-2.asm - Carl Ahlers
; 11/27/83 - Renamed to M7CD-1.asm - Ford Buckner
; 11/11/83 - Renamed to M7GP-1.ASM, no changes - Irv Hoff
; 07/27/83 - Renamed to work with MDM712 - Irv Hoff
; 07/01/83 - Revised to work with MDM711 - Irv Hoff
; 07/01/83 - 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: EQU 050H
MODCTL1: EQU PORT ;MODEM CONTROL PORT
MODDATP: EQU PORT+1 ;MODEM DATA IN PORT
MODDATO: EQU PORT+1 ;MODEM DATA OUT PORT
MODCMDP: EQU PORT+2 ;MODEM COMMAND PORT
MODMASK: EQU PORT+3 ;MODEM INTERRUPT PORT
MODCTL2: EQU PORT+4 ;2ND MODEM CONTROL PORT
BAUDRP: EQU PORT ;BAUD RATE PORT
;
PORT@: EQU 020H
MODCTL1@: EQU PORT@ ;MODEM CONTROL PORT
MODDATP@: EQU PORT@+1 ;MODEM DATA IN PORT
MODDATO@: EQU PORT@+1 ;MODEM DATA OUT PORT
MODCMDP@: EQU PORT@+2 ;MODEM COMMAND PORT
MODMASK@: EQU PORT@+3 ;MODEM INTERRUPT PORT
MODCTL2@: EQU PORT@+4 ;2ND MODEM CONTROL PORT
BAUDRP@: EQU PORT@ ;BAUD RATE PORT
;
MODDCDB: EQU 2 ;CARRIER DETECT BIT
MODDCDA: EQU 2 ;VALUE WHEN ACTIVE
MODRCVB: EQU 40H ;BIT TO TEST FOR RECEIVE
MODRCVR: EQU 40H ;VALUE WHEN READY
MODSNDB: EQU 80H ;BIT TO TEST FOR SEND
MODSNDR: EQU 80H ;VALUE WHEN READY
;
STOPBIT: EQU 80H ;SETS MSB=1 FOR ONE STOP BIT
BAUDRATE: EQU STOPBIT+08H ;1200 BAUD & ONE STOP BIT
RESET: EQU 9 ;RESET TU-ART
LOW$RNG: EQU 0 ;LOW BAUD RATE RANGE
HIGH$RNG: EQU 10H ;HIGH BAUD RATE RANGE
;
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
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 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 '@'-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$MODSNDR: CPI MODSNDR ! RET ;value of send bit when ready 151H
DS 6 ; 156H
;
OUT$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$TIMER DS 3 ; 192H
;
;
; Routine to clear to end of screen. If using CLREOS and CLRSCRN, set
; SCRNTEST to YES at 010AH (above).
;
CLREOS: CALL JMP$ILPRT ; 195H
DB 1BH,'J',0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 1BH,'E',0,0,0 ; 1A1H
RET ; 1A6H
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'Cromemco Version with TU-ART & 3102'
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 TRUE. You can use several lines if
; desired. End with a 0.
;
LOGON: DB 'How are you today?',CR,LF,0
;
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-shar computers.
;
SENDBRK: RET
;.....
;
;
; 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: RET
;.....
;
;
; CROMEMCO TU-ART initialization
;
INITMOD: PUSH B
MVI A,RESET
ADI LOW$RNG ;RESET AND SELECT BAUD RATE RANGE
MOV B,A
OUT MODCMDP@
MVI A,BAUDRATE ;SET BAUD RATE
MOV C,A
OUT BAUDRP@
MVI A,0 ;SET FOR NO INTERUPTS
OUT MODMASK@
;
INITMOD1: MOV A,B ;RESET AND SELECT BAUD RATE RANGE
OUT MODCMDP
;
INITMOD2: MOV A,C ;SET BAUD RATE
OUT BAUDRP
;
INITMOD3: MVI A,0 ;SET FOR NO INTERUPTS
OUT MODMASK
POP B
RET
;.....
;
;
; Setup routine to allow changing modem speed with the SET command.
;
SETUPR:
LXI D,BAUDBUF ;POINT TO NEW INPUT BUFFER
CALL JMP$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 OK300 ;GO IF GOT MATCH
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$INLNCOMP
DB '19200',0
JNC OK19200
CALL JMP$ILPRT ;ALL MATCHES FAILED, TELL OPERATOR
DB '++ Incorrect entry ++',CR,LF,BELL,0
JMP SETUPR ;TRY AGAIN
;
OK300: MVI A,RESET
ADI LOW$RNG
PUSH B
MOV B,A
LDA BD300
MOV C,A
MVI A,1 ;MSPEED VALUE FOR FILE TRANFER TIME
JMP LOADBD
;
OK1200: MVI A,RESET
ADI LOW$RNG
PUSH B
MOV B,A
LDA BD1200
MOV C,A
MVI A,5
JMP LOADBD
;
OK2400: MVI A,RESET
ADI LOW$RNG
PUSH B
MOV B,A
LDA BD2400
MOV C,A
MVI A,6
JMP LOADBD
;
OK4800: MVI A,RESET
ADI LOW$RNG
PUSH B
MOV B,A
LDA BD4800
MOV C,A
MVI A,7
JMP LOADBD
;
OK9600: MVI A,RESET
ADI LOW$RNG
PUSH B
MOV B,A
LDA BD9600
MOV C,A
MVI A,8
JMP LOADBD
;
OK19200: MVI A,RESET
ADI HIGH$RNG
PUSH B
MOV B,A
LDA BD19200
MOV C,A
MVI A,9
;
LOADBD: STA MSPEED ;CHANGE TIME-TO-SEND TO MATCH BAUDRATE
MOV A,M ;GET "MSP" BAUD RATE BYTE
JMP INITMOD1 ;REINITIALIZE TO NEW BAUDRATE, THEN DONE
;.....
;
;
; Table of baud rate values
;
;BD300: DB STOPBIT+4H ;300 baud + STOP BIT
;BD1200: DB STOPBIT+8H ;1200 baud + STOP BIT
;BD2400: DB STOPBIT+10H ;2400 baud + STOP BIT
;BD4800: DB STOPBIT+20H ;4800 baud + STOP BIT
;BD9600: DB STOPBIT+40H ;9600 baud + STOP BIT
;BD19200: DB STOPBIT+10H ;19200 baud + STOP BIT
;
BD300: DB 84H ;300 baud & ONE STOP BIT
BD1200: DB 88H ;1200 baud & ONE STOP BIT
BD2400: DB 90H ;2400 baud & ONE STOP BIT
BD4800: DB 0A0H ;4800 baud & ONE STOP BIT
BD9600: DB 0C0H ;9600 baud & ONE STOP BIT
BD19200: DB 90H ;19200 baud & ONE STOP BIT (USE HIGH RANGE)
;
BAUDBUF: DB 10,0
DS 10
;.....
;
;
; The following routine can be used as an auxiliary menu for notes of
; interest to a particular computer, etc. 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
;