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M7KP-2.AQM
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M7KP-2.ASM
Wrap
Assembly Source File
|
2000-06-30
|
18KB
|
466 lines
; M7KP-2.ASM -- Kaypro II overlay file for MDM722. 2/18/84
;
; This overlay was to written to handle a specific problem, to
; communicate with certain time sharing systems. It should not be
; considered a replacement for M7KP-1.ASM. It has been written not to
; exceed 896 bytes, a constraint documented in M7KP-1.ASM. Because of
; this, some code was taken out, (SET baudrate other than 300 or 1200).
;
; 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 Kaypro II computer to the modem program. Much of
; the information contained here is not in the MDM722.ASM file.
;
; Edit this file for your preferences then follow the "TO USE:", example
; shown below.
;
; Use the "SET" command to change the baudrate, word length, number of
; stop bits, and parity when desired. It starts out at 300 baud, 8 bit
; word length 1 stop bit, and no parity when the program is first invoked.
;
; TO USE: First edit this file filling in answers for your own
; equipment. Then assemble with ASM.COM or equivalent
; assembler. Use DDT to overlay the results of this
; program to the original .COM file:
;
; A>DDT MDM724.COM
; DDT VERS 2.2
; NEXT PC
; 4900 0100
; -IM7KP-2.HEX (note the "I" command)
; -R ("R" loads in the .HEX file)
; NEXT PC
; 4900 0000
; -G0 (return to CP/M)
; A>SAVE 72 MDM.COM (now have a modified .COM file
; saved in MDM.COM)
; = = = = = = = = = = = = = = = = = = = = = =
;
; 02/18/84 - Changed SET routine to change baudrate, word length,
; M7KP-2 number of stop bits, and parity. - Bill Duerr
;
; 02/17/83 - Modified MDM703CF for Kaypro II
; M7KP-1 computers with external modems. - 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 04H ;Kaypro II serial output port
MODCTL1: EQU PORT+2 ;Modem control port
MODDATP: EQU PORT ;Modem data port
MODCTL2: EQU PORT+2 ;Modem control port
;
MODRCVB:EQU 01H ;Your bit to test for receive .... ...1
MODRCVR:EQU 01H ;Your value when receive ready .... ...1
; ;Int pending .... ..1.
MODSNDB:EQU 04H ;Your bit to test for send .... .1..
MODSNDR:EQU 04H ;Your value when send ready .... .1..
;DCT: EQU 80H ;data carier detect .... 1...
; ;sync hunt ...1 ....
; ;Clear to Send ..1. ....
; ;Tx underrun .1.. ....
; ;Break/Abort 1... ....
;
; The following are used in setting up the Z80 SIO.
;
; ;all sent .... ...1
; ;parity error ...1 ....
; ;overrun error ..10 ....
; ;framing error .1.. ....
; ;end of frame (SDLC) 1... ....
;WRREG0
; ;write to register .... .xxx
; ;reset flags ..xx x...
RSTERR: EQU 30H ;reset parity and overrun flags ..11 0...
RSTINS: EQU 18H ;reset SIO - register 0 ..01 1...
WRREG1: EQU 0 ;no interrupts - register 1
; ;ext int enable .... ...1
; ;tx int enable .... ..1.
; ;rx int disable ...0 0...
; ;rx int on first character ...0 1...
; ;int on all rx char/parity eff ...1 0...
; ;int on all rx char ...1 1...
; ;wait/ready on r/t ..1. ....
; ;wait/ready function .1.. ....
; ;wait/ready enable 1... ....
;
; ;register 3 equates
WRREG3: EQU 0C1H ;8 Rx bits, Rx enable
RENABLE EQU 1 ;Rx enable - .... ...1
; ;sync character load inhibit - .... ..1.
; ;address serch mode (SDLC) - .... .1..
; ;Rx CRC enabel - .... 1...
; ;Enter hunt phase ...1 ....
; ;Auto enables ..1. ....
MSKWD: EQU 0C0H ;word length mask - xx.. ....
; ;receive five bit work - 00.. ....
RSEVEN: EQU 040H ;receive seven bit word - 01.. ....
; ;receive six bit word - 10.. ....
REIGHT: EQU 0C0H ;receive eight bit word - 11.. ....
;
; ;register 4 equates
WRREG4: EQU 44H ;16X baud rate, 1 stop bit, no parity
MSKPA: EQU 03H ;mask for parity bits - .... ..xx
NONE: EQU 00H ;no parity - .... ..00
ODD: EQU 01H ;odd parity - .... ..01
EVEN: EQU 03H ;even parity - .... ..11
MSKST: EQU 0CH ;stop bit mask - .... xx..
; ;sync modes enable - .... 00..
ONE: EQU 04H ;one stop bit - .... 01..
; ;1.5 STOP BITS - .... 10..
TWO: EQU 0CH ;two stop bits - .... 11..
; ;sync modes - ..xx ....
;CLK01: EQU 00H ;1X clock mode - 00.. ....
CLK16: EQU 40H ;16X clock mode - 01.. ....
;CLK32: EQU 80H ;32X clock mode - 10.. ....
;CLK64: EQU c0H ;64X clock mode - 11.. ....
; ;register 5 equates
WRREG5: EQU 0EAH ;8 Tx bits, Tx enable, RTS, DTR
;TXCRC EQU 001H ;Tx CRC enable .... ...1
;RTS EQU 002H ;Request to send .... ..1.
;SLDC EQU 004H ;SDLC/CRC-16 .... .1..
TENABLE:EQU 008H ;Tx enable .... 1...
;BREAK EQU 010H ;Send break ...1 ....
; ;Transmit five bit word - .00. ....
TSEVEN: EQU 020H ;Transmit seven bit word - .01. ....
; ;Transmit six bit word - .10. ....
TEIGHT: EQU 060H ;Transmit eight bit word - .11. ....
;DTR EQU 080H ;Data terminal ready 1... ....
DTRON: EQU 08AH ;Tx enable, RTS, DTR - 1... 1.1.
DTROFF: EQU 000H ;DTR off, RTS off - 0... ..0.
;
ORG 100H
;
; Change the clock speed as needed for 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 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 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 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 NO ;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=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 NO ;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 a 300 ms. break tone 120H
NOCXNNCT: 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
PULSERATE: DS 1 ; 128H
CHGBAUD DS 1 ; 129H
;
IN$MODCTL1: MVI A,10H ;channel 0, reset interrupts. 12AH
OUT MODCTL1
IN MODCTL1 ;get the status bits
RET
DB 0,0,0
;
OUT$MODDATP: OUT MODDATP ! RET ;out modem data port 134H
DB 0,0,0,0,0,0,0
IN$MODDATP: IN MODDATP ! RET ;in modem data port 13EH
DB 0,0,0,0,0,0,0
ANI$MODRCVB: ANI MODRCVB ! RET ;bit to test for receive ready 148H
CPI$MODRCVR: CPI MODRCVR ! RET ;value of receive bit when rdy 14BH
ANI$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: DS 3 ;IN baudrate port 154H
OUT$BAUDRP: DS 3 ;OUT baudrate port 157H
OUT$MODCTL1: OUT MODCTL1 ! RET ;out modem control port 15AH
OUT$MODCTL2: OUT MODCTL2 ! RET ;out modem status port 15DH
;
LOGONPTR: DW LOGON ;for user message. 160H
JMP$DAIL: DS 3 ;Use routine in main program 162H
JMP$DISCONNT: DS 3 ;Use routine in main program 165H
JMP$GOODBYE: JMP GOODBYE ;Routine in this overlay 168H
JMP$INITMOD: JMP INITMOD ;Initialization in this overlay 16BH
JMP$NEWBAUD: RET ! NOP ! NOP ;Bypass PMMI routine 16EH
JMP$NOPARITY: RET ! NOP ! NOP ;Bypass PMMI routine 171H
JMP$PARITY: RET ! NOP ! NOP ;Bypass PMMI routine 174H
JMP$SETUPR: JMP SETUPR ;Set command in this overlay 177H
JMP$SPCLMENU: RET ! NOP ! NOP ;Bypass special menu routine 17AH
JMP$SYSVER: JMP SYSVER ;Version message in this overlay17DH
JMP$BREAK: JMP SENDBRK ;Break routine in this overlay 180H
;
;
; Do not change the following six lines, the routine are in main program.
;
JMP$ILPRT: DS 3 ;Inline print routine 183H
JMP$INBUF DS 3 ;Input buffer routine 186H
JMP$INLNCOMP: DS 3 ;Inline compare routine 189H
JMP$INMODEM DS 3 ; 18CH
JMP$NXTSCRN: DS 3 ; 18FH
JMP$TIMER: DS 3 ;Timer routine 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$ILPRT ; 195H
DB 017H,0,0,0,0 ; 198H
RET ; 19DH
;
CLRSCRN: CALL JMP$ILPRT ; 19EH
DB 01AH,0,0,0,0 ; 1A1H
RET ; 1A6H
;
;
SYSVER: CALL JMP$ILPRT ; 1A7H
DB 'M7KP-2, Version for Kaypro',0 ; 1AAH
RET
;
; NOTE: You can change the SYSVER message to be longer or shorter. The
; end of your last routine should terminate by 0380H (390 bytes
; available after start of SYSVER) if using the Hayes Smartmodem
; or by address 0B80H (2521 bytes) otherwise.
;
; You can put in a message at this location which can be called up with
; CTL-L if TRANLOGON has been set YES. You can put in several lines if
; desired. End with a 0.
;
LOGON: DB 'LOGON',CR,LF,0
;
;
; This routine allows a 300 ms. break tone to be sent to reset some
; time-share computers.
;
SENDBRK: MVI A,5 ;select register 5
OUT MODCTL1
MVI A,0F8H ;send a break tone
JMP GOODBYE1
;
; This routine sends a 300 ms. break tone and sets DTR low for the same
; length of time to disconnect some modems such as the Bell 212A, etc.
;
GOODBYE: MVI A,5 ;select register 5
OUT MODCTL1 ;send to the status port
MVI A,DTROFF ;turn off dtr
;
GOODBYE1: OUT MODCTL1
MVI B,3 ;delay 300 ms.
CALL JMP$TIMER
MVI A,5 ;select register 5
OUT MODCTL1
LDA REG5+1 ;has been set to word length, etc.
OUT MODCTL1
RET
;
; Kaypro II initialization -- resets the SIO, sets the interrupt
; mode, the receive and transmit mode.
; Sets the baud rate to port 00.
;
INITMOD:MVI A,0 ;select register 0
OUT MODCTL1
MVI A,RSTINS ;reset SIO - 18h
OUT MODCTL1
;
MVI A,1 ;select register 1
OUT MODCTL1
MVI A,WRREG1 ;no interrupts
OUT MODCTL1
;
MVI A,3 ;select register 3 - receive
OUT MODCTL1
REG3: MVI A,WRREG3 ;8 Rx bits, Rx enable
OUT MODCTL1
;
MVI A,4 ;select register 4
OUT MODCTL1
MVI A,CLK16 ;16X baud rate
PARIT: ORI NONE ;type of parity
STPLN: ORI ONE ;number of stop bits
OUT MODCTL1
;
MVI A,5 ;select register 5 - transmit
OUT MODCTL1
REG5: MVI A,WRREG5 ;8 Tx bits, Tx enable, no RTS, no DTR
OUT MODCTL1
;
SETBD: MVI A,05H ;set baudrate to 300 bps
OUT 00
RET
;
; The following routine changes the baud rate, word length, stop bits
; and parity on the Z80 SIO from the command level. Note the routine
; MUST modify the parameters used by the INITMOD routine.
;
SETUPR: PUSH H
AGAIN: LXI D,BAUDBUF ;point to input buffer for JMP$INLNCOMP
CALL JMP$ILPRT
DB 1AH,'Baud Rate (300, 1200): ',0
CALL JMP$INBUF
LXI H,BAUDTB
BAUDLP: MOV A,M ;first character to check
ORA A ;is it null
JZ NOTOK ;no matches found
STA BAUDCP ;store in compare area
INX H ;point to next character
MOV A,M ;second character to check or null
STA BAUDCP+1 ;store in comparea area
INX H ;point to MSPEED constant
LXI D,BAUDBUF+2 ;compare baudbuf and baudcp
CALL JMP$INLNCOMP ;was valid baud specified
BAUDCP: DB 0,0,0 ;baudrate from table gets stored here
JNC OK ;match, go save it
INX H ;skip MSPEED
INX H ;and CTC constant
JMP BAUDLP ;and check next entry
NOTOK: CALL WRONG ;tell messed up
JNC AGAIN2 ;null line entered bypass baud change
JMP AGAIN ;try again
;
OK: MOV A,M ;get MSPEED
STA MSPEED ;change time-to-send to match baudrate
INX H ;point to CTC constant
MOV A,M ;and get it
STA SETBD+1 ;store in INITMOD routine
;
AGAIN2: LXI D,BAUDBUF ;point to input buffer
CALL JMP$ILPRT
DB 'Word Length (7, 8): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;was eight bits requested
DB '8',0
MVI A,REIGHT+RENABLE;receive eight bits - C1h
MVI B,TEIGHT+DTRON ;transmit eight bits - EAh
JNC OK2
CALL JMP$INLNCOMP ;was seven bits requested
DB '7',0
MVI A,RSEVEN+RENABLE;receive seven bits - 41h
MVI B,TSEVEN+DTRON ;transmit seven bits - AAh
JNC OK2
CALL WRONG
JNC AGAIN3 ;bypass word length change
JMP AGAIN2
;
OK2: STA REG3+1 ;store in MVI instruction
MOV A,B ;get transmit word length
STA REG5+1 ;store in MVI instruction
;
AGAIN3: LXI D,BAUDBUF ;point to input buffer for JMP$INLNCOMP
CALL JMP$ILPRT
DB 'Stop Bits (1, 2): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;was 1 stop bit requested
DB '1',0
MVI A,ONE ;1 stop bit - 04h
JNC OK3
CALL JMP$INLNCOMP ;was 2 stop bits requested
DB '2',0
MVI A,TWO ;2 stop bits - 0Ch
JNC OK3
CALL WRONG
JNC AGAIN4 ;bypass stop bit mod
JMP AGAIN3 ;go ask again
;
OK3: STA STPLN+1 ;save stop bits in MVI
;
AGAIN4: LXI D,BAUDBUF ;point to input buffer for JMP$INLNCOMP
CALL JMP$ILPRT
DB 'Parity (None, Even, Odd): ',0
CALL JMP$INBUF
LXI D,BAUDBUF+2
CALL JMP$INLNCOMP ;was no parity requested
DB 'N',0 ;just check first character
MVI A,NONE ;no parity - 00h
JNC OK4 ;go if got match
CALL JMP$INLNCOMP ;was even parity requested
DB 'E',0
MVI A,EVEN ;even parity - 03h
JNC OK4
CALL JMP$INLNCOMP ;was odd parity requested
DB 'O',0
MVI A,ODD ;odd parity - 01h
JNC OK4
CALL WRONG ;no matches
JNC GOSET ;bypass parity changes
JMP AGAIN4 ;try again
;
OK4: STA PARIT+1 ;save in MVI
;
; now go modify the init routine to initialize the Kaypro to the values
; requested.
;
GOSET: POP H ;restore HL register
JMP INITMOD ;reset Z80 SIO (and return)
;
WRONG: CALL JMP$INLNCOMP ;was null string entered
DB ' ',0
RNC ;all is ok
CALL JMP$ILPRT ;all matches failed - tell operator
DB ' Wrong!',CR,LF,BELL,0
STC ;Set carry flag
RET
;
; Due to space constraints some baud rates have been commented out
;
BAUDTB: EQU $ ;Valid baud rates
; ;BAUD MSPEED CTC
;BD110: DB '11',0,2 ; 110 0 02
BD300: DB '3',0,1,5 ; 300 1 05
;BD600: DB '6',0,3,6 ; 600 3 06
BD1200: DB '12',5,7 ;1200 5 07
;BD2400:DB '24',6,10 ;2400 6 0A
;BD4800:DB '48',7,12 ;4800 7 0C
;BD9600:DB '96',8,14 ;9600 8 0E
;BD192: DB '19',8,15 ;19.2 9 0F
DB 0
;
BAUDBUF:
DB 10,0
DS 10
;
;---------------------------------------------------------------------
;
;
; NOTE: MUST TERMINATE PRIOR TO 0380H (with Smartmodem)
; 0B80H (without Smartmodem)
;
;---------------------------------------------------------------------
END