IF NOT lasm
.printx * CPXSY2.ASM *
ENDIF ;NOT lasm
; KERMIT - (Celtic for "FREE")
;
; This is the CP/M-80 implementation of the Columbia University
; KERMIT file transfer protocol.
;
; Version 4.0
;
; Copyright June 1981,1982,1983,1984,1985
; Columbia University
;
; Originally written by Bill Catchings of the Columbia University Center for
; Computing Activities, 612 W. 115th St., New York, NY 10025.
;
; Contributions by Frank da Cruz, Daphne Tzoar, Bernie Eiben,
; Bruce Tanner, Nick Bush, Greg Small, Kimmo Laaksonen, Jeff Damens, and many
; others.
;
; This file contains the system-dependent code and data for KERMIT.
; It will be probably be broken into independent files to generate
; overlays for the various systems, one or more overlay possible
; from each file. For now, we will leave it in one piece.
;
; revision history:
;
;
; This is the system-dependent command to change the baud rate.
; DE contains the two-byte value from the baud rate table; this
; value is also stored in 'speed'.
sysspd:
IF px8 ; [29]
push d
call rsclose ; baud rate can only be set on opening rs232
pop d
mov a, e
sta px8blk+4 ; set param block
call rsopen ; to set rate
ret
ENDIF ; px8 [29]
; Set the speed for the Osborne I
IF osbrn1
mvi a,osbin1 ;Reset the ACIA
call osstst ;Write the control port
osbs1: inr c ;Waiting loop
jnz osbs1
mov a,e ; get the specified speed
jmp osstst ;Write the control reg.
ENDIF;osbrn1
;[hh] set the speed for a lobo MAX-80
IF lobo
mov a,e ;[hh] get the parsed value
setbd: sta baudrt ;[hh] and send it to the baud rate port
ret ;[hh]
ENDIF;lobo
; Set the speed for bigboard I or the delphi or the CPT-85xx
; or Cromemco (TU-ART)
IF delphi OR cpt85xx OR cmemco OR mmate ;[22] [29]
mov a,e ; get the parsed value
out baudrt ; Tell the baud rate generator.
ret
ENDIF;delphi OR cpt85xx OR cmemco OR mmate [22] [29]
;[22] Set the speed for Acorn BBC
IF bbc
mov l,e
mvi a,7 ;Set receive baud rate
call osbyte ;*FX7,?e
mov l,e
mvi a,8 ;Set transmit baud rate
call osbyte ;*FX8,?e
ret
ENDIF;[22] bbc
;[22] Set speed for RM 380Z
IF rm380z
mvi a,4 ;device type (SI/O4) in A
rst 6 ; EMT
db 29h ; SETLST
ret
ENDIF;[22] rm380z
; Set the speed for MicroMikko. DE is baud rate multiplier
IF mikko
di
lxi h,txclk
mov m,d ;LSB first (swapped in memory)
mov m,e ;MSB last
lxi h,rxclk
mov m,d
mov m,e
mvi b,0 ;"modifier" for 1 stop bit
mvi a,2 ;Test MSB of speed >2 (110 bps or less)
cmp e
jp miksp1
mvi b,00001000B ;"modifier" for 2 stop bits
miksp1: mvi a,4 ;Select SIO Reg 4
lxi h,sioac
mov m,a
mvi a,sion4 ;Get values
ora b ;Add modifier
mov m,a ;Set value (stop bits)
ei
ret
ENDIF;mikko
; Set the speed for the Decision I
IF mdI
call selmdm ;Let's be absolutely sure, huh?
mvi a,dlab+wls1+wls0+stb ;Set data latch access bit
out lcr ;Out to Line Control Register
lhld speed ;Load baudrate multiplier
xchg
mov a,d ;Get low order byte for baud rate
out dlm ;Out to the MSB divisor port
mov a,e ;...and the high order byte
out dll ;Out to the LSB divisor port
mvi a,wls1+wls0+stb ;Enable Divisor Access Latch
out lcr ;Out to ACE Line Control Register
xra a ;Clear A
out ier ;Set no interrupts
out lsr ;Clear status
in msr ;Clear Modem Status Register
in lsr ;Clear Line Status Register
in rbr ;Clear Receiver Buffers
in rbr
ret
ENDIF ;mdI [Toad Hall]
IF teletek
di
mov a,e ; first speed byte
out baudrt
mov a,d ; second speed byte
out baudrt
ei
ret
ENDIF ;teletek
IF access ;[29]
mov a,e ;Get the parsed time constant
;The following code is derived from the Access initialization code
sta savspd ;Save the time constant
mvi a,14h ;Code for 'monitor' to set channel A baudrate
call monitor
lda savspd ;Get the time constant
call monitor ; and send it to the CRT
ret
savspd: ds 1
monitor: ;Routine to do CRT functions
out 90h ;Output the data to the CRT
mvi a,1 ;Set DRDY true
out 23h
mon1: in 0a0h ;Wait for CACK* true
rlc
jc mon1
in 80h ;Read the input data latch
push psw ;Save the input data
xra a ;Set DRDY false
out 23h
mon2: in 0a0h ;Wait for CACK* false
rlc
jc mon2
pop psw
sta 0ee02h ;Save the input data
ret
ENDIF;access [29]
IF disc ;[29]
; Assuming that parsing of value from speed table puts low order
; byte of time constant in the e register and high byte in d.
mvi a,12 ;Register 12
out mnprts
mov a,e ;Low order byte of time constant
out mnprts
mvi a,13 ;Register 13
out mnprts
mov a,d ;High order byte of time constant
out mnprts
mvi a,14 ;Register 14
out mnprts
mvi a,3 ;Enable baud rate generator
out mnprts
mvi a,11 ;Register 11
out mnprts
mvi a,52h ;no Xtal, tclk=rclk=/trxc out=br gen
out mnprts
ret
ENDIF;disc [29]
; Speed tables
; (Note that speed tables MUST be in alphabetical order for later
; lookup procedures, and must begin with a value showing the total
; number of entries. The speed help tables are just for us poor
; humans.
; db string length,string,divisor (2 identical bytes or 1 word)
; [Toad Hall]
IF delphi OR lobo ;[hh]
spdtbl: db 10h ;16 entries
db 03h,'110$', 02h,02h
db 04h,'1200$', 07h,07h
db 05h,'134.5$', 03h,03h
db 03h,'150$', 04h,04h
db 04h,'1800$', 08h,08h
db 05h,'19200$', 0fh,0fh
db 04h,'2000$', 09h,09h
db 04h,'2400$', 0ah,0ah
db 03h,'300$', 05h,05h
db 04h,'3600$', 0bh,0bh
db 04h,'4800$', 0ch,0ch
db 02h,'50$', 00h,00h
db 03h,'600$', 06h,06h
db 04h,'7200$', 0dh,0dh
db 02h,'75$', 01h,01h
db 04h,'9600$', 0eh,0eh
sphtbl: db cr,lf,' 50 75 110 134.5 150 300 600 1200'
db cr,lf,' 1800 2000 2400 3600 4800 7200 9600 19200$'
ENDIF;delphi OR lobo ;[hh]
IF cpt85xx
spdtbl: db 15 ; 15 entries
db 03,'110$', 03h,03h
db 04,'1200$', 09h,09h
db 05,'134.5$', 04h,04h
db 03,'150$', 05h,05h
db 04,'1800$', 0Ah,0Ah
db 04,'2400$', 0Bh,0Bh
db 03,'300$', 06h,06h
db 04,'3600$', 0Ch,0Ch
db 04,'4800$', 0Dh,0Dh
db 02,'50$', 01h,01h
db 03,'600$', 07h,07h
db 04,'7200$', 0Eh,0Eh
db 02,'75$', 02h,02h
db 03,'900$', 08h,08h
db 04,'9600$', 0Fh,0Fh
sphtbl: db cr,lf,' 50 75 110 134.5 150 300 600 900'
db cr,lf,' 1200 1800 2400 3600 4800 7200 9600$'
ENDIF;cpt85xx
IF bbc ;[22]
spdtbl: db 8 ; 8 entries
db 04,'1200$', 04h,04h
db 03,'150$', 02h,02h
db 05,'19200$', 08h,08h
db 04,'2400$', 05h,05h
db 03,'300$', 03h,03h
db 04,'4800$', 06h,06h
db 02,'75$', 01h,01h
db 04,'9600$', 07h,07h
sphtbl: db cr,lf,' 75 150 300 1200 2400 4800 9600 19200$'
ENDIF;[22] bbc
IF rm380z ;[22]
spdtbl: db 7 ; 7 entries
db 03,'110$', 00h,00h
db 04,'1200$', 03h,03h
db 04,'2400$', 04h,04h
db 03,'300$', 01h,01h
db 04,'4800$', 05h,05h
db 03,'600$', 02h,02h
db 04,'9600$', 06h,06h
sphtbl: db cr,lf,' 110 300 600 1200 2400 4800 9600$'
ENDIF;[22] rm380z
IF px8 ; [29]
spdtbl: db 9 ; 9 entries
db 03,'110$', 02h,02h
db 04,'1200$', 0ah,0ah
db 03,'150$', 04h,04h
db 05,'19200$', 0fh,0fh
db 04,'2400$', 0ch,0ch
db 03,'300$', 06h,06h
db 04,'4800$', 0dh,0dh
db 03,'600$', 08h,08h
db 04,'9600$', 0eh,0eh
sphtbl: db cr, lf
db ' 100 150 300 600 1200 2400 4800 9600 19200$'
ENDIF ; px8 [29]
IF mikko
spdtbl: db 9h ;9 entries
db 03h,'110$'
dw 0369h
db 04h,'1200$'
dw 0050h
db 03h,'150$'
dw 0280h
db 04h,'2400$'
dw 0028h
db 03h,'300$'
dw 0140h
db 04h,'4800$'
dw 0014h
db 03h,'600$'
dw 00A0H
db 02h,'75$'
dw 0500h
db 04h,'9600$'
dw 000ah
sphtbl: db cr,lf,' 75 110 150 300 600 1200 2400 4800 9600$'
ENDIF;mikko
IF osbrn1
spdtbl: db 02h ;2 entries
db 04h,'1200$', OSBI12,OSBI12
db 03h,'300$', OSBI03,OSBI03
sphtbl: db cr,lf,' 300',cr,lf,' 1200$'
ENDIF;osbrn1
IF mdI
spdtbl: db 0dh ; 13 entries
db 03h, '110$'
dw 1047
db 04h, '1200$'
dw 96
db 03h, '150$'
dw 768
db 05h,'19200$'
dw 6
db 04h, '2400$'
dw 48
db 03h, '300$'
dw 384
db 05h,'38400$'
dw 3
db 03h, '450$'
dw 288
db 04h, '4800$'
dw 24
db 05h,'56000$'
dw 2
db 03h, '600$'
dw 192
db 02h, '75$'
dw 1536
db 04h, '9600$'
dw 12
sphtbl: db cr,lf,' 75 110 150 300 450 600 1200'
db cr,lf,' 2400 4800 9600 19200 38400 56000$'
;(Lord knows what you'll be communicating with at 56000 baud, but the
;Multi-I/O board literature says it'll do it, so what the heck....
;might as well throw it in here just to show off...sure hope the
;port don't melt...)
ENDIF ;mdI [Toad Hall]
IF cmemco ;[25]
spdtbl: db 7 ; 7 entries
db 3,'110$', 01H,01H
db 4,'1200$', 88H,88H
db 3,'150$', 82H,82H
db 4,'2400$', 90H,90H
db 3,'300$', 84H,84H
db 4,'4800$', 0A0H,0A0H
db 4,'9600$', 0C0H,0C0H
sphtbl: db cr,lf
db ' 110 150 300 1200 2400 4800 9600$'
ENDIF;cmemco
IF access ;Similar to bbI with different values [29]
spdtbl: db 6h ;6 entries
db 04h,'1200$', 28h,28h
db 04h,'2400$', 14h,14h
db 03h,'300$', 0a0h,0a0h
db 04h,'4800$', 0ah,0ah
db 03h,'600$', 50h,50h
db 04h,'9600$', 5,5
sphtbl: db cr,lf,' 300 600 1200 2400 4800 9600$'
ENDIF;access [29]
IF mmate ;[29]
spdtbl: db 10h ;16 entries
db 03h,'110$', 0e2h,0e2h
db 04h,'1200$', 0e7h,0e7h
db 05h,'134.5$', 0e3h,0e3h
db 03h,'150$', 0e4h,0e4h
db 04h,'1800$', 0e8h,0e8h
db 05h,'19200$', 0efh,0efh
db 04h,'2000$', 0e9h,0e9h
db 04h,'2400$', 0eah,0eah
db 03h,'300$', 0e5h,0e5h
db 04h,'3600$', 0ebh,0ebh
db 04h,'4800$', 0ech,0ech
db 02h,'50$', 0e0h,0e0h
db 03h,'600$', 0e6h,0e6h
db 04h,'7200$', 0edh,0edh
db 02h,'75$', 0e1h,0e1h
db 04h,'9600$', 0eeh,0eeh
sphtbl: db cr,lf,' 50 75 110 134.5 150 300 600 1200'
db cr,lf,' 1800 2000 2400 3600 4800 7200 9600 19200$'
ENDIF;mmate [29]
IF disc ;[29]
; Similar to mikko table but with different time constant values
spdtbl: db 9h ;9 entries
db 03h,'110$'
dw 1134
db 04h,'1200$'
dw 102h
db 03h,'150$'
dw 831
db 04h,'2400$'
dw 50
db 03h,'300$'
dw 415
db 04h,'4800$'
dw 24
db 03h,'600$'
dw 206
db 02h,'75$'
dw 1665
db 04h,'9600$'
dw 11
sphtbl: db cr,lf,' 75 110 150 300 600 1200 2400 4800 9600$'
ENDIF;disc [29]
IF teletek
spdtbl: db 7 ; 7 entries
db 4, '1200$', 47h,40h
db 5,'19200$', 47h,04h
db 4, '2400$', 47h,20h
db 3, '300$', 47h,00h
db 4, '4800$', 47h,10h
db 3, '600$', 47h,80h
db 4, '9600$', 47h,08h
sphtbl: db cr,lf
db ' 300 600 1200 2400 4800 9600 19200$'
ENDIF ;teletk
; The following conditionals were once a huge if not statement. There
; wasn't enough room to add the lobo to the list, so it had to be broken
; into 2, which you can't do with an if not. I redid it as two ifs and
; applied them to those that wouldn't set baud. [Hal Hostetler]
IF robin OR gener OR dmII OR vector OR trs80;[32]
spdtbl equ 0 ; SET BAUD not supported.
sphtbl equ 0
ENDIF;robin OR gener OR dmII OR vector OR trs80
;
IF mmdI OR osi OR cpm3 OR S1008 ; [29]
spdtbl EQU 0 ;[hh] SET BAUD not supported.
sphtbl EQU 0 ;[hh] ran out of room above...
ENDIF;mmdI OR osi OR cpm3 OR S1008 [29]
;
IF hp125 ;[MF]
spdtbl equ 0 ; SET BAUD not supported.
sphtbl equ 0
ENDIF;hp125 [MF]
;
; This is the system-dependent SET PORT command.
; HL contains the argument from the command table.
sysprt:
IF lobo ;[hh]
mov a,l ;[hh] get the data port value and store at
sta outmd3+1 ;[hh] the two places we use...
sta inpmd2+1 ;[hh] MNPORT in the overlay
sta port ;[hh] inform program of the change in ports
inr a ;[hh] status port = data port + 1 in the Lobo
sta outmd1+1 ;[hh] store it at the three places...
sta inpmd1+1 ;[hh] we use MNPRTS...
sta outctl+1 ;[hh] in the overlay
mov a,h ;[hh] now get the baud rate port value
sta getbd+1 ;[hh] store it in the two places we use...
sta setbd+1 ;[hh] BAUDRT in the overlay
sta port+1 ;[hh] don't need to, but keeps it consistant
getbd: lda baudrt ;[hh] get baud rate value from port
sta speed ;[hh] tell STAT. baud rate for each port
;[hh] is independant of the other
ENDIF ;lobo
IF iobyt
mov a,m ;Get the I/O byte
sta prtiob ;Save the desired IO byte for this port
inx h ;Point at next entry
mov a,m ;Get the output function
sta prtfun ;Save it
ENDIF;iobyt
IF iobyt AND robin
inx h ;Point at next entry
mov a,m ;Get the hardware address for the port
sta prtadr ;Store it
ENDIF;iobyt AND robin
;
IF hp125 ;[MF]
push psw
push b
push d
push h
xchg ;Put port connect sequence address in DE
call prtstr ;Connect proper port
pop h
pop d
pop b
pop psw
ENDIF;hp125 [MF]
;
ret
;
; Port tables for Lobo MAX-80
IF lobo ;[hh]
; help text
prhtbl: db cr,lf,'RS-232 port A or B$'
;
; command table
prttbl: db 02H ;[hh] two entries
db 01H,'A$',0E4H,0D0H
db 01H,'B$',0E6H,0D4H
ENDIF ;lobo
;
; Port tables for GENERIC CPM 2.2
IF gener
; help text
prhtbl: db cr,lf,'CRT device'
db cr,lf,'PTR device'
db cr,lf,'TTY device'
db cr,lf,'UC1 device'
db cr,lf,'UR1 device'
db cr,lf,'UR2 device$'
; command table
prttbl: db 06H ;Six devices to choose from
db 03H,'CRT$'
dw crtptb
db 03H,'PTR$'
dw ptrptb
db 03H,'TTY$'
dw ttyptb
db 03H,'UC1$'
dw uc1ptb
db 03H,'UR1$'
dw ur1ptb
db 03H,'UR2$'
dw ur2ptb
; port entry table
; table entries are:
; db iobyte-value, BDOS output function, reserved
crtptb: db crtio,conout,0
ptrptb: db ptrio,punout,0
ttyptb: db ttyio,conout,0
uc1ptb: db uc1io,conout,0
ur1ptb: db ur1io,punout,0
ur2ptb: db ur2io,punout,0
ENDIF;gener
;
; Port tables for DECmate II or MicroMikko or Acorn BBC
;
IF dmII OR mikko OR bbc ;[22]
; help text
prhtbl: db cr,lf,'COMMUNICATIONS port$'
; command table
prttbl: db 01H ;Only one port known at this point
db 0EH,'COMMUNICATIONS$'
dw comptb ;address of info
; port entry table
; table entries are:
; db iobyte-value, BDOS output function, reserved
comptb: db batio,punout,0
ENDIF;[22] dmII OR mikko OR bbc
;
; Port tables for Robin
;
IF robin
; help text
prhtbl: db cr,lf,'COMMUNICATIONS port'
db cr,lf,'GENERAL purpose port'
db cr,lf,'PRINTER port$'
; command table
prttbl: db 03H ;Three entries
db 0EH,'COMMUNICATIONS$'
dw comptb
db 07H,'GENERAL$'
dw gppptb
db 07H,'PRINTER$'
dw prnptb
; port entry table
; table entries are:
; db iobyte-value, BDOS output function, hardware port address
; (control/status)
;
;At present, the hardware port address is only used for sending a break.
comptb: db batio,punout,comtst
gppptb: db gppio,conout,gentst
prnptb: db lptio,conout,prntst
prtadr: db comtst ;space for current hardware port address
ENDIF;robin
IF iobyt
prtfun: db punout ;Function to use for output to comm port
prtiob: db batio ;I/O byte to use for communicating
coniob: db defio ;I/O byte to use for console
ENDIF;iobyt
;
IF hp125 ;[MF]
; Help table
prhtbl: db cr,lf,'Communications port'
db cr,lf,'Printer port$'
; command table
prttbl: db 02H ;2 entries
db 0eH,'COMMUNICATIONS$'
dw mapon1
db 07H,'PRINTER$'
dw mapon2
;Port table entries are the addresses of the escape sequences to connect
;the ports.
;
ENDIF;hp125 [MF]
IF NOT (iobyt OR lobo OR hp125) ;[hh] [MF]
prttbl equ 0 ; SET PORT is not supported
prhtbl equ 0
ENDIF;NOT iobyt OR lobo OR hp125 [MF]
;
; selmdm - select modem port
; selcon - select console port
; selmdm is called before using inpmdm or outmdm;
; selcon is called before using inpcon or outcon.
; For iobyt systems, diddle the I/O byte to select console or comm port;
; For Decision I, switches Multi I/O board to console or modem serial
; port. [Toad Hall]
; For the rest, does nothing.
; preserves bc, de, hl.
selmdm:
IF iobyt
lda prtiob ;Set up for output to go to the comm port
sta iobyte ;Switch byte directly
ENDIF;iobyt
IF mdI
lda group
ori mdmgrp ;Mask modem serial port
out grpsel
ENDIF;mdI [Toad Hall]
ret
selcon:
IF iobyt
lda coniob ;Set up for output to go to the console port
sta iobyte ;Switch directly
ENDIF;iobyt
IF mdI
lda group
ori congrp ;Mask console serial port (1)
out grpsel
ENDIF;mdI [Toad Hall]
ret
; Get character from console, or return zero.
; result is returned in A. destroys bc, de, hl.
;
inpcon:
IF NOT iobyt
mvi c,dconio ;Direct console I/O BDOS call.
mvi e,0FFH ;Input.
call BDOS
ENDIF;NOT iobyt
IF iobyt
call bconst ;Get the status
ora a ;Anything there?
rz ;No, forget it
call bconin ;Yes, get the character
ENDIF;iobyt
ret
;
; Output character in E to the console.
; destroys bc, de, hl
;
outcon:
IF rm380z ;[22]
mov a,e
cpi cr ;cr produces cr + lf
jnz outcn1
mvi e,'N'-100O ;Control-N produces cr only
outcn1: ;continue
ENDIF;[22] rm380z
IF NOT iobyt
mvi c,dconio ;Console output bdos call.
call bdos ;Output the char to the console.
ENDIF;NOT iobyt
IF iobyt
mov c,e ;Character
call bcnout ;to Console
ENDIF;iobyt
ret
;
; outmdm - output a char from E to the modem.
; the parity bit has been set as necessary.
; returns nonskip; bc, de, hl preserved.
outmdm:
IF osi OR lobo ;[hh]
push h
outmd1: lxi h,mnprts ;address of the port status register
outmd2: mov a,m ; get port status in A
ani output ;Loop till ready.
jz outmd2
outmd3: lxi h,mnport ;address of port data register
mov m,e ; write the character
pop h
ret
ENDIF;osi OR lobo
IF osbrn1
call osldst ;Read the status port
ani output ;Loop till ready.
jz outmdm
mov a,e
jmp osstda ;Write to the data port
ENDIF;osbrn1
IF px8 ; [29]
push h
push b
push d
outmd1: call rsoutst ; get the output status
ora a
jz outmd1 ; check if output enabled
pop d
mov c, e ; char in C
push d
call rsput
pop d
pop b
pop h
ret
ENDIF; px8 [29]
IF inout
in mnprts ;Get the output done flag.
ani output ;Is it set?
jz outmdm ;If not, loop until it is.
mov a,e
out mnport ;Output it.
ret
ENDIF;inout
IF iobyt
;**** Note that we enter from outpkt with the I/O byte already set up for
; output to go to the comm port
push h
push b
lda prtfun ;Get the output function
mov c,a ;Into C
call bdos ;And output the character
pop b
pop h
ret
ENDIF;iobyt
IF cpm3 OR hp125 ;[MF]
push h
push b
mvi c,auxout ;Output to the aux output device
call bdos
pop b
pop h
ret
ENDIF;cpm3 OR hp125 [MF]
; org $+100h AND 0FF00h ; get rid of phase error
;
; get character from modem; return zero if none available.
; for IOBYT systems, the modem port has already been selected.
; destroys bc, de, hl.
inpmdm:
IF iobyt
call bconst ;Is Char at COMM-Port?
ora a ;something there?
rz ; return if nothing there
call bconin ; data present. read data.
ENDIF;iobyt
IF cpm3
mvi c,auxist
call bdos ;is char at auxin?
ora a ;something there?
rz ;no
mvi c,auxin
call bdos ;read char from auxin
ENDIF;cpm3
;
IF hp125 ;[MF]
lxi b,70ffh ;SEt subfunction to get RDR (auxin) status
call bdos ;is char at RDR?
ora a ;something there?
rz ;no
mvi c,auxin
call bdos ;read char from RDR
ENDIF;hp125 [MF]
IF osi OR lobo ;[hh]
inpmd1: lda mnprts ;Get the port status into A.
ani input ;See if the input ready bit is on.
rz ;If not then return.
inpmd2: lda mnport ;If so, get the char.
ENDIF;osi OR lobo
IF osbrn1
call osldst ;Read the status port
ani input ;Something there?
rz ;Nope
call osldda ;Read the data port
ENDIF;osbrn1
IF inout
;Note: modem port should already be selected for mdI. [Toad Hall]
in mnprts ;Get the port status into A.
ani input ;See if the input ready bit is on.
rz ;If not then return.
in mnport ;If so, get the char.
ENDIF;inout
IF px8 ; [29]
call rserst ; check error status
ani 64h ; this assumes 'not open' cannot occur
jnz inpmd1 ; error has occurred!
call rsinst ; any chars outstanding?
ora a
rz ; exit if none
call rsget ; get char in A
ret
; return the 'no char outstanding' indication on error
inpmd1: mvi a, 0
ENDIF; px8 [29]
ret ; return with character in A
;
; flsmdm - flush comm line.
; Modem is selected.
; Currently, just gets characters until none are available.
flsmdm: call inpmdm ; Try to get a character
ora a ; Got one?
jnz flsmdm ; If so, try for another
ret ; Receiver is drained. Return.
;
; lptstat - get the printer status. Return a=0ffh if ok, or 0 if not.
lptstat:
IF iobyt ;[33]
call bprtst ;
call bprtst ; get status
ENDIF ;iobyt[33]
IF NOT iobyt ;[33]
xra a ; assume it is ok.. this may not be necessary
ENDIF ;iobyt [33]
ret
;
; outlpt - output character in E to printer
; console is selected.
; preserves de.
outlpt:
push d ; save DE in either case
call prtflt ; go through printer filter [30]
ana a ; if A = 0 do nothing,
jz outlp1 ; [30] if a=0 do nothing
IF NOT iobyt
mvi c,lstout
call bdos ;Char to printer
ENDIF;NOT iobyt
IF iobyt
mov c,e
call blsout
ENDIF;iobyt
outlp1: pop d ; restore saved register pair
ret
;
; Screen manipulation routines
; csrpos - move to row B, column C
;
; csrpos for terminals that use a leadin sequence followed
; by (row + 31.) and (column + 31.)
;
IF NOT (robin OR dmII OR osi OR vector OR termin OR hp125)
;[MF] Terminals code in CPXVDU
csrpos: push b ; save coordinates
lxi d,curldn ; get cursor leadin sequence
call prtstr ; print it
pop h ; restore coordinates
mov a,h ; get row
adi (' '-1) ; space is row one
mov e,a
push h
call outcon ; output row
pop h
mov a,l ; get column
adi (' '-1) ; space is column one
mov e,a
jmp outcon ; output it and return
ENDIF;NOT (robin OR dmII OR osi OR vector OR termin OR hp125)[MF]
;
;
;
; csrpos for ANSI terminals
;
IF robin OR dmII
csrpos: push b ; save coordinates
lxi d,curldn ; get cursor leadin sequence
call prtstr ; print it
pop h ; peek at coordinates
push h ; then save away again
mov l,h ; l = row
mvi h,0 ; hl = row
call nout ; output in decimal
mvi e,';' ; follow with semicolon
call outcon ; print it
pop h ; restore column
mvi h,0 ; hl = column
call nout
mvi e,'H' ; terminate with 'move cursor' command
jmp outcon ; output it and return
ENDIF;robin OR dmII
;
; csrpos for the HP-125 [MF]
;
IF hp125 ;[MF]
csrpos: dcr b ;HP-125 uses zero-based addressing
dcr c ;...
push b ; save coordinates
lxi d,curldn ; get cursor leadin sequence
call prtstr ; print it
pop h ; peek at coordinates
push h ; then save away again
mov l,h ; l = row
mvi h,0 ; hl = row
call nout ; output in decimal
mvi e,'R'+20h ;Say it was a row
call outcon ; print it
pop h ; restore column
mvi h,0 ; hl = column
call nout
mvi e,'C' ; terminate with 'move cursor' command
jmp outcon ; output it and return
ENDIF;hp125 [MF]
;
; csrpos for the Vector General. It's weird.
;
IF vector
csrpos: dcr b ; vector uses zero-based addressing?
dcr c
push b ; save coordinates
mvi e,esc ; print an escape
call outcon
pop d ; peek at coordinates
push d
call outcon ; output column
pop d
mov e,d ; get row
jmp outcon ; output and return
ENDIF;vector
IF osi ; systems without cursor positioning
csrpos: ret ; dummy routine referenced by linkage section
ENDIF;osi
;
; delchr - make delete look like a backspace. Unless delete is a printing
; character, we just need to print a backspace. (we'll output clrspc
; afterwards)
; For Kaypro and Vector General, delete puts a blotch on the screen.
; For Apple and Osborne 1, delete moves but doesn't print.
delchr:
IF vector OR osbrn1 OR lobo
lxi d,delstr
jmp prtstr
ENDIF ;vector OR osbrn1 OR lobo
IF bbc OR rm380z ;[22]
ret
ENDIF;bbc OR rm380z
IF NOT (vector OR osbrn1 OR bbc OR rm380z);[22]
mvi e,bs ;get a backspace
jmp outcon
ENDIF;NOT (vector OR osbrn1 OR bbc OR rm380z [22]
; erase the character at the current cursor position
clrspc: mvi e,' '
call outcon
mvi e,bs ;get a backspace
jmp outcon
; erase the current line
clrlin: lxi d,eralin
jmp prtstr
; erase the whole screen, and go home. preserves b (but not c)
clrtop: lxi d,erascr
jmp prtstr
IF robin
sysver: db 'VT180 Robin$'
ENDIF;robin
IF dmII
sysver: db 'DECmate II CP/M-80$'
ENDIF;dmII
IF delphi ; [7] new system
sysver: db 'Digicomp Delphi 100$'
endif;delphi
IF access
sysver: db 'Actrix CP/M$'
endif;
IF teletek
sysver: db 'Teletek SYSTEMASTER CP/M-80$'
ENDIF ;teletek
IF cpt85xx
sysver: db 'CPT-85xx under CompuPak CP/M$'
ENDIF;cpt85xx
IF mdI
sysver: db 'Morrow Decision I$'
ENDIF;mdI [Toad Hall]
IF mmdI
sysver: db 'MicroDecision I$'
ENDIF;mmdI
IF osi
sysver: db 'Ohio Scientific$'
ENDIF;osi
IF mmate ;[29]
sysver: db 'PMC Micromate using port I/O$'
ENDIF;mmate [29]
IF disc ;[29]
sysver: db 'Discovery using 83U board port B$'
ENDIF ;disc [29]
IF s1008 ;[29]
sysver: db 'U. S. MicroSales using printer port$'
ENDIF ;s1008 [29]
IF cmemco ;[25]
sysver: db 'Cromemco (TU-ART)$'
ENDIF;cmemco
;
IF robin OR dmII
; Note that we cannot support Graphics Mode or the H19 erase-screen command
; (<esc>E), because the sequences are more than three bytes.
defesc EQU '\'-100O ;Still Control-\ (just ran out of room...)
vtval EQU 0 ; we probably don't want VT52 emulation
outlin: db esc,3CH,esc,'[H',esc,'[J',cr,lf,tab,tab,'$'
erascr: db esc,'[H',esc,'[J$' ;Clear screen and go home.
eralin: db cr,esc,'[K$' ;Clear line.
curldn: db esc,'[$' ; Cursor leadin
ttab:
ta: db esc,'[A$' ; Cursor up.
tb: db esc,'[B$' ; Cursor down.
tc: db esc,'[C$' ; Cursor right.
td: db esc,'[D$' ; Cursor left
te: db '$',0,0,0 ; (can't) Clear display
tf: db '$',0,0,0 ; (don't) Enter Graphics Mode
tg: db '$',0,0,0 ; (don't) Exit Graphics mode
th: db esc,'[H$' ; Cursor home.
ti: db esc,'M$',0 ; Reverse linefeed.
tj: db esc,'[J$' ; Clear to end of screen.
tk: db esc,'[K$' ; Clear to end of line.
ENDIF;robin OR dmII
IF mikko
sysver: db 'MikroMikko$'
outlin: db subt,cr,lf,tab,'$'
erascr: db subt,'$' ;Clear screen and go home.
eralin: db cr,1CH,'$' ;Clear line.
curldn: db esc,'=$' ;cursor leadin
ttab: ;Table start location.
ta: db 0BH,'$',0,0 ;Cursor up.
tb: db 0AH,'$',0,0 ;Cursor down.
tc: db 0CH,'$',0,0 ;Cursor right.
td: db bs,'$',0,0 ;Cursor left
te: db subt,'$',0,0 ;Clear display
tf: db '$',0,0,0 ;(can't) Enter Graphics Mode
tg: db '$',0,0,0 ;(can't) Exit Graphics mode
th: db 1EH,'$',0,0 ;Cursor home.
ti: db '$',0,0,0 ;(can't) Reverse linefeed.
tj: db 1cH,'$',0,0 ;Clear to end of screen.
tk: db 1cH,'$',0,0 ;Clear to end of line.
ENDIF;mikko
;
IF bbc ;[22]
sysver: db 'BBC (Z80)$'
outlin: db 0CH,esc,'=',21H,30H,'$'
erascr: db 0CH,'$' ;Clear screen and go home.
eralin: db cr,esc,'@$' ;Clear line.
curldn: db esc,'=$' ;cursor leadin
ttab: ;Table start location.
ta: db 0BH,'$',0,0 ;Cursor up.
tb: db 0AH,'$',0,0 ;Cursor down.
tc: db tab,'$',0,0 ;Cursor right.
td: db bs,'$',0,0 ;Cursor left
te: db 0CH,'$',0,0 ;Clear display
tf: db '$',0,0,0 ;(can't) Enter Graphics Mode
tg: db '$',0,0,0 ;(can't) Exit Graphics mode
th: db 1EH,'$',0,0 ;Cursor home.
ti: db '$',0,0,0 ;(can't) Reverse linefeed.
tj: db esc,'?$',0,0 ;Clear to end of screen.
tk: db esc,'@$',0,0 ;Clear to end of line.
ENDIF;[22] bbc
;
IF rm380z ;[22]
sysver: db 'Research Machines 380Z$'
outlin: db 1FH,cr,tab,'$'
erascr: db 1FH,'$' ;Clear screen and go home.
eralin: db 0EH,19H,'$' ;Clear line.
curldn: db 16H,'$' ;cursor leadin
ttab: ;Table start location.
ta: db 0BH,'$',0,0 ;Cursor up.
tb: db 0AH,'$',0,0 ;Cursor down.
tc: db 18H,'$',0,0 ;Cursor right.
td: db bs,'$',0,0 ;Cursor left
te: db 1FH,'$',0,0 ;Clear display
tf: db '$',0,0,0 ;(can't) Enter Graphics Mode
tg: db '$',0,0,0 ;(can't) Exit Graphics mode
th: db 1DH,'$',0,0 ;Cursor home.
ti: db '$',0,0,0 ;(can't) Reverse linefeed.
tj: db 1EH,'$',0,0 ;Clear to end of screen.
tk: db 19H,'$',0,0 ;Clear to end of line.
ENDIF;[22] rm380z
IF lobo ;[hh]
sysver: db 'Lobo MAX-80$'
outlin: db esc,'*',cr,lf,tab,tab,'$'
erascr: db esc,'*$' ;[hh] clear screen and home cursor
eralin: db cr,esc,'R$' ;[hh] clear line
curldn: db esc,'=$' ;[hh] cursor lead-in string
delstr: db bs,' ',bs,bs,'$' ;[hh] ??adjust for echoing delete
ttab: ;[hh] table start location
ta: db 0BH,'$',0,0 ;[hh] cursor up
tb: db 0AH,'$',0,0 ;[hh] cursor down
tc: db 0CH,'$',0,0 ;[hh] cursor right
td: db 08H,'$',0,0 ;[hh] cursor left
te: db esc,'*$',0 ;[hh] clear display (homes cursor)
tf: db '$',0,0,0 ;[hh] (can't) enter graphics mode
tg: db '$',0,0,0 ;[hh] (can't) exit graphics mode
th: db 01EH,'$',0,0 ;[hh] home cursor
ti: db esc,'E$',0 ;[hh] reverse linefeed (insert line)
tj: db esc,'Y$',0 ;[hh] clear to end of screen
tk: db esc,'T$',0 ;[hh] clear to end of line
ENDIF ;lobo
IF px8 ; [29]
sysver: db 'Epson PX-8$'
outlin: db esc,'*$'
erascr: db esc,'*$' ; clear screen and home
eralin: db cr,esc,'T$' ; clear line
curldn: db esc,'=$' ; cursor lead in
ttab: ; table start location
ta: db 30,'$',0,0 ; cursor up
tb: db 31,'$',0,0 ; cursor down
tc: db 28,'$',0,0 ; cursor right
td: db 29,'$',0,0 ; cursor left
te: db esc,'*$',0 ; clear display
tf: db '$',0,0,0 ; can't enter graphics graphics mode
tg: db '$',0,0,0 ; can't exit graphics mode
th: db 11,'$',0,0 ; home cursor
ti: db 30,'$',0,0 ; reverse linefeed
tj: db esc,'Y$',0 ; erase to end of screen
tk: db esc,'T$',0 ; erase to end of line
ENDIF ; px8 [29]
;
IF osbrn1
sysver: db 'Osborne 1$'
outlin: db 1AH,cr,lf,tab,'$' ;(Clear screen, home cursor)
erascr: db 1AH,'$' ;Clear screen and go home.
eralin: db cr,esc,'T$' ;Clear line.
delstr: db bs,bs,'$' ; Adjust for delete
curldn: db esc,'=$' ;Cursor lead-in
ttab: ;Table start location.
ta: db ('K'-100O),'$',0,0 ;Cursor up.
tb: db 12O,'$',0,0 ;Cursor down.
tc: db ('L'-100O),'$',0,0 ;Cursor right.
td: db bs,'$',0,0 ;Cursor left.
te: db subt,'$',0,0 ;Clear screen.
tf: db '$',0,0,0 ;(can't) Enter graphics mode
tg: db '$',0,0,0 ;(can't) Exit graphics mode
th: db ('^'-100O),'$',0,0 ;Cursor home.
ti: db ('K'-100O),'$',0,0 ;Reverse linefeed.
tj: db esc,'T$',0 ;(can't) Clear to end of screen.
tk: db esc,'T$',0 ;Clear to end of line.
ENDIF;osbrn1
;
IF vector
sysver: db 'Vector Graphics$'
outlin: db ('D'-100O),cr,lf,tab,tab,'$'
erascr: db ('D'-100O),'$' ;Clear screen and go home.
eralin: db cr,('Q'-100O),'$' ;Clear line.
delstr: db bs,' ',bs,bs,'$' ; adjust for echoing delete character
ttab: ;Table start location.
ta: db ('U'-100O),'$',0,0 ;Cursor up.
tb: db 12O,'$',0,0 ;Cursor down.
tc: db ('Z'-100O),'$',0,0 ;Cursor right.
td: db '$',0,0,0 ;(can't) Cursor left
te: db '$',0,0,0 ;(can't) Clear display
tf: db '$',0,0,0 ;(can't) Enter graphics mode
tg: db '$',0,0,0 ;(can't) Exit graphics mode
th: db ('B'-100O),'$',0,0 ;Cursor home.
ti: db ('U'-100O),'$',0,0 ;Reverse linefeed.
tj: db ('P'-100O),'$',0,0 ;Clear to end of screen.
tk: db ('Q'-100O),'$',0,0 ;Clear to end of line.
ENDIF;vector
IF trs80lb
sysver: db 'TRS-80 II Lifeboat CP/M$'
outlin: db esc,':',cr,lf,tab,tab,'$'
erascr: db esc,':$' ;Clear screen and go home.
eralin: db cr,esc,'T$' ;Clear line.
curldn: db esc,'=$' ;Cursor lead-in
ttab: ;Table start location.
ta: db 0BH,'$',0,0 ;Cursor up.
tb: db 0AH,'$',0,0 ;Cursor down.
tc: db 0CH,'$',0,0 ;Cursor right.
td: db bs,'$',0,0 ;Cursor left
te: db esc,':$',0 ;Clear display
tf: db '$',0,0,0 ;(can't) Enter Graphics Mode
tg: db '$',0,0,0 ;(can't) Exit Graphics mode
th: db 1EH,'$',0,0 ;Cursor home.
ti: db 0BH,'$',0,0 ;Reverse linefeed.
tj: db esc,'Y$',0 ;Clear to end of screen.
tk: db esc,'T$',0 ;Clear to end of line.
ENDIF;trs80lb
;
IF trs80pt
sysver: db 'TRS-80 II P+T CP/M$'
outlin: db 0CH,cr,lf,tab,tab,'$'
erascr: db 0CH,'$' ;Clear screen and go home.
eralin: db cr,01H,'$' ;Clear line.
curldn: db esc,'Y$' ;Cursor lead-in
ttab: ;Table start location ;Must be 4 bytes each
ta: db 1EH,'$',0,0 ;Cursor up.
tb: db 1FH,'$',0,0 ;Cursor down.
tc: db 1DH,'$',0,0 ;Cursor right.
td: db 1CH,'$',0,0 ;Cursor left
te: db 0CH,'$',0,0 ;Clear display
tf: db 11H,'$',0,0 ;Enter Graphics Mode
tg: db 14H,'$',0,0 ;Exit Graphics mode
th: db 06H,'$',0,0 ;Cursor home.
ti: db 1EH,'$',0,0 ;Reverse linefeed.
tj: db 02H,'$',0,0 ;Clear to end of screen.
tk: db 01H,'$',0,0 ;Clear to end of line.
ENDIF;trs80pt
IF osi
outlin: db cr,lf,'Starting ...$'
erascr equ crlf ;"Home & clear" (best we can do).
eralin: db '^U',cr,lf,'$' ;Clear line.
prpack: db cr,lf,'RPack: $'
pspack: db cr,lf,'SPack: $'
ttab equ 0 ; no VT52 table
ENDIF;osi
;
IF hp125 ;[MF]
defesc EQU '\'-100O ;Still Control-\ (just ran out of room...)
vtval EQU 0 ; we probably don't want VT52 emulation
;
sysver: db 'HP-125 Series 100$'
;
outlin: db esc,'H',esc,'J',cr,lf,tab,tab,'$'
erascr: db esc,'H',esc,'J$' ;Clear screen and go home.
eralin: db cr,esc,'K$' ;Clear line.
curldn: db esc,'&a$' ;Cursor leadin
ttab: ;Table start location.
ta: db esc,'A$',0 ;Cursor up.
tb: db esc,'B$',0 ;Cursor down.
tc: db esc,'C$',0 ;Cursor right.
td: db esc,'D$',0 ;Cursor left
te: db esc,'J$',0 ;Clear display
tf: db '$',0,0,0 ;[hh] (can't) enter graphics mode
tg: db '$',0,0,0 ;[hh] (can't) exit graphics mode
th: db esc,'H$',0 ;Cursor home.
ti: db esc,'M$',0 ;Reverse linefeed.
tj: db esc,'J$',0 ;Clear to end of screen.
tk: db esc,'K$',0 ;Clear to end of line.
;
;
; Escape sequences to map CP/M Reader/Punch to Data Comm input/output,
; respectively and to turn off these mappings
;
mapon1: db esc,'&i10s18d9M'
db esc,'&i2s25d9M'
db esc,'&i10s16d2M'
db esc,'&i0s25d2M$';Esc. sequences to turn off DAtacomm2/turn
;on Data Comm 1
mapon2: db esc,'&i10s16d9M'
db esc,'&i0s25d9M'
db esc,'&i10s18d2M'
db esc,'&i2s25d2M$';Esc. sequences to turn off Datacomm1/turn
;on Datacomm 2
mapoff: db esc,'&i0s25d9M'
db esc,'&i10s16d9M'
db esc,'&i2s25d9M'
db esc,'&i10s18d9M$'
;
readin: call $-$ ;Read character into b
mov a,b ;Get 8-bit character
ret ;and return
;
jbuf: db 7 ;bios dispatch table vector argument block
db 0 ;to read RDR routine address
db 0c3h ;...
dw 0 ;...
;
ENDIF;hp125 ;[MF]
IF lasm and termin ; if no terminal, no need to link
LINK CPXVDU.ASM
ENDIF ; lasm and termin
ovlend EQU $
IF lasm
END ; If m80 then this ignored
ENDIF ; lasm