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- ; 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 definitions used by both modules of Kermit.
- ;
- ; revision history:
- ;
- ;edit 9, 30-Nov-1990 by MF. Make "fairness" count "prfair" be 50 so
- ; console gets checked a bit more often.
- ; edit 8, 11-Sep-1990 by MF. Make default RECEIVE and SEND packet-size
- ; 80 (per Kermit standard) as packet size is adjustable in Version
- ; 4.10.
- ; edit 7 16-Jun-86 OBSchou. Added cmnum in the command opcodes. This gets a
- ; number from the user inot variable number. No checking on overflow.
- ;
- ; edit 6 13-May-86 OBSchou. BDOS calls trapped to check for console use
- ; as we want to substitute in commands from a TAKE file. Trapping
- ; means I dont have to go through an check ever BDOS call...
- ;
- ; edit 5: 22-Apr-86 by Bertil Schou, Loughborough University, UK
- ; moved some definitions from the CP4SYS.ASM file to here for
- ; Kermit version 4.06
- ;
- ; edit 4: 6-Feb-85 by Charles Carvalho
- ; modify pcc007: replace ffussy assembly switch with runtime test.
- ; add "getvnm" - get CP/M version number.
- ;
- ; edit 3: 13-Jan-85 by Vanya J.Cooper Pima Commun. College Tel: 602-884-6809
- ;
- ;pcc007 2-Jan-85 vjc modules:cp4def,cp4cmd
- ; Cmifil is too fussy about what characters to accept in a
- ; filespec. My CP/M manual says any printable character is ok
- ; except <>.,;:?*[], and lower case. In practice, even those work
- ; sometimes. Kermit itself uses '&' if file warning is on,
- ; and then won't let you reference the file. Allow all
- ; printable characters except those above. Add conditional
- ; ffussy, so that if not ffussy, all special characters will be
- ; allowed, just convert lower to upper-case.
- ;
- ;pcc008 2-Jan-85 vjc modules:cp4def,cp4tt,cp4utl
- ; Keyboard input during CONNECT mode can get locked out if
- ; there is enough input from the modem port to keep prtchr
- ; busy. This can happen for example, if the printer is running
- ; at the same speed as the modem line, leaving you helpless to
- ; turn it off or abort the host. Add a fairness count, so that
- ; at least every prfair characters we look at console input.
- ;
- ; edit 2: July 10, 1984 (CJC)
- ; Remove defines for TRUE and FALSE, during reorganization for LASM
- ; compatibility. If we're using LASM, this file is linked by CP4KER
- ; or CP4TYP, and links to CP4MIT or CP4LNK. Also, push comments around
- ; a little.
- ;
- ; edit 1: May, 1984 (CJC)
- ; extracted from CPMBASE.M80 version 3.9; modifications are described
- ; in the accompanying .UPD file.
- ;
-
- ;Symbolic Definitions for some ASCII characters
- ;
- soh EQU 01O ;ASCII SOH (Control-A)
- cntlc EQU 03O ;ASCII ETX (Control-C)
- ctrlc EQU 03O ;ASCII ETX (Control-C)
- bell EQU 07O ;ASCII BEL (Control-G)
- bs EQU 10O ;ASCII backspace (Control-H)
- tab EQU 11O ;ASCII Tab (Control-I)
- lf EQU 12O ;ASCII Line Feed (CTRL-J)
- ff EQU 14O ;ASCII Form Feed (CTRL-L)
- cr EQU 15O ;ASCII Carriage Return (CTRL-M)
- space EQU 20h ;ASCII Space
- xon EQU 21O ;ASCII XON (Control-Q)
- xoff EQU 23O ;ASCII XOFF (Control-S)
- esc EQU 33O ;ASCII ESCape
- semico EQU 3bh ;ASCII Semicolon
- subt EQU 32O ;ASCII SUB (CTRL-Z)
- cntlz EQU subt ;ASCII SUB (Control-z) [6]
- ctrlz EQU subt ;ASCII SUB (Control-z)
- del EQU 177O ;ASCII DELete (rubout)
- ;
- ;BDOS calls
- IF NOT cpsker ;[6] If CPSKER is truem then system indep. stuff. We want
- ;to trap BDOS calls and test for console activity
- bdos EQU 0005H ;BDOS entry point, for the following functions:
- ENDIF ;NOT cpsker [6]
- ;
- ;Function Name Function Input Parameters Output Parameter
- ;============= ======== ================ ================
- ; (ALL Function Numbers are passed in Register C)
- conin EQU 01H ;Read Console NONE ASCII Char in A
- conout EQU 02H ;Write Console ASCII Char in E NONE
- auxin EQU 03H ;Auxiliary input
- rdrin EQU 03H ;Read Reader NONE ASCII Char in A
- lstout EQU 05H ;Write List ASCII Char in E NONE
- dconio EQU 06H ;Direct Con I/O ASCII Char in E I/O Status in A
- ; if E=0FEH,
- ; Input if E=0FFH
- prstr EQU 09H ;Print String String-Address NONE
- ; in DE (term=$)
- rdstr EQU 0AH ;Read Buffer Buffer-Address Read Buffer filled
- ; in DE
- ; Read Buffer Byte Function
- ; 1 Maximum Buffer Length
- ; 2 Current Buffer Length (returned value)
- ; 3-n Data (returned values)
- ;
- consta EQU 0BH ;Console Stat NONE LSB(A)=1 if char ready
- getvnm EQU 0CH ;Version Number NONE H=0 (CP/M), L=BDOS ver
- inbdos EQU 0DH ;Init BDOS NONE NONE
- logdsk EQU 0EH ;LOG-In disk Value in E NONE
- ; A=0,B=1,...
- openf EQU 0FH ;Open File FCB-Addr in DE Byte Addr.of FCB,
- ; or 0FFH if not
- closf EQU 10H ;Close File FCB-Addr in DE Byte Addr.of FCB,
- ; or 0FFH if not
- sfirst EQU 11H ;Search File FCB-Addr in DE Byte Addr.of FCB(0-3),
- ; or 0FFH if not
- snext EQU 12H ;Search next FCB-Addr in DE Byte Addr.of next FCB,
- ; or 0FFH if not
- delf EQU 13H ;Delete File FCB-Addr in DE Byte Addr.of FCB(0-3),
- ; or 0FFH if not
- readf EQU 14H ;Read Record FCB-Addr in DE 0=successful read
- ; 1=read past EOF
- ; 2=reading random data
- writef EQU 15H ;Write Record FCB-Addr in DE 0=successful write
- ; 1=ERROR extending
- ; 2=End of disk data
- ; 255=No more DIR space
- makef EQU 16H ;Make File FCB-Addr in DE 0-3= success,
- ; 255= no more dir space
- renam EQU 17H ;Rename File FCB-Addr in DE 0-3= success,
- ; 255= file not found
- rdlog EQU 18H ;Ret. Log Code NONE Login Vector in HL
- rddrv EQU 19H ;Read Drive # NONE # of logged in drive in
- ; (A=0,B=1,C=2....)
- setdma EQU 1AH ;Set DMA Addr. Addr. of 128 NONE
- ; byte buffer in DE
- wrtprt EQU 1CH ;Write prot dsk NONE NONE
- getrov EQU 1DH ;Get R/O Vect. NONE HL= R/O Vect. value
- setfat EQU 1EH ;Set File Attr. FCB-Addr.in DE Dir. code in A
- gtdpar EQU 1FH ;Get DSK par. NONE HL=DPB Address
- usrcod EQU 20H ;Get/Set Usr.Cd E=0FFH (get) A=current code (get)
- ; E-code (set) A=no value (set)
- rrand EQU 21H ;Read Random FCB-Addr in DE A=Return code
- wrand EQU 22H ;Write Random FCB-Addr in DE 1=read'g unwritten data
- ; 2=(not used)
- ; 3=can't close curr. ext
- ; 4=seek to unwr. ext.
- ; 5=dir overflow(write)
- ; 6=seek past End of DSK
- cflsz EQU 23H ;Comp File Sz. FCB Addr.in DE Rand.Rec.field set to
- ; File size
- setrar EQU 24H ;Set Rand. Rec. FCB-Addr.in DE Rand.Rec.field set
-
- ; CPM 2 only:
- punout EQU 04H ;Write Punch ASCII Char in E NONE
- gtiob EQU 07H ;Get I/O status NONE I/O Status in A
- ptiob EQU 08H ;Put I/O status I/O Status in E NONE
- getalv EQU 1BH ;Get All.Vect. NONE All.Vect in HL
-
- ; CPM 3 only:
- auxout EQU 04H ;Auxiliary output
- auxist EQU 07H ;Get AUXIN: status A=FF if character
- ; ready, A=0 if none
- auxost EQU 08H ;Get AUXOUT: status A=FF if ready, A=0
- ; if not ready
- getfs EQU 2EH ;Get free space E=drive # rec free in dma addr
- ;
- parevn EQU 00H ;Even parity.
- parmrk EQU 03H ;Mark parity.
- parnon EQU 06H ;No parity (eighth bit is data).
- parodd EQU 09H ;Odd parity.
- parspc EQU 0CH ;Space parity.
-
- defpar EQU parnon ;Default parity.
- ibmpar EQU parmrk ;IBM COMTEN's parity.
-
- fcb EQU 5CH ;Location of File Control Block.
- fcbext equ fcb+12
- fcbrno equ fcb+33
- buff EQU 80H ;Location of file output buffer (DMA).
- bufsiz EQU 80H ;Size of DMA.
-
- maxfcb equ 64 ; maximum of 64 fcbs to be stored in multiple fcb bock
-
- maxpkt EQU '~'-' '+2O;Maximum size of a packet.
- maxtry EQU 05O ; Number of retries on a packet.
- imxtry EQU 20O ; Number of retries send initiate.
- prfair EQU 50 ;[pcc008] Prtchr fairness count
-
- ; opcodes for command parser
- cmkey EQU 01H ;Parse a keyword.
- cmifi EQU 02H ;Parse an input file spec (can be wild).
- cmofi EQU 03H ;Parse an output file spec.
- cmcfm EQU 04H ;Parse a confirm.
- cmtxt EQU 05H ;Parse text.
- cmnum EQU 06h ;Parse a number
- cmifin EQU 10H ;Parse an input file spec (but no
- ;Error output
-
- ;[4] from CP4SYS.ASM
- ;
- ;=========================================================================
- ; I/O Byte assignments (2-bit fields for 4 devices at loc 3)
- ;
- ;bits 6+7 LIST field
- ; 0 LIST is Teletype device (TTY:)
- ; 1 LIST is CRT device (CRT:)
- ; 2 LIST is Lineprinter (LPT:)
- ; 3 LIST is user defined (UL1:)
- ;
- ;bits 4+5 PUNCH field
- ; 0 PUNCH is Teletype device (TTY:)
- ; 1 PUNCH is high speed punch (PUN:)
- ; 2 PUNCH is user defined #1 (UP1:)
- ; 3 PUNCH is user defined #2 (UP2:)
- ;
- ;bits 2+3 READER field
- ; 0 READER is Teletype device (TTY:)
- ; 1 READER is high speed reader (RDR:)
- ; 2 READER is user defined #1 (UR1:)
- ; 3 READER is user defined #2 (UR2:)
- ;
- ;bits 0+1 CONSOLE field
- ; 0 CONSOLE is console printer (TTY:)
- ; 1 CONSOLE is CRT device (CRT:)
- ; 2 CONSOLE is in Batch-mode (BAT:);READER = Input,
- ; LIST = Output
- ; 3 CONSOLE is user defined (UC1:)
- ;
- ;=========================================================================
-
- iobyte EQU 03H ;Location of I/O byte
-
- ;[4] From CP4SYS.ASM
- ;
- ;
- ;
- ; Protocol parameters. Some of these can be changed with commands.
- ;
-
- drpsiz SET 50H ;Default receive packet size. (maximum is 5EH)
- dspsiz SET 50H ;Default send packet size. (maximum is 5EH)
- dstime SET 08H ;Default send time out interval.
- drtime SET 05 ;Default receive time out interval
-
- dspad EQU 00H ;Default send padding.
- drpad EQU 00H ;Default receive padding.
- dspadc EQU 00H ;Default send padding char.
- drpadc EQU 00H ;Default receive padding char.
- dseol EQU CR ;Default send EOL char.
- dreol EQU CR ;Default receive EOL char.
- dsquot EQU '#' ;Default send quote char.
- drquot EQU '#' ;Default receive quote char.
- dschkt EQU '1' ;Default checksum type
- ;
-
- ; Define VT or Terminal type values
- vtdefo EQU 0 ;VT52 emulation by terminal itself.
- vtdefv EQU 1 ;VT52 emulation by ttab tables in CPXVDU.ASM etc
- vtdefd EQU 2 ;Dumb Terminal (Just prints)
- vtdefe EQU 3 ;Termianl emulation done outside (in overlay)
-
-
- ; If this is being assembled by LASM, we need to LINK to one of two modules;
- ; if we're not using LASM, no problem.
- ; CPSKER.ASM defines "cpsker" TRUE, and CPXTYP.ASM defines it FALSE, so we can
- ; determine what's going on.
- IF lasm AND cpsker ; building CP4KER with LASM?
- LINK CPSMIT ; yes, chain to next piece.
- ENDIF;lasm AND cpsker
- IF lasm AND NOT cpsker ; LASM, but not building CP4KER?
- LINK CPXLNK ; yes, chain to different piece.
- ENDIF;lasm AND NOT cpsker
-