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cpsker.asm
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Assembly Source File
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1991-04-23
|
15KB
|
316 lines
; CPSKER.ASM
; 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
; 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 is the header for the system-independent portion of KERMIT, which
; consists of the following files (in this order):
;
; CPSKER.ASM - this file
; CPSDEF.ASM - definitions for both KERMIT and KERSYS
; CPSMIT.ASM - \initialization, main loop, miscellaneous commands
; CPSCOM.ASM - /(BYE, EXIT, LOG, SET, SHOW, and STATUS) (Part1 of 2)
; CPSPK1.ASM - \the KERMIT protocol handler (SEND, RECEIVE, LOGOUT,
; CPSPK2.ASM - / and FINISH commands) (In two parts)
; CPSREM.ASM - REMOTE commands etc
; CPSSER.ASM - SERVER commands etc (Empty as yet)
; CPSTT.ASM - the transparent commands (TRANSMIT, CONNECT)
; CPSCPM.ASM - CP/M commands (DIR, ERA)
; CPSWLD.ASM - the wildcard handler
; CPSCMD.ASM - the command parser
; CPSUTL.ASM - utility routines
; CPSDAT.ASM - Data space and the overlay link space
;
; When building the system-independent part with M80 or MAC80, CPSKER
; INCLUDEs the other files; when building with LASM, each file LINKs to
; the next file.
;
; For now, the system-dependent routines are all in CPSSYS.ASM, with
; the actual configuration defined in CPSTYP.ASM.
;
; revision history (latest first):
;
; Begin CP/M Kermit-80 version 4.11.
;edit 32, 1-Apr-1991 by MF. Official release of work to date as CP/M Kermit
; (Kermit-80) Version 4.11.
; Modified edit level of cpscpm.asm to reflect a bug fix for the TYPE
; command introduced with edit 13.
;edit 31, 29-Mar-1991 by MF. Modified edit levels of cpsker.asm,
; cpscom.asm and cpsdat.asm to reflect rename of parameter vermin to
; revno (revision level) and change of SET COLLISION REPLACE to
; SET COLLISION OVERWRITE to conform with C-Kermit. Modified
; edit level of cpsrem.asm to reflect change from REMOTE SET FILE
; COLLISION REPLACE to REMOTE SET FILE COLLISION OVERWRITE.
; Modified edit level of cpsutl.asm to reflect code tightening and
; edit levels of cpsmit.asm and cpspk2.asm to close any open TAKE-file
; and abort take-file processing if ^C is typed from the console
; Also corrected ^Z test in cpsmit.asm in INPUT command ("inp2b")
; Implement "file not found" complaint if a TAKE command can't find
; the TAKE-file and it's not the initial TAKE (KERMIT.INI)
; Modified edit level of cpscpm.asm to reflect modification of the
; TYPE and PRINT commands to cancel file typeout/printout completely
; if ^C is entered on the console (either immediately or after a key
; has been pressed to induce a pause) and to immediately begin
; typeout/printout of the next file (if the filespec was wild-carded)
; if ^X is entered (either immediately or after a key has been pressed
; to induce a pause).
; Modified edit levels of cpsmit.asm and cpscom.asm to reflect addition
; of the STAY command as a synonym for SET NO-EXIT.
;edit 30, 27-Feb-1991 by MF. Modified edit levels of cpscom.asm,
; cpsmit.asm, cpsutl.asm and cpsdat.asm to reflect provision for
; a "revision level" field (1-26=A-Z), addition of QUIT as a synonym
; for the EXIT command, recognition of C, R and S as abbreviations
; for the CONNECT, RECEIVE and SEND commands, respectively, display
; of Kermit version in the VERSION command and a fix to the TAKE-file
; input routine "r1tchr" to prevent semicolons from being interpreted
; as command separators during TAKE-file execution. This last fix
; allows such commands as REMOTE DELETE *.*;* to Kermit-32 to
; operate as expected.
;edit 29, 14-Feb-1991 by MF. Updated edit levels of cpscom.asm,
; cpscpm.asm, cpsdat.asm and cpsrem.asm to reflect bug fixes,
; code tightening and simplified routine "remcli" (in cpsrem.asm)
; which gets text to be passed on to a remote Kermit in REMOTE
; Kermit commands.
;edit 28, 8-Feb-1991 by MF. Changed edit level of cpscpm.asm to reflect
; a bug fix to make TAKE-files work properly with commands such as
; INPUT which check the keyboard for input.
;edit 27, 30-Jan-1991 by MF. Changed edit levels of cpscpm.asm, cpsrem.asm,
; cpstt.asm and cpsutl.asm to reflect bug fixes and enhancements
;edit 26, 17-Jan-1991 by MF. Changed edit level of cpscmd.asm to
; reflect fixes to allow leading spaces/tabs to be ignored when
; parsing keywords (this was the intent but the code never worked
; correctly) and to blank the entire fcb in "cmifil" to allow successive
; COPY commands to function properly. Also changed edit level of
; cpspk1.asm to reflect further work on "disk full" error reporting.
;edit 25, 14-Jan-1991 by MF. Incremented edit level of cpspk1.asm to
; reflect bug fix to "disk full" error reporting code so <cr><lf>
; is not sent directly to the Remote Kermit. This per a report from
; Russell Lang of Australia's Monash University.
;edit 24, 10-Jan-1991 by MF. Modified edit level of cpxtyp.asm to
; reflect addition of "terminal required" message for some.
; machines.
;edit 23, 7-Jan-1991 by MF. Modified edit levels of cpxtyp.asm, cpxswt.asm,
; cpxbbi.asm to reflect addition of Ampro Little Board support.
;edit 22, 3-Jan-1991 by MF. Incremented edit levels of cpspk1.asm/cpspk2.asm
; to reflect further mods to "sdata" and "inchr" routines.
;edit 21, 2-Jan-1991 by MF. Incremented edit level of cpspk1.asm to reflect
; code cleanup in "sdata" routine.
;edit 20, 26-Dec-1990 by MF. Modified edit level of CPSCMD.ASM to reflect
; fix to allow leading white space to be skipped in lines from
; TAKE-files as well as from the CP/M command-line tail; this per a
; phoned-in bug-report to Dr. Martin J. Carter of Nottingham
; University in the U.K. (PPZMAJOC@vax.ccc.nottingham.ac.uk)
;edit 19, 14-Dec-1990 by MF. Modified edit level of cpspk2.asm to reflect
; modification to "gofil" to allow drive specifications in 2nd
; filename of GET and RECEIVE commands; also modified edit levels of
; cpspk1.asm and cpsrem.asm to reflect addition of "<<>>" around
; "X" or "F" packets coming as a reply to a REMOTE command and
; deletion of an unnecessary instruction before label remc2d
; in cpsrem.asm.
;edit 18, 9-Dec-1990 by MF. Modified edit levels for Version 4.10
; yet another time to reflect changes in CPSDAT.ASM to clarify
; "File size on DIR" status message.
;edit 17, 4-Dec-1990 by MF. Adjusted edit levels of cpscom.asm/cpsdat.asm
; to reflect addition of Autoreceive status to SHOW/STATUS display.
;edit 16, 30-Nov-1990 by MF. Adjusted edit levels of cpscom.asm/cpsdat.asm
; to reflect fix to SHOW/STATUS routines to show terminal display
; mode (quiet/regular). Also adjusted edit level of cpsutl.asm to reflect
; change to routine "p20ln" to use "pausit" to save code space.
; Adjusted edit level of cpsdef.asm to reflect change in "fairness"
; counter prfair from 100 to 50 to make terminal a bit more responsive
; during CONNECTs.
;edit 15, 27-Nov-1990 by MF. Adjusted edit level of cpspk1.asm to reflect
; a bug fix.
;edit 14, 27-Nov-1990 by MF. Again adjusted edit level of cpspk1.asm to
; reflect modifications of "disk-full"and SET INCOMPLETE-FILES behavior.
;edit 13, 23 Nov-1990 by MF. Adjusted edit level of cpspk1.asm to reflect
; code changes for "disk full" processing.
;edit 12, 8-Nov-1990 by MF.
; Adjusted edit levels shown for cpscom.asm/cpspk1.asm/cpsdat.asm to
; reflect bug fixes and code revisions.
;edit 11, 5-Nov-1990 by MF.
; Cosmetic changes for main help text for COPY and RENAME commands.
; Begin CP/M Kermit-80 version 4.10.
;edit 10, 2-Nov-1990 by MF. Moved Overlay address to 7000H (cpsdat.asm).
;edit 9, 1-Nov-1990 by Mike Freeman (BPA). Cosmetic changes (command-name
; changes: SET BAUD-RATE==>SET SPEED, FCOPY==>COPY, FRENAME==>RENAME,
; STRING==>OUTPUT, REMOTE CWD==>REMOTE CD per suggestions of FDC
; to aid in uniformity of nomenclature for various Kermits.
;edit 8, 30-Oct-1990 by Michael Freeman; 301 N.E. 107th Street;
; Vancouver, WA 98685 USA; Telephone (206)574-8221.
; Work: Bonneville Power Administration
; P.O. Box 491 M/S MORF
; Vancouver, WA USA 98666
; Telephone (206)690-2307
; Implemented FRENAME command to rename a CP/M file.
; Implemented many Remote commands, variable-length packets up thru
; 94 characters in length. Fixed a bug in CPSCOM.ASM in the
; routine "getnp" and a bug in CPSCOM.ASM which caused garbage to appear
; on the screen when PRTSTR was called with QUIETD flag set.
; Modified code in module CPSCMD.ASM to skip leading spaces and tabs
; when getting Kermit commands from the CP/M command line. This also
; obviates the necessity to type a leading semicolon to separate the
; Kermit command from the Kermit commands on the CP/M command line.
; Fixed code in CPSPK2.ASM which handles file collision detection
; and resulting file rename per my entries in CPKERM.BWR.
; and included fix by Russell Lang of Dept. of Electrical and Computer
; Engineering, Monash University, Australia, to prevent renamed
; files with SET WARNING ON from having the attributes (e.g., R/O)
; copied from original file. Mr. Lang's E-mail address is:
; Russell Lang Email: rjl@monu1.cc.monash.edu.au Phone: (03) 565 3460
; Department of Electrical and Computer Systems Engineering
; Monash University, Australia
; Also fixed a bug in CPSPK2.ASM which prevented completion messages
; from being displayed if terminal was set to QUIET.
; Implemented most proposed SET FILE-COLLISION (COLLISION) commands.
; Implemented SET INCOMPLETE file disposition command.
; Implemented a few of the proposed REMOTE SET commands.
; Implemented other fixes suggested in CPKERM.BWR.
; Moved overlay address to 6C00H.
; Changed location of .printx in this file so LASM doesn't complain.
; In system-dependent modules, included HP-125 support.
; Also modified Telcon Zorba code in CPXHEA.ASM to enable setting
; of baud-rates and sending of a break.
; Included Russell Lang of Monash Univ. Australia's implementation
; for the Microbee series of computers (CPXBEE.ASM).
; Fixed COMPUPRO version of Kermit to compile correctly and to
; conform to current syntax for setting baud-rate.
; edit 7, September, 1987. Added files for SERVER and REMOTE
; modules (CPSSER/CPSREM). SERVER is still empty, and may be
; only wishfull thinking. I have ideas, but I dont think I
; will have the time to implement it.
;
; edit 6: 30 March, 1987 by OBSchou. Start Kermit-80 V4.09 with the
; overlay address at 6000h. Also adjusted the INCLUDEs to allow
; M80 to assmeble these files.
;
; edit 5: 20 June, 1986. Have added so much code etc that the overlay had to
; be moved again.. give it to 5000h. This starts off Kermit-80 V4.08
;
; edit 4 22 April 1986
; Start work on 4.06. This should clear up a couple of bugs, add in
; a few features, and split the system dependent stuff into
; smaller units.
;
; edit 3a 7 March 86 OBSchou Loughborough england. Minor additions
; to cpsker.asm, cpscmd.asm and cpspkt.asm.
;
; edit 3: February 10, 1985 (CJC)
; Update for v4.05; add "verno" so CPSUTL doesn't have to change
; just because some other module did.
;
; edit 2: September 10, 1984 (CJC)
; Update for v4.03.
;
; edit 1: July 27, 1984 (CJC)
; Created to allow assembly of Kermit by LASM as well as MAC80 and M80.
verno EQU 11 ; minor version number
revno EQU 0 ;[MF]Revision level
;[MF]0-26 yields A-Z
; Version 4.10 of Kermit consists of the following edit levels:
; cpsker.asm edit 32
; cpsdef.asm edit 9
; cpsmit.asm edit 30
; cpscom.asm edit 13
; cpspk1.asm edit 23
; cpspk2.asm edit 11
; cpsrem.asm edit 13
; cpsser.asm edit 1
; cpstt.asm edit 12
; cpscpm.asm edit 14
; cpswld.asm edit 4
; cpscmd.asm edit 13
; cpsutl.asm edit 30
; cpsdat.asm edit 19
; cpxlnk.asm edit 8 (cpslnk.asm is not assembled with cpsker, but it
; defines the linkage area expected by cpsker, and so must
; match the description in cpsutl.asm)
; cpxswt.asm edit 10
;
; Version 4.10 of Kermit has been tested with the following edit levels of
; the system-dependent files:
; cpxtyp.asm edit 34
; cpxsys.asm edit 40
; cpxhea.asm edit 4
; cpxtor.asm edit 4
; cpxbbi.asm edit 4 (Ampro Little Board)
;
; Version 4.10 of Kermit is still to be tested fully against all known systems
; so far included in the system dependent overlays.
;
FALSE equ 0
TRUE equ NOT FALSE
cpsker equ TRUE ; building system-independent part
debug equ FALSE ; set false for running system. True => does some
; unusual or unexpected things.
;
; Assembler type. Define the appropriate one TRUE, the rest FALSE. (We can't
; use ASM, because it cannot handle multiple input files)
mac80 EQU FALSE ; For assembly via MAC80 cross-assembler.
m80 EQU false ; For assembly via Microsoft's M80.
lasm EQU true ; For assembly via LASM, a public-domain
; assembler.
;
; Get the other modules...
IF lasm ; If we're linking, go on to the next file.
LINK CPSDEF
ENDIF;lasm
; If we're still here, we must be using M80 or MAC80. M80 doesn't
; like ENDs inside conditionals, but the END statement has to be
; in CPSUTL for LASM (otherwise, we'd need a file containing just an
; END statement). So, we leave off the IF m80 OR mac80 conditional
; that ought to be around these INCLUDEs. No problem until the next
; incompatible assembler comes along...
; Let's first say where we are:
;
.printx * CPSKER.ASM (or nearest offer) *
;
.printx * CPSDEF.ASM *
INCLUDE CPSDEF.ASM ; definitions
.printx * CPSMIT.ASM *
INCLUDE CPSMIT.ASM ; initialization, main loop, some commands
.printx * CPSCOM.ASM *
INCLUDE CPSCOM.ASM ; part of command/status/set etc
.printx * CPSPK1.ASM *
INCLUDE CPSPK1.ASM ; KERMIT protocol handler (Part 1)
.printx * CPSPK2.ASM *
INCLUDE CPSPK2.ASM ; KERMIT protocol handler (Part 2)
.printx * CPSREM.ASM *
INCLUDE CPSREM.ASM ; Kermit REMOTE code (little in it, as yet)
.printx * CPSSER.ASM *
INCLUDE CPSSER.ASM ; Kermit SERVER code (As yet, empty)
.printx * CPSTT.ASM *
INCLUDE CPSTT.ASM ; transparent communication handler
.printx * CPSCPM.ASM *
INCLUDE CPSCPM.ASM ; CP/M command support (DIR, ERA)
.printx * CPSWLD.ASM *
INCLUDE CPSWLD.ASM ; wildcard handler
.printx * CPSCMD.ASM *
INCLUDE CPSCMD.ASM ; command parser
.printx * CPSUTL.ASM *
INCLUDE CPSUTL.ASM ; Various utilities and data, and END [ToadHall]
.printx * CPSDAT.ASM *
INCLUDE CPSDAT.ASM
END ; MAC80 ignores END's in included files...