GETSYM and 20XCSV - KCC support programs.

Makefile

@@ -7,7 +7,7 @@ NETMASK=255,255,255,248
 SRC = system syseng sysen1 sysen2 sysen3 sysnet kshack dragon channa	\
       midas _teco_ emacs emacs1 rms klh syshst sra mrc ksc eak gren	\
       bawden _mail_ l lisp libdoc comlap lspsrc nilcom rwk	\
-      inquir acount gz sys decsys ecc alan sail
+      inquir acount gz sys decsys ecc alan sail kcc
 DOC = info _info_ sysdoc sysnet kshack _teco_ emacs emacs1
 BIN = sys2 device emacs _teco_ lisp liblsp alan inquir sail comlap
 

README.md

@@ -97,6 +97,7 @@ A list of [known ITS machines](doc/machines.md).
 5. Remaining programs are rebuilt:
 
    - 11SIM, PDP-11 emulator.
+   - 20XCVT, convert TOPS-20 CSAVE file to PDUMP.
    - @, cross reference generation tool.
    - ACCLNK, sets com-link accept bit for specified TTY.
    - ACOUNT, dummy account program used for users from safe sites.
@@ -145,6 +146,7 @@ A list of [known ITS machines](doc/machines.md).
    - FRETTY, display list of free TTYs.
    - FTPS, FTP Server.
    - FTPU, FTP Client.
+   - GETSYM, copy all symbols from running ITS to a file.
    - GMSGS, copy system messages to mail file.
    - H3MAKE, a job that requests DRAGON to build host table.
    - HEXIFY, convert COM file into Intel HEX format.

build/build.tcl

@@ -1271,8 +1271,12 @@ respond "*" ":link dragon;hourly tmpkil,sys2;ts tmpkil\r"
 respond "*" ":midas sys2;ts what_syseng;what\r"
 expect ":KILL"
 
-# EXECVT
-respond "*" ":midas sys2;ts execvt_sysen3;execvt\r"
+# Build KCC support programs: EXECVT, GETSYM, and 20XCSV.
+respond "*" ":midas sys2;ts execvt_sysen3;execvt\r" 
+expect ":KILL"
+respond "*" ":midas kcc;ts getsym_getsym\r"
+expect ":KILL"
+respond "*" ":midas kcc;ts 20xcsv_20xcsv\r"
 expect ":KILL"
 
 # UP

src/kcc/20xcsv.1

@@ -0,0 +1,73 @@
+	TITLE 20XCSV
+
+;Reads a 20X CSAVE file and writes an ITS bin file.
+
+A=1
+B=2
+C=3
+D=4
+E=5
+T=6
+TT=7
+
+P=17
+
+DKIC=10
+DKOC=11
+
+PDL:	-20,,.
+	BLOCK 21
+
+JCL:	BLOCK 10
+
+GO:	MOVE P,PDL
+	.BREAK 12,[5,,JCL]
+	MOVE A,[440700,,JCL]
+	MOVE D,[440600,,B]
+	MOVEI B,0
+FNR:	ILDB C,A
+	CAIG C,40
+	 JRST FNR2
+	CAIGE C,140
+	 SUBI C,40
+	TLNE D,770000
+	 IDPB C,D
+	JRST FNR
+
+FNR2:	.CALL [ SETZ ? SIXBIT/OPEN/ ? [.BII,,DKIC] ? [SIXBIT/DSK/] ? B ? SETZ ['20XBIN] ]
+	 .LOSE %LSFIL
+	.CALL [ SETZ ? SIXBIT/OPEN/ ? [.BIO,,DKOC] ? [SIXBIT/DSK/] ? B ? SETZ ['BIN,,] ]
+	 .LOSE %LSFIL
+	HRROI T,[JRST 1]	;F A D?
+	.IOT DKOC,T
+LP:	HRROI T,TT
+	.IOT DKIC,T		;Get IOWD
+	JUMPL T,EOFERR
+	JUMPGE TT,SADR
+	ADDI TT,1		;AOBJN pointer
+	MOVE B,TT
+	MOVE D,TT		;Accumulate checksum in D
+	HRROI T,TT
+	.IOT DKOC,T
+LP1:	HRROI T,TT
+	.IOT DKIC,T
+	JUMPL T,EOFERR
+	ROT D,1
+	ADD D,TT
+	HRROI T,TT
+	.IOT DKOC,T
+	AOBJN B,LP1
+	HRROI T,D
+	.IOT DKOC,T
+	JRST LP
+
+EOFERR:	.VALUE
+
+SADR:	HRROI T,TT		;Output start address twice, no symbols
+	.IOT DKOC,T
+	HRROI T,TT
+	.IOT DKOC,T
+	.CLOSE DKOC,
+	.LOGOUT 1,
+
+	END GO

src/kcc/getsym.8

@@ -0,0 +1,123 @@
+; -*- Midas -*-
+
+title GETSYM - Extract ITS system symbol definitions
+
+a=:1
+b=:2
+c=:3
+d=:4
+e=:5
+t=:6
+tt=:7
+
+p=:17
+
+chdsko=:16
+
+call=:pushj p,
+return=:popj p,
+save==:push p,
+rest==:pop p,
+flose=:.lose %lsfil
+slose=:.lose %lssys
+pause=:.break 16,100000
+quit=:.logout 1,
+
+define syscall name,args
+	.call [setz ? .1stwd sixbit /name/ ? args(400000)]
+termin
+
+.insrt dsk:syseng;format >
+
+outstr:	syscall siot,[movei chdsko ? a ? b]
+	 slose
+	return
+
+define format &string&,args
+	call [
+	call $format
+.zzz.==-1
+irp arg,,[args]
+	save arg
+.zzz.==.irpcnt
+termin
+	hrroi a,[ascii string]
+	movei b,.length string
+	movni c,.zzz.+1
+	jrst format"format]
+termin
+
+$forma:	save a
+	save b
+	save c
+	call @-3(p)
+	rest c
+	rest b
+	rest a
+	rest (p)
+	return
+
+.vector pdl(lpdl==:100.)
+
+usrvar:	sixbit /OPTION/	? tlo %opint\%opopc
+	sixbit /MASK/	? move [%pipdl]
+	sixbit /XUNAME/	? movem xuname
+lusrvar==:.-usrvar
+
+.scalar xuname,itsnam,itsvrs
+
+go:	move p,[-lpdl,,pdl-1]
+	move tt,[-lusrvar,,usrvar]
+	syscall usrvar,[movei %jself ? tt]
+	 slose
+	syscall sstatu,[repeat 5,[ movem tt ? ] movem itsnam ? movem itsvrs]
+	 slose
+.vector syms(lsyms==:4000)
+	move t,[-lsyms,,syms]
+	move tt,[sixbit /CALLS/]
+	.getsys t,
+	 .lose			; Just assemble with a larger LSYMS...
+	hrloi a,-1-syms(t)
+	eqvi a,syms		; A: aobjn to symbols
+	syscall open,[movsi .uao ? movei chdsko ? [sixbit /DSK/]
+			[sixbit /ITSSYM/] ? move itsvrs]
+	 flose
+	.rdatim t,
+	format "; System symbols for ~S ITS ~S (dumped by ~S ~S-~S).~@
+		UNIVERSAL ITSSYM~@
+		ASUPPRESS~@
+		",[itsnam,itsvrs,xuname,t,tt]
+loop:	skipge 0(a)
+	 jrst hkiled
+	move t,1(a)
+	tlne t,777000
+	 jrst opdfed
+	format "~U=<~:H>~%",[0(a),1(a)]
+	jrst next
+	
+opdfed:	format "OPDEF ~U [~:H]~%",[0(a),1(a)]
+	jrst next
+
+hkiled:	format "~U==<~:H>~%",[0(a),1(a)]
+next:	aobjn a,.+2
+	 .lose			; Can't happen
+	aobjn a,loop
+	format "END~%" 
+	quit
+
+tsint:
+loc 42
+	-ltsint,,tsint
+loc tsint
+	400000,,p
+ltsint==:.-tsint
+
+cnstnts:
+constants
+variables
+
+patch::
+pat:	block 100.
+epatch:	-1			; Make memory exist, end of patch area
+
+end go