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	universal PASUNV - Symbols for PASCAL runtimes

	;REGISTER DEFINITION

	.directive .nobin

	tenex==0	;all other programs search this file, so this
			;is where the dirty work gets done.
	pa2040==0	;this is tenex with simulator for COMND, etc.
			; if you change this, reassemble PASIO.MAC.
			;Note: the "vanilla" Tenex version has this off.
	sumex==0	;meaningful only for Tenex.  If Sumex is on, you
			; use PSTIN for reading from terminal.  If off,
			; you use an Interlisp-styel[le]le simulation.
	srisw=0		;test first word of file to see if it is a line
			; number. else disable line number detection.
			; Because of SRI EMACS bug.
	kacpu==0	;if you change this, reassemble PASNUM.MAC
	klcpu==1	;if you change this, reassemble PASIO.MAC
	tops10==0

	t=0
	a=1
	b=2
	c=3
	d=4
	e=5
	f=6
	g=7
	h=10
	n=15
	o=16
	p=17

ife klcpu,< ;[6] start
	define adjstk (ac,off),<
	  ifl off, <sub ac,[xwd -off,-off]>
	  ifge off, <add ac,[xwd off,off]>>
	>
ifn klcpu,<
	define adjstk (ac,off),<
	  adjsp ac,off>
	> ;[6] end

; ERJMP
;   Used after jsys's that return +1 always.
;   Tops-20 - catches the error
;   Tenex - doesn't, but there isn't much we can do. No-op.
; ERJRST
;   Used after jsys's for which +1 is error return
;   Tops-20 - ERJMP, on the theory that this might trap a few
;		more errors
;   Tenex - JRST, usual Tenex error code

ifn tenex,< ;[5] start
	define erjrst (x),<
	  jrst x>
	>
ife tenex,<
	define erjrst (x),<
	  jump 16,x>
	> ;[5] end

	;DESCRIPTION OF FILEBLOCK( SEE WRITEMC)

	FILPTR== 0	;pointer to filcmp
	FILEOF== 1	;input: 0 == normal state
			;	1 == eof or error - no more data in file (some
			;	    errors will allow reading to continue, and
			;	    thus will NOT set FILEOF)
			;output:1 == normal state
			;	0 == error (but program will abort so this will
			;	     never show up)
	FILEOL== 2
	FILERR== 3	;RH - last error no, B0 - enabled for user errors
	filjfn==4	;jfn
	filspc==5	;pointer to block with file spec in it
	filflg==6	;flags
	filbad==7	;contents to set fileof to if error
	filcht==10	;pointer to character mapping table
	fils11==11
	fils12==12
	fils13==13
	fillts==14
	filbuf==15	;buffer for paged files:
			;LH == # of pages, RH == addr of first word on page
;filr11 through filr99 must be contiguous
	filr11==16	;first routine
	filget==16	;routine for GET
	filput==17	;routine for PUT
	filgln==20	;routine for GETLN
	filpln==21	;routine for PUTLN
	filclo==22	;device-dependent close actions - CLOSE and BREAK
	filr99==23	;pointer to other routines
	fils15==24	;another state variable
	fils16==25
	fils17==26	;26 - 30 are referred to absolutely in the string code
	fils20==27
	fils21==30
	FILLNR==31	;IF ASCII MODE - LINENR IN ASCIICHARACTERS
	FILCNT==32	;LH== if non-text file: neg. number of words in comp.
			;    if text file: zero
			;test sign bit of this loc to see if an ASCII file
			;RH== ADDRESS OF FIRST WORD IN COMPONENT
	filst1==33	;state variables for special I/O modes
	filst2==34
	filst3==35
	filst4==36
	filst5==37
	filtst==40	;should be 314157 if file is open
	filnam==41	;file name
	FILCMP==43	;FIRST WORD OF COMPONENT

;locations in dispatch vector pointed to by filr99
	f%getx==0	;getx
	f%putx==1	;putx
	f%putp==2	;page
	f%setp==3	;setpos
	f%curp==4	;curpos
	f%init==5	;device dependent init, or cpopj - this is BREAKIN
	f%open==6	;device dependent openfile
	f%brk==7	;device dependent BREAK routine
	f%ltst==10	;test for line numbered file
	f%shln==11	;show line
	f%fxln==12	;fix line
define vcall(x),<	;call routine via vector - uses a, fcb in b
	move a,filr99(b)	;get dispatch addr
	jrst @x(a)>
define pcall(x),<	;pushj routine via vector, uses a, fcb in b
	move a,filr99(b)
	pushj p,@x(a)>

;bits in filflg

	fl%lc==1	;map lower case
	fl%ioe==2	;i/o error
	fl%fme==4	;data format error
	fl%ope==10	;open error
	fl%eol==20	;show eoln char
;note that fl%tmp goes with the jfn, not the file openning.  So it is
;"sticky".  Even if the user reopens the file, if fl%tmp was on before,
;it is put back.  It is cleared by any gtjfn
	fl%tmp==40	;temp file (delete when doing rljfn)
	fl%buf==<point 6,0,29> ;amount of buffering (number or pages)
	fl%mod==<point 6,0,23> ;Pascal internal I/O mode
	  fm%byt==1	;bin/bout
	  fm%map==2	;pmap
	  fm%tty==3	;texti/bout
	  fm%nul==4	;popj
	  fm%wrd==5	;sin/sout 36 bit buffered - unidirectional
	  fm%chr==6	;sin/sout buffered - unidirectional
	  fm%rec==7	;sinr/soutr record
	  fm%lst==7	;last legal mode

;bits in LH(c) for open

	op%tty==1b0	;get file name from tty
	op%wld==1b1	;allow wildcards

define	skpwrt(x),<
 ife x,<skipe filbad(b)>
 ifn x,<skipe filbad(x)>
  >
define	skprea(x),<
 ife x,<skipn filbad(b)>
 ifn x,<skipn filbad(x)>
 >

	end