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Trailing-Edge - PDP-10 Archives - decus_20tap1_198111 - decus/20-0003/paslny.mac
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	title PASLNX - paslnk for rescan version of Pascal

	twoseg

	search monsym,pasunv

	extern resetf,clofil,quit
	entry pushf,popf,runlink,clribf,curnam

	reg==b
	reg1==c
	reg2==d
	reg3==e
	reg4==f
	reg5==g
	reg6==h
	p==17
	t==1
	t0==0

	reloc 0
oldf:	block filcmp+1
oldfen=.-1

	reloc 400000

pushf:	hrl t,reg		;copy old fcb
	hrri t,oldf
	blt t,oldfen
	pushj p,init.b##	;reinit the fcb
	setz a,			;text file
	seto reg3,		;[2] so we can see errors
	setzb reg4,reg5		;[2]
	movei reg6,30		;[2] let us see open errors and EOL char
	pushj p,resetf
	popj p,

popf:	push p,reg
	setz reg1,
	pushj p,clofil
	pop p,reg
	hrli t,oldf
	hrr t,reg
	blt t,filcmp(reg)
	popj p,

clribf:	movei a,.priin
	cfibf
	popj p,

runlink:movsi a,(gj%old!gj%sht)
	hrroi b,[asciz /sys:link.exe/]
	gtjfn
	  jrst quit
	move 17,a		;where to put jfn
	seto a,			;remove pages
	MOVSI	B,.FHSLF	; FREOM THIS FORK
	MOVE	C,[PM%CNT+1000]	; ALL 1000 PAGES
	MOVE	D,[RUNCOD,,10]	;MOVE REST OF CODE TO
	BLT	D,16		; ACS 10-16
	JRST	10		;DO IT THERE
RUNCOD:	PMAP			;DELETE ALL PAGES FROM MAP
	MOVSI	A,.FHSLF	;GET INTO THIS FORK
	HRR	A,17		;FROM THIS FILE
	GET			;GO GET IT
	MOVEI	A,.FHSLF	;OUR FORK
	GEVEC			;GET FORKS ENTRY VECTOR
	JRST	1(B)		;START FORK

;curname(file,string)
;  put current file spec into string
;b - FCB
;c - string addr
;d - string length

curnam:	addi d,4		;d _ string length in words
	idivi d,5
	move t0,[ascii /     /]	;now init string to blanks
	movem t0,(c)
	hrli a,(c)
	hrri a,1(c)
	add d,c
	blt a,-1(d)
	hrro a,c		;now do jfns
	hrrz b,filjfn(b)
	move c,[exp 111110000001] ;full file spec
	setz d,
	jfns
	movei t0,40		;put blank in over null at end
	idpb t0,a
	popj p,


if2,<	purge get>

	end