xref: /plan9/sys/src/ape/lib/ap/arm/setjmp.s (revision 2ddf2468114832cf7379e5290d3756505dc39637)
1arg=0
2link=14
3sp=13
4
5TEXT	setjmp(SB), 1, $-4
6	MOVW	R(sp), (R(arg+0))
7	MOVW	R(link), 4(R(arg+0))
8	MOVW	$0, R0
9	RET
10
11TEXT	sigsetjmp(SB), 1, $-4
12	MOVW	savemask+4(FP), R(arg+2)
13	MOVW	R(arg+2), 0(R(arg+0))
14	MOVW	$_psigblocked(SB), R(arg+2)
15	MOVW	R2, 4(R(arg+0))
16	MOVW	R(sp), 8(R(arg+0))
17	MOVW	R(link), 12(R(arg+0))
18	MOVW	$0, R(arg+0)
19	RET
20
21TEXT	longjmp(SB), 1, $-4
22	MOVW	r+4(FP), R(arg+2)
23	CMP	$0, R(arg+2)
24	BNE	ok			/* ansi: "longjmp(0) => longjmp(1)" */
25	MOVW	$1, R(arg+2)		/* bless their pointed heads */
26ok:	MOVW	(R(arg+0)), R(sp)
27	MOVW	4(R(arg+0)), R(link)
28	MOVW	R(arg+2), R(arg+0)
29	RET
30