1!	SPARCompiler 3.0 and later apparently no longer handles
2!	asm outside functions.  So we need a separate .s file
3!	This is only set up for SunOS 5, not SunOS 4.
4!	Assumes this is called before the stack contents are
5!	examined.
6
7	.seg 	"text"
8	.globl	GC_save_regs_in_stack
9	.globl 	GC_push_regs
10GC_save_regs_in_stack:
11#if defined(__arch64__) || defined(__sparcv9)
12	save	%sp,-128,%sp
13	flushw
14	ret
15	  restore %sp,2047+128,%o0
16#else /* 32 bit SPARC */
17	ta	0x3   ! ST_FLUSH_WINDOWS
18	mov	%sp,%o0
19	retl
20	nop
21#endif /* 32 bit SPARC */
22.GC_save_regs_in_stack_end:
23	.size GC_save_regs_in_stack,.GC_save_regs_in_stack_end-GC_save_regs_in_stack
24
25
26! GC_clear_stack_inner(arg, limit) clears stack area up to limit and
27! returns arg.  Stack clearing is crucial on SPARC, so we supply
28! an assembly version that s more careful.  Assumes limit is hotter
29! than sp, and limit is 8 byte aligned.
30	.globl	GC_clear_stack_inner
31GC_clear_stack_inner:
32#if defined(__arch64__) || defined(__sparcv9)
33	mov %sp,%o2		! Save sp
34	add %sp,2047-8,%o3	! p = sp+bias-8
35	add %o1,-2047-192,%sp	! Move sp out of the way,
36  				! so that traps still work.
37  				! Includes some extra words
38  				! so we can be sloppy below.
39loop:
40	stx %g0,[%o3]		! *(long *)p = 0
41	cmp %o3,%o1
42	bgu,pt %xcc, loop	! if (p > limit) goto loop
43          add %o3,-8,%o3	! p -= 8 (delay slot)
44	retl
45    	  mov %o2,%sp		! Restore sp., delay slot
46#else  /* 32 bit SPARC */
47	mov	%sp,%o2		! Save sp
48	add	%sp,-8,%o3	! p = sp-8
49	clr	%g1		! [g0,g1] = 0
50	add	%o1,-0x60,%sp	! Move sp out of the way,
51				! so that traps still work.
52				! Includes some extra words
53				! so we can be sloppy below.
54loop:
55	std	%g0,[%o3]	! *(long long *)p = 0
56	cmp	%o3,%o1
57	bgu	loop		! if (p > limit) goto loop
58	  add	%o3,-8,%o3	! p -= 8 (delay slot)
59	retl
60	  mov	%o2,%sp		! Restore sp., delay slot
61#endif  /* 32 bit SPARC */
62.GC_clear_stack_inner_end:
63      	.size GC_clear_stack_inner,.GC_clear_stack_inner_end-GC_clear_stack_inner
64
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