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- ! SPARCompiler 3.0 and later apparently no longer handles
- ! asm outside functions. So we need a separate .s file
- ! This is only set up for SunOS 4.
- ! Assumes this is called before the stack contents are
- ! examined.
- #include "machine/asm.h"
- .seg "text"
- .globl _C_LABEL(GC_save_regs_in_stack)
- .globl _C_LABEL(GC_push_regs)
- _C_LABEL(GC_save_regs_in_stack):
- _C_LABEL(GC_push_regs):
- ta 0x3 ! ST_FLUSH_WINDOWS
- mov %sp,%o0
- retl
- nop
-
- .globl _C_LABEL(GC_clear_stack_inner)
- _C_LABEL(GC_clear_stack_inner):
- mov %sp,%o2 ! Save sp
- add %sp,-8,%o3 ! p = sp-8
- clr %g1 ! [g0,g1] = 0
- add %o1,-0x60,%sp ! Move sp out of the way,
- ! so that traps still work.
- ! Includes some extra words
- ! so we can be sloppy below.
- loop:
- std %g0,[%o3] ! *(long long *)p = 0
- cmp %o3,%o1
- bgu loop ! if (p > limit) goto loop
- add %o3,-8,%o3 ! p -= 8 (delay slot)
- retl
- mov %o2,%sp ! Restore sp., delay slot
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