35 lines
907 B
ArmAsm
35 lines
907 B
ArmAsm
! 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
|