diff options
Diffstat (limited to 'sparc_netbsd_mach_dep.s')
| -rw-r--r-- | sparc_netbsd_mach_dep.s | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/sparc_netbsd_mach_dep.s b/sparc_netbsd_mach_dep.s new file mode 100644 index 00000000..14feb15e --- /dev/null +++ b/sparc_netbsd_mach_dep.s @@ -0,0 +1,34 @@ +! 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 |