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| author | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
|---|---|---|
| committer | Taru Karttunen <taruti@taruti.net> | 2011-03-30 15:46:40 +0300 |
| commit | e5888a1ffdae813d7575f5fb02275c6bb07e5199 (patch) | |
| tree | d8d51eac403f07814b9e936eed0c9a79195e2450 /sys/src/libc/arm/setjmp.s | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/libc/arm/setjmp.s')
| -rwxr-xr-x | sys/src/libc/arm/setjmp.s | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/src/libc/arm/setjmp.s b/sys/src/libc/arm/setjmp.s new file mode 100755 index 000000000..64bdc2196 --- /dev/null +++ b/sys/src/libc/arm/setjmp.s @@ -0,0 +1,19 @@ +arg=0 +link=14 +sp=13 + +TEXT setjmp(SB), 1, $-4 + MOVW R(sp), (R(arg+0)) + MOVW R(link), 4(R(arg+0)) + MOVW $0, R0 + RET + +TEXT longjmp(SB), 1, $-4 + MOVW r+4(FP), R(arg+2) + CMP $0, R(arg+2) + BNE ok /* ansi: "longjmp(0) => longjmp(1)" */ + MOVW $1, R(arg+2) /* bless their pointed heads */ +ok: MOVW (R(arg+0)), R(sp) + MOVW 4(R(arg+0)), R(link) + MOVW R(arg+2), R(arg+0) + RET |