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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/power/memccpy.s | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/libc/power/memccpy.s')
| -rwxr-xr-x | sys/src/libc/power/memccpy.s | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sys/src/libc/power/memccpy.s b/sys/src/libc/power/memccpy.s new file mode 100755 index 000000000..4a4a34449 --- /dev/null +++ b/sys/src/libc/power/memccpy.s @@ -0,0 +1,23 @@ + TEXT memccpy(SB), $0 +#define BDNZ BC 16,0, + MOVW R3, s1+0(FP) + MOVW n+12(FP), R7 + MOVW s2+4(FP), R4 + MOVBZ c+11(FP), R5 + CMP R7, $0 + BEQ nf + MOVW R7, CTR + SUB $1, R3 + SUB $1, R4 +l1: + MOVBZU 1(R4), R6 + CMP R6, R5 + MOVBZU R6, 1(R3) + BEQ eq + BDNZ l1 +nf: + MOVW $0, R3 + RETURN +eq: + ADD $1, R3 + RETURN |