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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/sparc/memccpy.s | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/libc/sparc/memccpy.s')
| -rwxr-xr-x | sys/src/libc/sparc/memccpy.s | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/sys/src/libc/sparc/memccpy.s b/sys/src/libc/sparc/memccpy.s new file mode 100755 index 000000000..a2ebd7d11 --- /dev/null +++ b/sys/src/libc/sparc/memccpy.s @@ -0,0 +1,27 @@ + TEXT memccpy(SB), $0 + +MOVW R7, 0(FP) + MOVW n+12(FP), R7 + SUBCC R0,R7, R0 + BE ret + MOVW s1+0(FP), R9 + MOVW s2+4(FP), R8 + MOVBU c+11(FP), R10 + ADD R7,R8, R11 + +l1: MOVBU (R8), R12 + ADD $1, R8 + MOVBU R12, (R9) + ADD $1, R9 + SUBCC R10,R12, R0 + BE eq + SUBCC R8,R11, R0 + BNE l1 + MOVW R0, R7 + RETURN + +eq: + MOVW R9, R7 + +ret: + RETURN |