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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/mips/memccpy.s | |
Import sources from 2011-03-30 iso image
Diffstat (limited to 'sys/src/libc/mips/memccpy.s')
| -rwxr-xr-x | sys/src/libc/mips/memccpy.s | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/src/libc/mips/memccpy.s b/sys/src/libc/mips/memccpy.s new file mode 100755 index 000000000..776dd2768 --- /dev/null +++ b/sys/src/libc/mips/memccpy.s @@ -0,0 +1,20 @@ + TEXT memccpy(SB), $0 +MOVW R1, 0(FP) + MOVW n+12(FP), R1 + BEQ R1, ret + MOVW s1+0(FP), R3 + MOVW s2+4(FP), R2 + MOVBU c+11(FP), R4 + ADDU R1, R2, R5 + +l1: MOVBU (R2), R6 + ADDU $1, R2 + MOVBU R6, (R3) + ADDU $1, R3 + BEQ R4, R6, eq + BNE R2, R5, l1 + MOVW $0, R1 + RET + +eq: MOVW R3, R1 +ret: RET |