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(root)/os/branches/feature-vt/sys/src/libc/mips/memccpy.s – Rev 98

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        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