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TEXT memset(SB),$0
CLD
MOVQ RARG, DI
MOVBLZX c+8(FP), AX
MOVL n+16(FP), BX
/*
* if not enough bytes, just set bytes
*/
CMPL BX, $9
JLS c3
/*
* if not aligned, just set bytes
*/
MOVQ RARG, CX
ANDL $3,CX
JNE c3
/*
* build word in AX
*/
MOVB AL, AH
MOVL AX, CX
SHLL $16, CX
ORL CX, AX
/*
* set whole longs
*/
c1:
MOVQ BX, CX
SHRQ $2, CX
ANDL $3, BX
REP; STOSL
/*
* set the rest, by bytes
*/
c3:
MOVL BX, CX
REP; STOSB
ret:
MOVQ RARG,AX
RET
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