ref: 0bd16830c02c4f3567f9fbf6e788c21a97cc1b39
dir: /memsetl-amd64.s/
TEXT _memsetl(SB),1,$0 CLD MOVQ RARG, DI MOVL c+8(FP), AX MOVQ n+16(FP), CX /* if not a multiple of 2, do longs at a time */ MOVQ CX, BX ANDQ $1, BX JNE longs /* set whole vlongs */ MOVL AX, BX SHLQ $32, BX ORQ BX, AX SHRQ $1, CX REP; STOSQ RET longs: REP; STOSL RET