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reedsolomon-go
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Asmfmt.

master
Klaus Post 2017-08-26 11:51:49 +02:00
parent c71640765a
commit 985e396eec
1 changed files with 14 additions and 16 deletions
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30
galois_amd64.s
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@ -163,26 +163,24 @@ done_avx2:
BYTE $0xc5; BYTE $0xf8; BYTE $0x77 // VZEROUPPER
RET
// func sSE2XorSlice(in, out []byte)
TEXT ·sSE2XorSlice(SB), 7, $0
MOVQ in+0(FP), SI // SI: &in
MOVQ in_len+8(FP), R9 // R9: len(in)
MOVQ out+24(FP), DX // DX: &out
SHRQ $4, R9 // len(in) / 16
CMPQ R9, $0
JEQ done_xor_sse2
MOVQ in+0(FP), SI // SI: &in
MOVQ in_len+8(FP), R9 // R9: len(in)
MOVQ out+24(FP), DX // DX: &out
SHRQ $4, R9 // len(in) / 16
CMPQ R9, $0
JEQ done_xor_sse2
loopback_xor_sse2:
MOVOU (SI), X0 // in[x]
MOVOU (DX), X1 // out[x]
PXOR X0, X1
MOVOU X1, (DX)
ADDQ $16, SI // in+=16
ADDQ $16, DX // out+=16
SUBQ $1, R9
JNZ loopback_xor_sse2
MOVOU (SI), X0 // in[x]
MOVOU (DX), X1 // out[x]
PXOR X0, X1
MOVOU X1, (DX)
ADDQ $16, SI // in+=16
ADDQ $16, DX // out+=16
SUBQ $1, R9
JNZ loopback_xor_sse2
done_xor_sse2:
RET