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add amd64 asm ver enc16blk1

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源文雨
2022-10-02 22:49:06 +08:00
parent 95efd10a6d
commit f6d737d0a6
4 changed files with 97 additions and 17 deletions
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17
encode.go
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@@ -36,23 +36,6 @@ func (bs Base) Encode(data []byte) (out []byte) {
return
}
// enc16blk1 for bit 1 (actual enc128blk1)
// len(in)!=0, len(out)==len(in)*16
//go:nosplit
func enc16blk1(mask uint16, in, out []byte) {
for i, n := range in {
c := i * 16
binary.BigEndian.PutUint16(out[c:c+2], uint16(n>>7)+mask)
binary.BigEndian.PutUint16(out[c+2:c+4], uint16(n>>6&1)+mask)
binary.BigEndian.PutUint16(out[c+4:c+6], uint16(n>>5&1)+mask)
binary.BigEndian.PutUint16(out[c+6:c+8], uint16(n>>4&1)+mask)
binary.BigEndian.PutUint16(out[c+8:c+10], uint16(n>>3&1)+mask)
binary.BigEndian.PutUint16(out[c+10:c+12], uint16(n>>2&1)+mask)
binary.BigEndian.PutUint16(out[c+12:c+14], uint16(n>>1&1)+mask)
binary.BigEndian.PutUint16(out[c+14:c+16], uint16(n&1)+mask)
}
}
// enc64blk2 for bit 2
// len(in)!=0, len(out)==len(in)*8
//go:nosplit