fumiama/unibase2n
1
0
Fork 0
mirror of https://github.com/fumiama/unibase2n.git synced 2026-06-10 11:40:25 +08:00
Code Activity

add amd64 asm ver enc16blk1

Browse Source
This commit is contained in:
源文雨
2022-10-02 22:49:06 +08:00
parent 95efd10a6d
commit f6d737d0a6
4 changed files with 97 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
encode_noasm.go Normal file
View File

@@ -0,0 +1,23 @@
//go:build !amd64
// +build !amd64
package unibase2n
import "encoding/binary"
// 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)
}
}