mirror of
https://github.com/fumiama/unibase2n.git
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24 lines
777 B
Go
24 lines
777 B
Go
//go:build !amd64
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// +build !amd64
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package unibase2n
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import "encoding/binary"
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// enc16blk1 for bit 1 (actual enc128blk1)
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// len(in)!=0, len(out)==len(in)*16
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//go:nosplit
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func enc16blk1(mask uint16, in, out []byte) {
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for i, n := range in {
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c := i * 16
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binary.BigEndian.PutUint16(out[c:c+2], uint16(n>>7)+mask)
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binary.BigEndian.PutUint16(out[c+2:c+4], uint16(n>>6&1)+mask)
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binary.BigEndian.PutUint16(out[c+4:c+6], uint16(n>>5&1)+mask)
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binary.BigEndian.PutUint16(out[c+6:c+8], uint16(n>>4&1)+mask)
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binary.BigEndian.PutUint16(out[c+8:c+10], uint16(n>>3&1)+mask)
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binary.BigEndian.PutUint16(out[c+10:c+12], uint16(n>>2&1)+mask)
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binary.BigEndian.PutUint16(out[c+12:c+14], uint16(n>>1&1)+mask)
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binary.BigEndian.PutUint16(out[c+14:c+16], uint16(n&1)+mask)
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}
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}
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