Text file src/pkg/vendor/golang.org/x/crypto/curve25519/cswap_amd64.s
1 // Copyright 2012 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4
5 // +build amd64,!gccgo,!appengine
6
7 // func cswap(inout *[4][5]uint64, v uint64)
8 TEXT ·cswap(SB),7,$0
9 MOVQ inout+0(FP),DI
10 MOVQ v+8(FP),SI
11
12 SUBQ $1, SI
13 NOTQ SI
14 MOVQ SI, X15
15 PSHUFD $0x44, X15, X15
16
17 MOVOU 0(DI), X0
18 MOVOU 16(DI), X2
19 MOVOU 32(DI), X4
20 MOVOU 48(DI), X6
21 MOVOU 64(DI), X8
22 MOVOU 80(DI), X1
23 MOVOU 96(DI), X3
24 MOVOU 112(DI), X5
25 MOVOU 128(DI), X7
26 MOVOU 144(DI), X9
27
28 MOVO X1, X10
29 MOVO X3, X11
30 MOVO X5, X12
31 MOVO X7, X13
32 MOVO X9, X14
33
34 PXOR X0, X10
35 PXOR X2, X11
36 PXOR X4, X12
37 PXOR X6, X13
38 PXOR X8, X14
39 PAND X15, X10
40 PAND X15, X11
41 PAND X15, X12
42 PAND X15, X13
43 PAND X15, X14
44 PXOR X10, X0
45 PXOR X10, X1
46 PXOR X11, X2
47 PXOR X11, X3
48 PXOR X12, X4
49 PXOR X12, X5
50 PXOR X13, X6
51 PXOR X13, X7
52 PXOR X14, X8
53 PXOR X14, X9
54
55 MOVOU X0, 0(DI)
56 MOVOU X2, 16(DI)
57 MOVOU X4, 32(DI)
58 MOVOU X6, 48(DI)
59 MOVOU X8, 64(DI)
60 MOVOU X1, 80(DI)
61 MOVOU X3, 96(DI)
62 MOVOU X5, 112(DI)
63 MOVOU X7, 128(DI)
64 MOVOU X9, 144(DI)
65 RET
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