aboutsummaryrefslogtreecommitdiff
path: root/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/crypto/curve25519/freeze_amd64.s')
-rw-r--r--vendor/golang.org/x/crypto/curve25519/freeze_amd64.s94
1 files changed, 94 insertions, 0 deletions
diff --git a/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s b/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
new file mode 100644
index 0000000..37599fa
--- /dev/null
+++ b/vendor/golang.org/x/crypto/curve25519/freeze_amd64.s
@@ -0,0 +1,94 @@
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This code was translated into a form compatible with 6a from the public
+// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
+
+// +build amd64,!gccgo,!appengine
+
+// func freeze(inout *[5]uint64)
+TEXT ·freeze(SB),7,$96-8
+ MOVQ inout+0(FP), DI
+
+ MOVQ SP,R11
+ MOVQ $31,CX
+ NOTQ CX
+ ANDQ CX,SP
+ ADDQ $32,SP
+
+ MOVQ R11,0(SP)
+ MOVQ R12,8(SP)
+ MOVQ R13,16(SP)
+ MOVQ R14,24(SP)
+ MOVQ R15,32(SP)
+ MOVQ BX,40(SP)
+ MOVQ BP,48(SP)
+ MOVQ 0(DI),SI
+ MOVQ 8(DI),DX
+ MOVQ 16(DI),CX
+ MOVQ 24(DI),R8
+ MOVQ 32(DI),R9
+ MOVQ ·REDMASK51(SB),AX
+ MOVQ AX,R10
+ SUBQ $18,R10
+ MOVQ $3,R11
+REDUCELOOP:
+ MOVQ SI,R12
+ SHRQ $51,R12
+ ANDQ AX,SI
+ ADDQ R12,DX
+ MOVQ DX,R12
+ SHRQ $51,R12
+ ANDQ AX,DX
+ ADDQ R12,CX
+ MOVQ CX,R12
+ SHRQ $51,R12
+ ANDQ AX,CX
+ ADDQ R12,R8
+ MOVQ R8,R12
+ SHRQ $51,R12
+ ANDQ AX,R8
+ ADDQ R12,R9
+ MOVQ R9,R12
+ SHRQ $51,R12
+ ANDQ AX,R9
+ IMUL3Q $19,R12,R12
+ ADDQ R12,SI
+ SUBQ $1,R11
+ JA REDUCELOOP
+ MOVQ $1,R12
+ CMPQ R10,SI
+ CMOVQLT R11,R12
+ CMPQ AX,DX
+ CMOVQNE R11,R12
+ CMPQ AX,CX
+ CMOVQNE R11,R12
+ CMPQ AX,R8
+ CMOVQNE R11,R12
+ CMPQ AX,R9
+ CMOVQNE R11,R12
+ NEGQ R12
+ ANDQ R12,AX
+ ANDQ R12,R10
+ SUBQ R10,SI
+ SUBQ AX,DX
+ SUBQ AX,CX
+ SUBQ AX,R8
+ SUBQ AX,R9
+ MOVQ SI,0(DI)
+ MOVQ DX,8(DI)
+ MOVQ CX,16(DI)
+ MOVQ R8,24(DI)
+ MOVQ R9,32(DI)
+ MOVQ 0(SP),R11
+ MOVQ 8(SP),R12
+ MOVQ 16(SP),R13
+ MOVQ 24(SP),R14
+ MOVQ 32(SP),R15
+ MOVQ 40(SP),BX
+ MOVQ 48(SP),BP
+ MOVQ R11,SP
+ MOVQ DI,AX
+ MOVQ SI,DX
+ RET