path: root/vendor/golang.org/x/crypto/curve25519/mul_amd64.s

// 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

#include "const_amd64.h"

// func mul(dest, a, b *[5]uint64)
TEXT ·mul(SB),0,$16-24
    MOVQ dest+0(FP), DI
    MOVQ a+8(FP), SI
    MOVQ b+16(FP), DX

    MOVQ DX,CX
    MOVQ 24(SI),DX
    IMUL3Q $19,DX,AX
    MOVQ AX,0(SP)
    MULQ 16(CX)
    MOVQ AX,R8
    MOVQ DX,R9
    MOVQ 32(SI),DX
    IMUL3Q $19,DX,AX
    MOVQ AX,8(SP)
    MULQ 8(CX)
    ADDQ AX,R8
    ADCQ DX,R9
    MOVQ 0(SI),AX
    MULQ 0(CX)
    ADDQ AX,R8
    ADCQ DX,R9
    MOVQ 0(SI),AX
    MULQ 8(CX)
    MOVQ AX,R10
    MOVQ DX,R11
    MOVQ 0(SI),AX
    MULQ 16(CX)
    MOVQ AX,R12
    MOVQ DX,R13
    MOVQ 0(SI),AX
    MULQ 24(CX)
    MOVQ AX,R14
    MOVQ DX,R15
    MOVQ 0(SI),AX
    MULQ 32(CX)
    MOVQ AX,BX
    MOVQ DX,BP
    MOVQ 8(SI),AX
    MULQ 0(CX)
    ADDQ AX,R10
    ADCQ DX,R11
    MOVQ 8(SI),AX
    MULQ 8(CX)
    ADDQ AX,R12
    ADCQ DX,R13
    MOVQ 8(SI),AX
    MULQ 16(CX)
    ADDQ AX,R14
    ADCQ DX,R15
    MOVQ 8(SI),AX
    MULQ 24(CX)
    ADDQ AX,BX
    ADCQ DX,BP
    MOVQ 8(SI),DX
    IMUL3Q $19,DX,AX
    MULQ 32(CX)
    ADDQ AX,R8
    ADCQ DX,R9
    MOVQ 16(SI),AX
    MULQ 0(CX)
    ADDQ AX,R12
    ADCQ DX,R13
    MOVQ 16(SI),AX
    MULQ 8(CX)
    ADDQ AX,R14
    ADCQ DX,R15
    MOVQ 16(SI),AX
    MULQ 16(CX)
    ADDQ AX,BX
    ADCQ DX,BP
    MOVQ 16(SI),DX
    IMUL3Q $19,DX,AX
    MULQ 24(CX)
    ADDQ AX,R8
    ADCQ DX,R9
    MOVQ 16(SI),DX
    IMUL3Q $19,DX,AX
    MULQ 32(CX)
    ADDQ AX,R10
    ADCQ DX,R11
    MOVQ 24(SI),AX
    MULQ 0(CX)
    ADDQ AX,R14
    ADCQ DX,R15
    MOVQ 24(SI),AX
    MULQ 8(CX)
    ADDQ AX,BX
    ADCQ DX,BP
    MOVQ 0(SP),AX
    MULQ 24(CX)
    ADDQ AX,R10
    ADCQ DX,R11
    MOVQ 0(SP),AX
    MULQ 32(CX)
    ADDQ AX,R12
    ADCQ DX,R13
    MOVQ 32(SI),AX
    MULQ 0(CX)
    ADDQ AX,BX
    ADCQ DX,BP
    MOVQ 8(SP),AX
    MULQ 16(CX)
    ADDQ AX,R10
    ADCQ DX,R11
    MOVQ 8(SP),AX
    MULQ 24(CX)
    ADDQ AX,R12
    ADCQ DX,R13
    MOVQ 8(SP),AX
    MULQ 32(CX)
    ADDQ AX,R14
    ADCQ DX,R15
    MOVQ $REDMASK51,SI
    SHLQ $13,R9:R8
    ANDQ SI,R8
    SHLQ $13,R11:R10
    ANDQ SI,R10
    ADDQ R9,R10
    SHLQ $13,R13:R12
    ANDQ SI,R12
    ADDQ R11,R12
    SHLQ $13,R15:R14
    ANDQ SI,R14
    ADDQ R13,R14
    SHLQ $13,BP:BX
    ANDQ SI,BX
    ADDQ R15,BX
    IMUL3Q $19,BP,DX
    ADDQ DX,R8
    MOVQ R8,DX
    SHRQ $51,DX
    ADDQ R10,DX
    MOVQ DX,CX
    SHRQ $51,DX
    ANDQ SI,R8
    ADDQ R12,DX
    MOVQ DX,R9
    SHRQ $51,DX
    ANDQ SI,CX
    ADDQ R14,DX
    MOVQ DX,AX
    SHRQ $51,DX
    ANDQ SI,R9
    ADDQ BX,DX
    MOVQ DX,R10
    SHRQ $51,DX
    ANDQ SI,AX
    IMUL3Q $19,DX,DX
    ADDQ DX,R8
    ANDQ SI,R10
    MOVQ R8,0(DI)
    MOVQ CX,8(DI)
    MOVQ R9,16(DI)
    MOVQ AX,24(DI)
    MOVQ R10,32(DI)
    RET