path: root/vendor/golang.org/x/crypto/curve25519/square_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: https://bench.cr.yp.to/supercop.html

// +build amd64,!gccgo,!appengine

#include "const_amd64.h"

// func square(out, in *[5]uint64)
TEXT ·square(SB),7,$0-16
    MOVQ out+0(FP), DI
    MOVQ in+8(FP), SI

    MOVQ 0(SI),AX
    MULQ 0(SI)
    MOVQ AX,CX
    MOVQ DX,R8
    MOVQ 0(SI),AX
    SHLQ $1,AX
    MULQ 8(SI)
    MOVQ AX,R9
    MOVQ DX,R10
    MOVQ 0(SI),AX
    SHLQ $1,AX
    MULQ 16(SI)
    MOVQ AX,R11
    MOVQ DX,R12
    MOVQ 0(SI),AX
    SHLQ $1,AX
    MULQ 24(SI)
    MOVQ AX,R13
    MOVQ DX,R14
    MOVQ 0(SI),AX
    SHLQ $1,AX
    MULQ 32(SI)
    MOVQ AX,R15
    MOVQ DX,BX
    MOVQ 8(SI),AX
    MULQ 8(SI)
    ADDQ AX,R11
    ADCQ DX,R12
    MOVQ 8(SI),AX
    SHLQ $1,AX
    MULQ 16(SI)
    ADDQ AX,R13
    ADCQ DX,R14
    MOVQ 8(SI),AX
    SHLQ $1,AX
    MULQ 24(SI)
    ADDQ AX,R15
    ADCQ DX,BX
    MOVQ 8(SI),DX
    IMUL3Q $38,DX,AX
    MULQ 32(SI)
    ADDQ AX,CX
    ADCQ DX,R8
    MOVQ 16(SI),AX
    MULQ 16(SI)
    ADDQ AX,R15
    ADCQ DX,BX
    MOVQ 16(SI),DX
    IMUL3Q $38,DX,AX
    MULQ 24(SI)
    ADDQ AX,CX
    ADCQ DX,R8
    MOVQ 16(SI),DX
    IMUL3Q $38,DX,AX
    MULQ 32(SI)
    ADDQ AX,R9
    ADCQ DX,R10
    MOVQ 24(SI),DX
    IMUL3Q $19,DX,AX
    MULQ 24(SI)
    ADDQ AX,R9
    ADCQ DX,R10
    MOVQ 24(SI),DX
    IMUL3Q $38,DX,AX
    MULQ 32(SI)
    ADDQ AX,R11
    ADCQ DX,R12
    MOVQ 32(SI),DX
    IMUL3Q $19,DX,AX
    MULQ 32(SI)
    ADDQ AX,R13
    ADCQ DX,R14
    MOVQ $REDMASK51,SI
    SHLQ $13,R8:CX
    ANDQ SI,CX
    SHLQ $13,R10:R9
    ANDQ SI,R9
    ADDQ R8,R9
    SHLQ $13,R12:R11
    ANDQ SI,R11
    ADDQ R10,R11
    SHLQ $13,R14:R13
    ANDQ SI,R13
    ADDQ R12,R13
    SHLQ $13,BX:R15
    ANDQ SI,R15
    ADDQ R14,R15
    IMUL3Q $19,BX,DX
    ADDQ DX,CX
    MOVQ CX,DX
    SHRQ $51,DX
    ADDQ R9,DX
    ANDQ SI,CX
    MOVQ DX,R8
    SHRQ $51,DX
    ADDQ R11,DX
    ANDQ SI,R8
    MOVQ DX,R9
    SHRQ $51,DX
    ADDQ R13,DX
    ANDQ SI,R9
    MOVQ DX,AX
    SHRQ $51,DX
    ADDQ R15,DX
    ANDQ SI,AX
    MOVQ DX,R10
    SHRQ $51,DX
    IMUL3Q $19,DX,DX
    ADDQ DX,CX
    ANDQ SI,R10
    MOVQ CX,0(DI)
    MOVQ R8,8(DI)
    MOVQ R9,16(DI)
    MOVQ AX,24(DI)
    MOVQ R10,32(DI)
    RET