/*********************************************************************/

/* Copyright 2009, 2010 The University of Texas at Austin.           */

/* All rights reserved.                                              */

/*                                                                   */

/* Redistribution and use in source and binary forms, with or        */

/* without modification, are permitted provided that the following   */

/* conditions are met:                                               */

/*                                                                   */

/*   1. Redistributions of source code must retain the above         */

/*      copyright notice, this list of conditions and the following  */

/*      disclaimer.                                                  */

/*                                                                   */

/*   2. Redistributions in binary form must reproduce the above      */

/*      copyright notice, this list of conditions and the following  */

/*      disclaimer in the documentation and/or other materials       */

/*      provided with the distribution.                              */

/*                                                                   */

/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */

/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */

/*    INCLUDING, BUT  NOT LIMITED  TO, THE IMPLIED  WARRANTIES OF    */

/*    MERCHANTABILITY  AND FITNESS FOR  A PARTICULAR  PURPOSE ARE    */

/*    DISCLAIMED.  IN  NO EVENT SHALL THE UNIVERSITY  OF TEXAS AT    */

/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */

/*    INCIDENTAL,  SPECIAL, EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES    */

/*    (INCLUDING, BUT  NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE    */

/*    GOODS  OR  SERVICES; LOSS  OF  USE,  DATA,  OR PROFITS;  OR    */

/*    BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF    */

/*    LIABILITY, WHETHER  IN CONTRACT, STRICT  LIABILITY, OR TORT    */

/*    (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY WAY OUT    */

/*    OF  THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED  OF  THE    */

/*    POSSIBILITY OF SUCH DAMAGE.                                    */

/*                                                                   */

/* The views and conclusions contained in the software and           */

/* documentation are those of the authors and should not be          */

/* interpreted as representing official policies, either expressed   */

/* or implied, of The University of Texas at Austin.                 */

/*********************************************************************/

#define ASSEMBLER

#include "common.h"

#ifndef WINDOWS_ABI

#define M	ARG1

#define X	ARG4

#define INCX	ARG5

#else

#define M	ARG1

#define X	ARG2

#define INCX	ARG3

#endif

#define XX	%r10

#define I	%rax

#include "l1param.h"

	PROLOGUE

	PROFCODE

#ifdef WINDOWS_ABI

	movaps	%xmm3, %xmm0

	movsd	40(%rsp), %xmm1

	movq	48(%rsp), X

	movq	56(%rsp), INCX

#endif

	SAVEREGISTERS

	salq	$ZBASE_SHIFT, INCX

	testq	M, M

	jle	.L999

	pxor	%xmm15, %xmm15

	comisd	%xmm0, %xmm15

	jne	.L30		# Alpha_r != ZERO

	comisd	%xmm1, %xmm15

	jne	.L30		# Alpha_i != ZERO

/* Alpha == ZERO */

	cmpq	$2 * SIZE, INCX

	jne	.L20

	movq	M,  I

	sarq	$2, I

	jle	.L12

	ALIGN_4

.L11:

	movsd	%xmm1,  0 * SIZE(X)

	movsd	%xmm1,  1 * SIZE(X)

	movsd	%xmm1,  2 * SIZE(X)

	movsd	%xmm1,  3 * SIZE(X)

	movsd	%xmm1,  4 * SIZE(X)

	movsd	%xmm1,  5 * SIZE(X)

	movsd	%xmm1,  6 * SIZE(X)

	movsd	%xmm1,  7 * SIZE(X)

	addq	$8 * SIZE, X

	decq	I

	jg	.L11

	ALIGN_4

.L12:

	testq  $2, M

	je    .L14

	movsd	%xmm1,  0 * SIZE(X)

	movsd	%xmm1,  1 * SIZE(X)

	movsd	%xmm1,  2 * SIZE(X)

	movsd	%xmm1,  3 * SIZE(X)

	addq	$4 * SIZE, X

	ALIGN_3

.L14:

	testq  $1, M

	je    .L999

	movsd	%xmm1,  0 * SIZE(X)

	movsd	%xmm1,  1 * SIZE(X)

	addq	$2 * SIZE, X

	jmp	.L999

	ALIGN_4

.L20:

	movq	M,  I		# rcx = n

	sarq	$2, I

	jle	.L22

	ALIGN_4

.L21:

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	decq	I

	jg	.L21

	ALIGN_4

.L22:

	testq	$2, M

	je	.L23

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	addq	INCX, X

	ALIGN_3

.L23:

	testq	$1, M

	je	.L999

	movsd	%xmm1, 0 * SIZE(X)

	movsd	%xmm1, 1 * SIZE(X)

	jmp	.L999

	ALIGN_4

/* Alpha != ZERO */

.L30:

	movq	X, XX

	movq	M,  I

	sarq	$2, I

	jle	.L35

	movsd	 0 * SIZE(X), %xmm2

	movsd	 1 * SIZE(X), %xmm3

	addq	INCX, X

	movsd	 0 * SIZE(X), %xmm6

	movsd	 1 * SIZE(X), %xmm7

	addq	INCX, X

	movaps	%xmm2, %xmm4

	movsd	 0 * SIZE(X), %xmm8

	mulsd	%xmm0, %xmm2

	movaps	%xmm3, %xmm5

	movsd	 1 * SIZE(X), %xmm9

	mulsd	%xmm1, %xmm5

	addq	INCX, X

	mulsd	%xmm0, %xmm3

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm2

	movsd	 0 * SIZE(X), %xmm10

	addsd	%xmm4,  %xmm3

	movsd	 1 * SIZE(X), %xmm11

	movaps	%xmm6, %xmm4

	mulsd	%xmm0, %xmm6

	addq	INCX, X

	movaps	%xmm7, %xmm5

	mulsd	%xmm1, %xmm5

	mulsd	%xmm0, %xmm7

	mulsd	%xmm1, %xmm4

	decq	  I

	jle	  .L32

	ALIGN_4

.L31:

#ifdef PREFETCHW

	PREFETCHW (PREFETCHSIZE +  0) - PREOFFSET(X)

#endif

	subsd	%xmm5,  %xmm6

	movsd	%xmm2,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm7

	movsd	%xmm3,  1 * SIZE(XX)

	movaps	%xmm8, %xmm4

	movsd	 0 * SIZE(X), %xmm2

	mulsd	%xmm0, %xmm8

	addq	INCX, XX

	movaps	%xmm9, %xmm5

	movsd	 1 * SIZE(X), %xmm3

	mulsd	%xmm1, %xmm5

	addq	INCX, X

	mulsd	%xmm0, %xmm9

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm8

	movsd	%xmm6,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm9

	movsd	%xmm7,  1 * SIZE(XX)

	movaps	%xmm10, %xmm4

	movsd	0 * SIZE(X), %xmm6

	mulsd	%xmm0,  %xmm10

	addq	INCX, XX

	movaps	%xmm11, %xmm5

	movsd	1 * SIZE(X), %xmm7

	mulsd	%xmm1,  %xmm5

	addq	INCX, X

	mulsd	%xmm0,  %xmm11

	mulsd	%xmm1,  %xmm4

	subsd	%xmm5,  %xmm10

	movsd	%xmm8,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm11

	movsd	%xmm9,  1 * SIZE(XX)

	movaps	%xmm2, %xmm4

	movsd	0 * SIZE(X), %xmm8

	mulsd	%xmm0, %xmm2

	addq	INCX, XX

	movaps	%xmm3, %xmm5

	movsd	1 * SIZE(X), %xmm9

	mulsd	%xmm1, %xmm5

	addq	INCX, X

	mulsd	%xmm0, %xmm3

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm2

	movsd	%xmm10, 0 * SIZE(XX)

	addsd	%xmm4,  %xmm3

	movsd	%xmm11, 1 * SIZE(XX)

	movaps	%xmm6, %xmm4

 	movsd	0 * SIZE(X), %xmm10

	mulsd	%xmm0, %xmm6

	addq	INCX, XX

	movaps	%xmm7, %xmm5

	movsd	1 * SIZE(X), %xmm11

	mulsd	%xmm1, %xmm5

	addq	INCX, X

	mulsd	%xmm0, %xmm7

	mulsd	%xmm1, %xmm4

	decq	I

	jg	.L31

	ALIGN_4

.L32:

	subsd	%xmm5,  %xmm6

	movsd	%xmm2,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm7

	movsd	%xmm3,  1 * SIZE(XX)

	movaps	%xmm8, %xmm4

	mulsd	%xmm0, %xmm8

	addq	INCX, XX

	movaps	%xmm9, %xmm5

	mulsd	%xmm1, %xmm5

	mulsd	%xmm0, %xmm9

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm8

	movsd	%xmm6,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm9

	movsd	%xmm7,  1 * SIZE(XX)

	movaps	%xmm10, %xmm4

	mulsd	%xmm0,  %xmm10

	addq	INCX, XX

	movaps	%xmm11, %xmm5

	mulsd	%xmm1,  %xmm5

	mulsd	%xmm0,  %xmm11

	mulsd	%xmm1,  %xmm4

	subsd	%xmm5,  %xmm10

	movsd	%xmm8,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm11

	movsd	%xmm9,  1 * SIZE(XX)

	addq	INCX, XX

	movsd	%xmm10, 0 * SIZE(XX)

	movsd	%xmm11, 1 * SIZE(XX)

	addq	INCX, XX

	ALIGN_3

.L35:

	testq	$2, M

	je	.L37

	movsd	 0 * SIZE(X), %xmm2

	movsd	 1 * SIZE(X), %xmm3

	addq	INCX, X

	movaps	%xmm2, %xmm4

	movsd	 0 * SIZE(X), %xmm6

	mulsd	%xmm0, %xmm2

	movaps	%xmm3, %xmm5

	movsd	 1 * SIZE(X), %xmm7

	mulsd	%xmm1, %xmm5

	addq	INCX, X

	mulsd	%xmm0, %xmm3

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm2

	addsd	%xmm4,  %xmm3

	movaps	%xmm6, %xmm4

	mulsd	%xmm0, %xmm6

	movaps	%xmm7, %xmm5

	mulsd	%xmm1, %xmm5

	mulsd	%xmm0, %xmm7

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm6

	movsd	%xmm2,  0 * SIZE(XX)

	addsd	%xmm4,  %xmm7

	movsd	%xmm3,  1 * SIZE(XX)

	addq	INCX, XX

	movsd	%xmm6,  0 * SIZE(XX)

	movsd	%xmm7,  1 * SIZE(XX)

	addq	INCX, XX

	ALIGN_3

.L37:

	testq	$1, M

	je	.L999

	movsd	 0 * SIZE(X), %xmm2

	movsd	 1 * SIZE(X), %xmm3

	movaps	%xmm2, %xmm4

	mulsd	%xmm0, %xmm2

	movaps	%xmm3, %xmm5

	mulsd	%xmm1, %xmm5

	mulsd	%xmm0, %xmm3

	mulsd	%xmm1, %xmm4

	subsd	%xmm5,  %xmm2

	addsd	%xmm4,  %xmm3

	movsd	%xmm2,  0 * SIZE(XX)

	movsd	%xmm3,  1 * SIZE(XX)

	ALIGN_3

.L999:

	xorq	%rax, %rax

	RESTOREREGISTERS

	ret

	EPILOGUE