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

/* 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"

#define STACK	16

#define ARGS	 0

#define STACK_M		 4 + STACK + ARGS(%esp)

#define ALPHA		16 + STACK + ARGS(%esp)

#define STACK_X		24 + STACK + ARGS(%esp)

#define STACK_INCX	28 + STACK + ARGS(%esp)

#define STACK_Y		32 + STACK + ARGS(%esp)

#define STACK_INCY	36 + STACK + ARGS(%esp)

#define M	 %ebx

#define X	 %esi

#define Y	 %edi

#define INCX	 %ecx

#define INCY	 %edx

#define PREFETCHSIZE	 64

	PROLOGUE

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	pushl	%ebp

	PROFCODE

	movlpd	ALPHA, %xmm7

	unpcklpd %xmm7, %xmm7

	movl	STACK_M,    M

	movl	STACK_X,    X

	movl	STACK_INCX, INCX

	movl	STACK_Y,    Y

	movl	STACK_INCY, INCY

	leal	(, INCX, SIZE), INCX

	leal	(, INCY, SIZE), INCY

	testl	M, M

	jle	.L999

	cmpl	$SIZE, INCX

	jne	.L100

	cmpl	$SIZE, INCY

	jne	.L100

	testl	$SIZE, Y

	je	.L00

	movlpd	0 * SIZE(X), %xmm0

	mulsd	%xmm7, %xmm0

	addsd	0 * SIZE(Y), %xmm0

	movlpd	%xmm0, 0 * SIZE(Y)

	addl	$1 * SIZE, X

	addl	$1 * SIZE, Y

	decl	M

	jle	.L999

	ALIGN_3

.L00:

	testl	$SIZE, X

	jne	.L20

	movl	M,  %eax

	sarl	$4,  %eax

	jle	.L15

	ALIGN_3

.L11:

	prefetch     (PREFETCHSIZE + 0) * SIZE(X)

	movapd	 0 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movapd	 2 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	prefetchw      (PREFETCHSIZE + 0) * SIZE(Y)

	movapd	 4 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	 4 * SIZE(Y), %xmm2

	movapd	%xmm2,  4 * SIZE(Y)

	movapd	 6 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	 6 * SIZE(Y), %xmm3

	movapd	%xmm3,  6 * SIZE(Y)

	prefetch     (PREFETCHSIZE + 8) * SIZE(X)

	movapd	 8 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 8 * SIZE(Y), %xmm0

	movapd	%xmm0, 8 * SIZE(Y)

	movapd	10 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	10 * SIZE(Y), %xmm1

	movapd	%xmm1, 10 * SIZE(Y)

	prefetchw      (PREFETCHSIZE + 8) * SIZE(Y)

	movapd	12 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	12 * SIZE(Y), %xmm2

	movapd	%xmm2, 12 * SIZE(Y)

	movapd	14 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	14 * SIZE(Y), %xmm3

	movapd	%xmm3, 14 * SIZE(Y)

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	decl	%eax

	jg	.L11

	ALIGN_3

.L15:

	movl	M,  %eax

	testl	$8, %eax

	jle	.L16

	movapd	 0 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movapd	 2 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	movapd	 4 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	 4 * SIZE(Y), %xmm2

	movapd	%xmm2,  4 * SIZE(Y)

	movapd	 6 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	 6 * SIZE(Y), %xmm3

	movapd	%xmm3,  6 * SIZE(Y)

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	ALIGN_3

.L16:

	testl	$4, %eax

	jle	.L17

	movapd	 0 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movapd	 2 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	addl	$4 * SIZE, X

	addl	$4 * SIZE, Y

	ALIGN_3

.L17:

	testl	$2, %eax

	jle	.L18

	movapd	 0 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	ALIGN_3

.L18:

	testl	$1, %eax

	jle	.L99

	movlpd	0 * SIZE(X), %xmm0

	mulsd	%xmm7, %xmm0

	addsd	0 * SIZE(Y), %xmm0

	movlpd	%xmm0, 	0 * SIZE(Y)

	jmp	.L99

	ALIGN_3

.L20:

	movl	M, %eax

	sarl	$4,   %eax

	jle	.L25

	ALIGN_4

.L21:

#ifdef OPTERON

	prefetcht0     (PREFETCHSIZE + 0) * SIZE(X)

	prefetchw      (PREFETCHSIZE + 0) * SIZE(Y)

#endif

	movlpd	 0 * SIZE(X), %xmm0

	movhpd	 1 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movlpd	 2 * SIZE(X), %xmm1

	movhpd	 3 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	movlpd	 4 * SIZE(X), %xmm2

	movhpd	 5 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	 4 * SIZE(Y), %xmm2

	movapd	%xmm2,  4 * SIZE(Y)

	movlpd	 6 * SIZE(X), %xmm3

	movhpd	 7 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	 6 * SIZE(Y), %xmm3

	movapd	%xmm3,  6 * SIZE(Y)

#ifdef OPTERON

	prefetcht0     (PREFETCHSIZE + 8) * SIZE(X)

	prefetchw      (PREFETCHSIZE + 8) * SIZE(Y)

#endif

	movlpd	 8 * SIZE(X), %xmm0

	movhpd	 9 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 8 * SIZE(Y), %xmm0

	movapd	%xmm0, 8 * SIZE(Y)

	movlpd	10 * SIZE(X), %xmm1

	movhpd	11 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	10 * SIZE(Y), %xmm1

	movapd	%xmm1, 10 * SIZE(Y)

	movlpd	12 * SIZE(X), %xmm2

	movhpd	13 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	12 * SIZE(Y), %xmm2

	movapd	%xmm2, 12 * SIZE(Y)

	movlpd	14 * SIZE(X), %xmm3

	movhpd	15 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	14 * SIZE(Y), %xmm3

	movapd	%xmm3, 14 * SIZE(Y)

	addl	$16 * SIZE, X

	addl	$16 * SIZE, Y

	decl	%eax

	jg	.L21

	ALIGN_3

.L25:

	movl	M,  %eax

	testl	$8, %eax

	jle	.L26

	movlpd	 0 * SIZE(X), %xmm0

	movhpd	 1 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movlpd	 2 * SIZE(X), %xmm1

	movhpd	 3 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	movlpd	 4 * SIZE(X), %xmm2

	movhpd	 5 * SIZE(X), %xmm2

	mulpd	%xmm7, %xmm2

	addpd	 4 * SIZE(Y), %xmm2

	movapd	%xmm2,  4 * SIZE(Y)

	movlpd	 6 * SIZE(X), %xmm3

	movhpd	 7 * SIZE(X), %xmm3

	mulpd	%xmm7, %xmm3

	addpd	 6 * SIZE(Y), %xmm3

	movapd	%xmm3,  6 * SIZE(Y)

	addl	$8 * SIZE, X

	addl	$8 * SIZE, Y

	ALIGN_3

.L26:

	testl	$4, %eax

	jle	.L27

	movlpd	 0 * SIZE(X), %xmm0

	movhpd	 1 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	movlpd	 2 * SIZE(X), %xmm1

	movhpd	 3 * SIZE(X), %xmm1

	mulpd	%xmm7, %xmm1

	addpd	 2 * SIZE(Y), %xmm1

	movapd	%xmm1,  2 * SIZE(Y)

	addl	$4 * SIZE, X

	addl	$4 * SIZE, Y

	ALIGN_3

.L27:

	testl	$2, %eax

	jle	.L28

	movlpd	 0 * SIZE(X), %xmm0

	movhpd	 1 * SIZE(X), %xmm0

	mulpd	%xmm7, %xmm0

	addpd	 0 * SIZE(Y), %xmm0

	movapd	%xmm0,  0 * SIZE(Y)

	addl	$2 * SIZE, X

	addl	$2 * SIZE, Y

	ALIGN_3

.L28:

	testl	$1, %eax

	jle	.L99

	movlpd	0 * SIZE(X), %xmm0

	mulsd	%xmm7, %xmm0

	addsd	0 * SIZE(Y), %xmm0

	movlpd	%xmm0, 	0 * SIZE(Y)

	ALIGN_3

.L99:

	xorl	%eax,%eax

	popl	%ebp

	popl	%ebx

	popl	%esi

	popl	%edi

	ret

	ALIGN_3

.L100:

	movl	M, %eax

	movl	Y, %ebp

	sarl	$3,   %eax

	jle	.L114

	ALIGN_3

.L110:

	movlpd	0 * SIZE(X), %xmm0

	addl	INCX, X

	movhpd	0 * SIZE(X), %xmm0

	addl	INCX, X

	mulpd	%xmm7, %xmm0

	movlpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	movhpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	addpd	%xmm6, %xmm0

	movlpd	0 * SIZE(X), %xmm1

	addl	INCX, X

	movhpd	0 * SIZE(X), %xmm1

	addl	INCX, X

	mulpd	%xmm7, %xmm1

	movlpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	movhpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	addpd	%xmm6, %xmm1

	movlpd	0 * SIZE(X), %xmm2

	addl	INCX, X

	movhpd	0 * SIZE(X), %xmm2

	addl	INCX, X

	mulpd	%xmm7, %xmm2

	movlpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	movhpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	addpd	%xmm6, %xmm2

	movlpd	0 * SIZE(X), %xmm3

	addl	INCX, X

	movhpd	0 * SIZE(X), %xmm3

	addl	INCX, X

	mulpd	%xmm7, %xmm3

	movlpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	movhpd	0 * SIZE(%ebp), %xmm6

	addl	INCY, %ebp

	addpd	%xmm6, %xmm3

	movlpd	%xmm0, 0 * SIZE(Y)

	addl	INCY, Y

	movhpd	%xmm0, 0 * SIZE(Y)

	addl	INCY, Y

	movlpd	%xmm1, 0 * SIZE(Y)

	addl	INCY, Y

	movhpd	%xmm1, 0 * SIZE(Y)

	addl	INCY, Y

	movlpd	%xmm2, 0 * SIZE(Y)

	addl	INCY, Y

	movhpd	%xmm2, 0 * SIZE(Y)

	addl	INCY, Y

	movlpd	%xmm3, 0 * SIZE(Y)

	addl	INCY, Y

	movhpd	%xmm3, 0 * SIZE(Y)

	addl	INCY, Y

	decl	%eax

	jg	.L110

	ALIGN_3

.L114:

	movl	M, %eax

	andl	$7,   %eax

	jle	.L999

	ALIGN_3

.L115:

	movlpd	(X), %xmm0

	addl	INCX, X

	mulsd	%xmm7, %xmm0

	addsd	(Y), %xmm0

	movlpd	%xmm0, (Y)

	addl	INCY, Y

	decl	%eax

	jg	.L115

	ALIGN_3

.L999:

	xorl	%eax,%eax

	popl	%ebp

	popl	%ebx

	popl	%esi

	popl	%edi

	ret

	EPILOGUE