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

/* 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	 8

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

#define STACK_N	 8 + STACK + ARGS(%esp)

#define STACK_A	12 + STACK + ARGS(%esp)

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

#define STACK_B	20 + STACK + ARGS(%esp)

#define I	%eax

#define J	%ecx

#define LDA	%edx

#define A	%edi

#define A1	%ebx

#define A2	%ebp

#define B	%esi

	PROLOGUE

	subl	$ARGS, %esp

	pushl	%ebp

	pushl	%edi

	pushl	%esi

	pushl	%ebx

	PROFCODE

	EMMS

	movl	STACK_A,   A

	movl	STACK_LDA, LDA

	movl	STACK_B, B

	sall	$ZBASE_SHIFT, LDA

	movl	STACK_N,  J

	sarl	$1, J

	je	.L20

	ALIGN_3

.L21:

	movl	A, A1

	leal    (A1, LDA), A2

	leal	(A,  LDA, 2), A

	movl	STACK_M,   I

	sarl	$1,  I

	je	.L24

	ALIGN_3

.L25:

#ifdef HAVE_MMX

	MMXLOAD		0 * SIZE(A1), %mm0

	MMXLOAD		1 * SIZE(A1), %mm1

	MMXLOAD		0 * SIZE(A2), %mm2

	MMXLOAD		1 * SIZE(A2), %mm3

	MMXLOAD		2 * SIZE(A1), %mm4

	MMXLOAD		3 * SIZE(A1), %mm5

	MMXLOAD		2 * SIZE(A2), %mm6

	MMXLOAD		3 * SIZE(A2), %mm7

	MMXSTORE	%mm0, 0 * SIZE(B)

	MMXSTORE	%mm1, 1 * SIZE(B)

	MMXSTORE	%mm2, 2 * SIZE(B)

	MMXSTORE	%mm3, 3 * SIZE(B)

	MMXSTORE	%mm4, 4 * SIZE(B)

	MMXSTORE	%mm5, 5 * SIZE(B)

	MMXSTORE	%mm6, 6 * SIZE(B)

	MMXSTORE	%mm7, 7 * SIZE(B)

#else

	FLD	3 * SIZE(A2)

	FLD	2 * SIZE(A2)

	FLD	3 * SIZE(A1)

	FLD	2 * SIZE(A1)

	FLD	1 * SIZE(A2)

	FLD	0 * SIZE(A2)

	FLD	1 * SIZE(A1)

	FLD	0 * SIZE(A1)

	FST	0 * SIZE(B)

	FST	1 * SIZE(B)

	FST	2 * SIZE(B)

	FST	3 * SIZE(B)

	FST	4 * SIZE(B)

	FST	5 * SIZE(B)

	FST	6 * SIZE(B)

	FST	7 * SIZE(B)

#endif

	addl	$4 * SIZE, A1

	addl	$4 * SIZE, A2

	addl	$8 * SIZE, B

	decl	I

	jne	.L25

	ALIGN_3

.L24:

	movl	STACK_M,  I

	andl	$1, I

	jle	.L30

	ALIGN_3

.L31:

#ifdef HAVE_MMX

	MMXLOAD		0 * SIZE(A1), %mm0

	MMXLOAD		1 * SIZE(A1), %mm1

	MMXLOAD		0 * SIZE(A2), %mm2

	MMXLOAD		1 * SIZE(A2), %mm3

	MMXSTORE	%mm0, 0 * SIZE(B)

	MMXSTORE	%mm1, 1 * SIZE(B)

	MMXSTORE	%mm2, 2 * SIZE(B)

	MMXSTORE	%mm3, 3 * SIZE(B)

#else

	FLD	1 * SIZE(A2)

	FLD	0 * SIZE(A2)

	FLD	1 * SIZE(A1)

	FLD	0 * SIZE(A1)

	FST	0 * SIZE(B)

	FST	1 * SIZE(B)

	FST	2 * SIZE(B)

	FST	3 * SIZE(B)

#endif

	addl	$2 * SIZE, A1

	addl	$2 * SIZE, A2

	addl	$4 * SIZE, B

	decl	I

	jne	.L31

	ALIGN_3

.L30:

	decl	J

	jne	.L21

	ALIGN_3

.L20:

	movl	A, A1

	movl	STACK_N, J

	andl	$1, J

	jle	.L38

	ALIGN_3

.L39:

	movl	STACK_M,  I

	sarl	$2, I

	je	.L42

	ALIGN_3

.L43:

#ifdef HAVE_MMX

	MMXLOAD		0 * SIZE(A1), %mm0

	MMXLOAD		1 * SIZE(A1), %mm1

	MMXLOAD		2 * SIZE(A1), %mm2

	MMXLOAD		3 * SIZE(A1), %mm3

	MMXLOAD		4 * SIZE(A1), %mm4

	MMXLOAD		5 * SIZE(A1), %mm5

	MMXLOAD		6 * SIZE(A1), %mm6

	MMXLOAD		7 * SIZE(A1), %mm7

	MMXSTORE	%mm0,  0 * SIZE(B)

	MMXSTORE	%mm1,  1 * SIZE(B)

	MMXSTORE	%mm2,  2 * SIZE(B)

	MMXSTORE	%mm3,  3 * SIZE(B)

	MMXSTORE	%mm4,  4 * SIZE(B)

	MMXSTORE	%mm5,  5 * SIZE(B)

	MMXSTORE	%mm6,  6 * SIZE(B)

	MMXSTORE	%mm7,  7 * SIZE(B)

#else

	FLD	 7 * SIZE(A1)

	FLD	 6 * SIZE(A1)

	FLD	 5 * SIZE(A1)

	FLD	 4 * SIZE(A1)

	FLD	 3 * SIZE(A1)

	FLD	 2 * SIZE(A1)

	FLD	 1 * SIZE(A1)

	FLD	 0 * SIZE(A1)

	FST	 0 * SIZE(B)

	FST	 1 * SIZE(B)

	FST	 2 * SIZE(B)

	FST	 3 * SIZE(B)

	FST	 4 * SIZE(B)

	FST	 5 * SIZE(B)

	FST	 6 * SIZE(B)

	FST	 7 * SIZE(B)

#endif

	addl	$8 * SIZE, A1

	addl	$8 * SIZE, B

	decl	I

	jne	.L43

	ALIGN_3

.L42:

	movl	STACK_M,  I

	andl	$3, I

	jle	.L38

	ALIGN_3

.L49:

#ifdef HAVE_MMX

	MMXLOAD		0 * SIZE(A1), %mm0

	MMXLOAD		1 * SIZE(A1), %mm1

	MMXSTORE	%mm0,  0 * SIZE(B)

	MMXSTORE	%mm1,  1 * SIZE(B)

#else

	FLD	1 * SIZE(A1)

	FLD	0 * SIZE(A1)

	FST	0 * SIZE(B)

	FST	1 * SIZE(B)

#endif

	addl	$2 * SIZE, A1

	addl	$2 * SIZE, B

	decl	I

	jne	.L49

	ALIGN_3

.L38:

	EMMS

	popl	%ebx

	popl	%esi

	popl	%edi

	popl	%ebp

	addl	$ARGS, %esp

	ret

	EPILOGUE