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

/* 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	12

#define ARGS	 0

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

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

#ifdef DOUBLE

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

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

#define C	48 + STACK + ARGS(%esp)

#define LDC	52 + STACK + ARGS(%esp)

#else

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

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

#define C	40 + STACK + ARGS(%esp)

#define LDC	44 + STACK + ARGS(%esp)

#endif

	PROLOGUE

	pushl	%ebp

	pushl	%edi

	pushl	%esi

	PROFCODE

	movl	M,   %ebp

	movl	N,   %ecx

	movl	LDC, %edx

	movl	C,   %edi

	FLD	BETA_R

	FLD	BETA_I

	testl	%ebp, %ebp		# if n <= 0 goto End

	jle	.L83

	testl	%ecx, %ecx		# if m <= 0 goto End

	jle	.L83

	fld	%st(1)

	fabs

	fld	%st(1)

	fabs

	faddp	%st, %st(1)

	sall	$ZBASE_SHIFT,  %edx

	ftst

	fnstsw	%ax

	andb	$68, %ah

#ifndef C_SUN

	ffreep	%st(0)

#else

	.byte	0xdf

	.byte	0xc0

#endif

	je	.L71

	ALIGN_2

.L53:

	movl	%edi, %esi		# c_offset1 = c_offset

	addl	%edx, %edi		# c_offset += ldc

	movl	%ebp, %eax

	sarl	$2,   %eax

	jle	.L56

	ALIGN_2

.L57:

#if defined(HAS_PREFETCH) && defined(PENTIUM3)

	prefetchnta	16 * SIZE(%esi)

	prefetchnta	24 * SIZE(%esi)

#endif

	FSTU	0 * SIZE(%esi)		# c_offset1

	FSTU	1 * SIZE(%esi)

	FSTU	2 * SIZE(%esi)

	FSTU	3 * SIZE(%esi)

	FSTU	4 * SIZE(%esi)

	FSTU	5 * SIZE(%esi)

	FSTU	6 * SIZE(%esi)

	FSTU	7 * SIZE(%esi)

	addl	$8 * SIZE, %esi		# c_offset1 += 8

	decl	%eax			# i--

	jg	.L57

	ALIGN_2

.L56:

	movl	%ebp, %eax

	andl	$3,   %eax

	jle	.L62

	ALIGN_2

.L63:

	FSTU	0 * SIZE(%esi)

	FSTU	1 * SIZE(%esi)

	addl	$2 * SIZE,%esi

	decl	%eax

	jg	.L63

	ALIGN_2

.L62:

	decl	%ecx			# j --

	jg	.L53

	jmp	.L83

	ALIGN_3

.L71:

	movl	%edi, %esi

	addl	%edx, %edi		# c_offset += ldc

	movl	%ebp, %eax

	sarl	$1,   %eax

	jle	.L84

	ALIGN_3

.L85:

#if defined(HAS_PREFETCH) && defined(PENTIUM3)

	prefetchnta	16 * SIZE(%esi)

#endif

	fld	%st(0)

	FMUL	0 * SIZE(%esi)

	fld	%st(2)

	FMUL	1 * SIZE(%esi)

	faddp	%st,%st(1)

	fld	%st(2)

	FMUL	0 * SIZE(%esi)

	fld	%st(2)

	FMUL	1 * SIZE(%esi)

	fsubrp	%st,%st(1)

	FST	0 * SIZE(%esi)

	FST	1 * SIZE(%esi)

	fld	%st(0)

	FMUL	2 * SIZE(%esi)

	fld	%st(2)

	FMUL	3 * SIZE(%esi)

	faddp	%st,%st(1)

	fld	%st(2)

	FMUL	2 * SIZE(%esi)

	fld	%st(2)

	FMUL	3 * SIZE(%esi)

	fsubrp	%st,%st(1)

	FST	2 * SIZE(%esi)

	FST	3 * SIZE(%esi)

	addl	$4 * SIZE, %esi

	decl	%eax

	jg	.L85

	ALIGN_3

.L84:

	movl	%ebp, %eax

	andl	$1,   %eax

	jle	.L74

	ALIGN_3

.L75:

#if defined(HAS_PREFETCH) && defined(PENTIUM3)

	prefetchnta	16 * SIZE(%esi)

#endif

	fld	%st(0)

	FMUL	0 * SIZE(%esi)

	fld	%st(2)

	FMUL	1 * SIZE(%esi)

	faddp	%st,%st(1)

	fld	%st(2)

	FMUL	0 * SIZE(%esi)

	fld	%st(2)

	FMUL	1 * SIZE(%esi)

	fsubrp	%st,%st(1)

	FST	0 * SIZE(%esi)

	FST	1 * SIZE(%esi)

	ALIGN_2

.L74:

	decl	%ecx

	jg	.L71

	ALIGN_2

.L83:

#ifndef C_SUN

	ffreep	%st(0)

	ffreep	%st(0)

#else

	.byte	0xdf

	.byte	0xc0

	.byte	0xdf

	.byte	0xc0

#endif

	popl	%esi

	popl	%edi

	popl	%ebp

	ret

	EPILOGUE