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

/* 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 M	ARG1

#define X	ARG2

#define INCX	ARG3

#define I	ARG4

#define NUM	%r10

#define RET	%rax

#ifndef USE_MIN

#define FMOV	fcmovbe

#define IMOV	cmovnbe

#else

#define FMOV	fcmovnb

#define IMOV	cmovb

#endif

#include "l1param.h"

	PROLOGUE

	PROFCODE

	salq	$ZBASE_SHIFT, INCX

	fldz

	xorq	RET, RET

	testq	M, M

	jle	.L999

	testq	INCX, INCX

	jle	.L999

	ffreep	%st

	movq	$2, NUM

	movq	$1, RET

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	addq	INCX, X

	decq	M

	jle	.L999

	cmpq	$2 * SIZE, INCX

	jne	.L40

	movq	M,  I

	sarq	$2, I

	jle	.L20

	ALIGN_4

.L10:

#ifdef PREFETCH

	PREFETCH (PREFETCHSIZE +  0) - PREOFFSET(X)

#endif

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	2 * SIZE(X)

	fabs	

	FLD	3 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	4 * SIZE(X)

	fabs	

	FLD	5 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	6 * SIZE(X)

	fabs	

	FLD	7 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	addq	$8 * SIZE, X

	decq	I

	jg	.L10

	ALIGN_4

.L20:

	movq	M,  I

	andq	$3, I

	jle	.L999

	ALIGN_4

.L21:

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	addq	$2 * SIZE, X

	decq	I

	jg	.L21

	jmp	.L999

	ALIGN_4

.L40:

	movq	M,  I

	sarq	$2, I

	jle	.L60

	ALIGN_4

.L50:

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	addq	INCX, X

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	addq	INCX, X

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	addq	INCX, X

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	addq	INCX, X

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	decq	I

	jg	.L50

	ALIGN_4

.L60:

	movq	M,  I

	andq	$3, I

	jle	.L999

	ALIGN_4

.L61:

	FLD	0 * SIZE(X)

	fabs	

	FLD	1 * SIZE(X)

	fabs	

	faddp	%st, %st(1)

	fcomi

	FMOV	%st(1), %st(0)

	IMOV	NUM, RET

	fxch	%st(1)

	ffreep	%st

	incq	NUM

	addq	INCX, X

	decq	I

	jg	.L61

	ALIGN_4

.L999:

	ffreep	%st

	ret

	EPILOGUE