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

/* 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"

#include "version.h"

#define N	$16

#define X	$17

#define INCX	$18

#ifndef USE_MIN

#define CMPLT(a, b) cmptlt a, b

#else

#define CMPLT(a, b) cmptlt b, a

#endif

#define STACKSIZE 8 * 8

	PROLOGUE

	PROFCODE

	.frame	$sp, STACKSIZE, $26, 0

	lda	$sp, -STACKSIZE($sp)

	stt	$f2,   0($sp)

	fclr	$f16

	cmplt	$31, N,    $2

	stt	$f3,   8($sp)

	fclr	$f17

	cmplt	$31, INCX, $3

	unop

	stt	$f4,  16($sp)

	fclr	$f18

	SXADDQ	INCX, $31, INCX

	unop

	stt	$f5,  24($sp)

	fclr	$f19

	and	$2,  $3,  $0

	unop

	stt	$f6,  32($sp)

	unop

	stt	$f7,  40($sp)

	stt	$f8,  48($sp)

	stt	$f9,  56($sp)

	fclr	$f0

	beq	$0,  $End		# if (n <= 0) or (incx <= 0) return

	.align 4

	LD	$f20,  0 * SIZE(X)

	LD	$f21,  1 * SIZE(X)

	sra	N, 2, $1

	addq	INCX, INCX, INCX

	fabs	$f20, $f20

	fabs	$f21, $f21

	addt	$f20, $f21, $f0

	ble	$1,  $L15

	.align 4

	lda	$1,  -1($1)

	unop

	addq	X, INCX, X

	unop

	LD	$f22,  0 * SIZE(X)

	fmov	$f0,  $f1

	LD	$f23,  1 * SIZE(X)

	addq	X, INCX, X

	LD	$f24,  0 * SIZE(X)

	fmov	$f0,  $f2

	LD	$f25,  1 * SIZE(X)

	addq	X, INCX, X

	LD	$f26,  0 * SIZE(X)

	fmov	$f0,  $f3

	LD	$f27,  1 * SIZE(X)

	addq	X, INCX, X

	fabs	$f20, $f8

	fabs	$f21, $f9

	fabs	$f22, $f10

	fabs	$f23, $f11

	fabs	$f24, $f12

	fabs	$f25, $f13

	fabs	$f26, $f14

	fabs	$f27, $f15

	ble	$1, $L14

	.align 4

	LD	$f20,  0 * SIZE(X)

	LD	$f21,  1 * SIZE(X)

	lda	$1,  -1($1)

	addq	X, INCX, X

	LD	$f22,  0 * SIZE(X)

	LD	$f23,  1 * SIZE(X)

	unop

	addq	X, INCX, X

	LD	$f24,  0 * SIZE(X)

	LD	$f25,  1 * SIZE(X)

	unop

	addq	X, INCX, X

	LD	$f26,  0 * SIZE(X)

	LD	$f27,  1 * SIZE(X)

	addq	X, INCX, X

	ble	$1, $L13

	.align 4

$L12:

	addt	$f8,  $f9,  $f16

	unop

	fabs	$f20, $f8

	ldl	$31, 64 * SIZE(X)

	addt	$f10, $f11, $f17

	unop

	fabs	$f21, $f9

	LD	$f20,  0 * SIZE(X)

	addt	$f12, $f13, $f18

	LD	$f21,  1 * SIZE(X)

	fabs	$f22, $f10

	addq	X, INCX, X

	addt	$f14, $f15, $f19

	LD	$f22,  0 * SIZE(X)

	fabs	$f23, $f11

	unop

	CMPLT($f0,  $f16), $f4

	LD	$f23,  1 * SIZE(X)

	fabs	$f24, $f12

	addq	X, INCX, X

	CMPLT($f1,  $f17), $f5

	LD	$f24,  0 * SIZE(X)

	fabs	$f25, $f13

	unop

	CMPLT($f2,  $f18), $f6

	LD	$f25,  1 * SIZE(X)

	fabs	$f26, $f14

	addq	X, INCX, X

	CMPLT($f3,  $f19), $f7

	LD	$f26,  0 * SIZE(X)

	fabs	$f27, $f15

	unop

	fcmovne	$f4, $f16, $f0

	LD	$f27,  1 * SIZE(X)

	addq	X, INCX, X

	lda	$1,   -1($1)		# i --

	fcmovne	$f5, $f17, $f1

	fcmovne	$f6, $f18, $f2

	fcmovne	$f7, $f19, $f3

	bgt	$1,$L12

	.align 4

$L13:

	addt	$f8,  $f9,  $f16

	fabs	$f20, $f8

	addt	$f10, $f11, $f17

	fabs	$f21, $f9

	addt	$f12, $f13, $f18

	fabs	$f22, $f10

	addt	$f14, $f15, $f19

	fabs	$f23, $f11

	CMPLT($f0,  $f16), $f4

	fabs	$f24, $f12

	CMPLT($f1,  $f17), $f5

	fabs	$f25, $f13

	CMPLT($f2,  $f18), $f6

	fabs	$f26, $f14

	CMPLT($f3,  $f19), $f7

	fabs	$f27, $f15

	fcmovne	$f4, $f16, $f0

	fcmovne	$f5, $f17, $f1

	fcmovne	$f6, $f18, $f2

	fcmovne	$f7, $f19, $f3

	.align 4

$L14:

	addt	$f8,  $f9,  $f16

	addt	$f10, $f11, $f17

	addt	$f12, $f13, $f18

	addt	$f14, $f15, $f19

	CMPLT($f0,  $f16), $f4

	CMPLT($f1,  $f17), $f5

	CMPLT($f2,  $f18), $f6

	CMPLT($f3,  $f19), $f7

	fcmovne	$f4, $f16, $f0

	fcmovne	$f5, $f17, $f1

	fcmovne	$f6, $f18, $f2

	fcmovne	$f7, $f19, $f3

	CMPLT($f0,  $f1), $f16

	CMPLT($f2,  $f3), $f17

	fcmovne	$f16, $f1, $f0

	fcmovne	$f17, $f3, $f2

	CMPLT($f0,  $f2), $f16

	fcmovne	$f16, $f2, $f0

	.align 4

$L15:

	and	N, 3, $1

	unop

	unop

	ble	$1,  $End

	.align 4

$L16:

	LD	$f20,  0 * SIZE(X)

	LD	$f21,  1 * SIZE(X)

	unop

	addq	X, INCX, X

	fabs	$f20, $f29

	fabs	$f21, $f30

	addt	$f29, $f30, $f29

	CMPLT($f0,  $f29), $f16

	fcmovne	$f16, $f29, $f0

	lda	$1,   -1($1)		# i --

	bgt	$1, $L16

	.align 4

$End:

	ldt	$f2,   0($sp)

	ldt	$f3,   8($sp)

	ldt	$f4,  16($sp)

	ldt	$f5,  24($sp)

	ldt	$f6,  32($sp)

	ldt	$f7,  40($sp)

	ldt	$f8,  48($sp)

	ldt	$f9,  56($sp)

	lda	$sp,  STACKSIZE($sp)

	ret

	EPILOGUE