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iamax.S
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/*********************************************************************/
/* 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 STACK_X 8 + STACK + ARGS(%esp)
#define STACK_INCX 12 + STACK + ARGS(%esp)
#define M %ebx
#define INCX %esi
#define X %ecx
#define I %edx
#define NUM %edi
#define RET %eax
#ifndef USE_MIN
#define FMOV fcmovbe
#define IMOV cmovnbe
#else
#define FMOV fcmovnbe
#define IMOV cmovb
#endif
#include "l1param.h"
PROLOGUE
pushl %ebp
pushl %edi
pushl %esi
pushl %ebx
PROFCODE
movl STACK_M, M
movl STACK_INCX, INCX
movl STACK_X, X
#ifdef F_INTERFACE
movl (M), M
movl (INCX), INCX
#endif
#if defined(F_INTERFACE_GFORT) || defined(F_INTERFACE_G95)
EMMS
#endif
sall $BASE_SHIFT, INCX
fldz
xorl RET, RET
testl M, M
jle .L999
testl INCX, INCX
jle .L999
fstp %st(0)
movl $2, NUM
movl $1, RET
FLD (X)
#ifdef USE_ABS
fabs
#endif
addl INCX, X
decl M
jle .L999
cmpl $SIZE, INCX
jne .L40
movl M, I
sarl $3, I
jle .L20
ALIGN_4
.L10:
#ifdef PREFETCH
PREFETCH (PREFETCHSIZE + 0) - PREOFFSET(X)
#endif
FLD 0 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 1 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 2 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 3 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 4 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 5 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 6 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 7 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
addl $8 * SIZE, X
decl I
jg .L10
ALIGN_4
.L20:
movl M, I
andl $7, I
jle .L999
ALIGN_4
.L21:
FLD 0 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
addl $1 * SIZE, X
incl NUM
decl I
jg .L21
jmp .L999
ALIGN_4
.L40:
movl M, I
sarl $3, I
jle .L60
ALIGN_4
.L50:
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
FLD 0 * SIZE(X)
addl INCX, X
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
decl I
jg .L50
ALIGN_4
.L60:
movl M, I
andl $7, I
jle .L999
ALIGN_4
.L61:
FLD 0 * SIZE(X)
#ifdef USE_ABS
fabs
#endif
fcomi %st(1), %st
FMOV %st(1), %st(0)
IMOV NUM, RET
fstp %st(1)
incl NUM
addl INCX, X
decl I
jg .L61
ALIGN_4
.L999:
fstp %st(0)
popl %ebx
popl %esi
popl %edi
popl %ebp
ret
EPILOGUE