91 lines
3.3 KiB
ArmAsm
91 lines
3.3 KiB
ArmAsm
/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin. */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* 1. Redistributions of source code must retain the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer. */
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/* */
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/* 2. Redistributions in binary form must reproduce the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer in the documentation and/or other materials */
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/* provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
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/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
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/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
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/* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
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/* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
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/* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
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/* POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/* The views and conclusions contained in the software and */
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/* documentation are those of the authors and should not be */
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/* interpreted as representing official policies, either expressed */
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/* or implied, of The University of Texas at Austin. */
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/*********************************************************************/
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#define ASSEMBLER
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#include "common.h"
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PROLOGUE
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PROFCODE
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movl 4(%esp), %eax
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movl 8(%esp), %edx
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movb (%eax), %al # a = *A
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movb (%edx), %dl # b = *B
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andl $255, %eax
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andl $255, %edx
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subl $65, %eax
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subl $65, %edx
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#ifndef HAVE_CMOV
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movl %eax, %ecx
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subl $32, %ecx
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jle .L1
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movl %ecx, %eax
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.L1:
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movl %edx, %ecx
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subl $32, %ecx
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jle .L2
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movl %ecx, %edx
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.L2:
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subl %eax, %edx
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movl $0, %eax
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movl $1, %edx
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jne .L3
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movl %edx, %eax
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.L3:
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#else
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movl %eax, %ecx
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subl $32, %ecx
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cmovge %ecx, %eax
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movl %edx, %ecx
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subl $32, %ecx
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cmovge %ecx, %edx
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subl %eax, %edx
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movl $0, %eax
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movl $1, %edx
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cmove %edx, %eax
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#endif
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ret
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EPILOGUE
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