Current Path : /usr/src/lib/libc/i386/string/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //usr/src/lib/libc/i386/string/wcscmp.S |
/*- * Copyright (c) 2003 Tim J. Robbins. * 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 AUTHOR AND CONTRIBUTORS ``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 AUTHOR 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. */ #include <machine/asm.h> __FBSDID("$FreeBSD: release/9.1.0/lib/libc/i386/string/wcscmp.S 217106 2011-01-07 16:08:40Z kib $"); /* * int * wcscmp(const wchar_t *s1, const wchar_t *s2) -- * Return an integer greater than, equal to, or less than 0, when * the string s1 is greater than, equal to, or less than the string s2. */ ENTRY(wcscmp) pushl %edi pushl %esi movl 12(%esp),%edi /* s1 */ movl 16(%esp),%esi /* s2 */ .p2align 4,0x90 top: movl (%edi),%eax cmpl %eax,(%esi) jne no0 testl %eax,%eax jz same movl 4(%edi),%eax cmpl %eax,4(%esi) jne no4 testl %eax,%eax jz same movl 8(%edi),%eax cmpl %eax,8(%esi) jne no8 testl %eax,%eax jz same movl 12(%edi),%eax cmpl %eax,12(%esi) jne no12 leal 16(%edi),%edi leal 16(%esi),%esi testl %eax,%eax jnz top .p2align 2,0x90 same: xorl %eax,%eax popl %esi popl %edi ret .p2align 2,0x90 no12: leal 4(%esi),%esi .p2align 2,0x90 no8: leal 4(%esi),%esi .p2align 2,0x90 no4: leal 4(%esi),%esi .p2align 2,0x90 no0: subl (%esi),%eax popl %esi popl %edi ret END(wcscmp) .section .note.GNU-stack,"",%progbits