/*- * 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 __FBSDID("$FreeBSD: head/lib/libc/i386/string/wcschr.S 217106 2011-01-07 16:08:40Z kib $"); /* * wchar_t * * wcschr(const wchar_t *s, wchar_t c) -- * Return pointer to first occurrence of the character `c' in the wide * character string `s', or NULL if not found. */ ENTRY(wcschr) movl 4(%esp),%ecx /* String */ movl 8(%esp),%eax /* Character */ pushl %ebx .p2align 4,0x90 L1: movl (%ecx),%ebx cmpl %eax,%ebx je found0 testl %ebx,%ebx jz no movl 4(%ecx),%ebx cmpl %eax,%ebx je found1 testl %ebx,%ebx jz no movl 8(%ecx),%ebx cmpl %eax,%ebx je found2 testl %ebx,%ebx jz no movl 12(%ecx),%ebx cmpl %eax,%ebx je found3 testl %ebx,%ebx jz no leal 16(%ecx),%ecx jmp L1 .p2align 2,0x90 found3: leal 4(%ecx),%ecx .p2align 2,0x90 found2: leal 4(%ecx),%ecx .p2align 2,0x90 found1: leal 4(%ecx),%ecx .p2align 2,0x90 found0: popl %ebx movl %ecx,%eax ret .p2align 2,0x90 no: popl %ebx xorl %eax,%eax ret END(wcschr) .section .note.GNU-stack,"",%progbits