1/*- 2 * Copyright (c) 2003 Tim J. Robbins. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <machine/asm.h> 28/* 29 * wchar_t * 30 * wcschr(const wchar_t *s, wchar_t c) -- 31 * Return pointer to first occurrence of the character `c' in the wide 32 * character string `s', or NULL if not found. 33 */ 34ENTRY(wcschr) 35 movl 4(%esp),%ecx /* String */ 36 movl 8(%esp),%eax /* Character */ 37 pushl %ebx 38.p2align 4,0x90 39L1: movl (%ecx),%ebx 40 cmpl %eax,%ebx 41 je found0 42 testl %ebx,%ebx 43 jz no 44 movl 4(%ecx),%ebx 45 cmpl %eax,%ebx 46 je found1 47 testl %ebx,%ebx 48 jz no 49 movl 8(%ecx),%ebx 50 cmpl %eax,%ebx 51 je found2 52 testl %ebx,%ebx 53 jz no 54 movl 12(%ecx),%ebx 55 cmpl %eax,%ebx 56 je found3 57 testl %ebx,%ebx 58 jz no 59 leal 16(%ecx),%ecx 60 jmp L1 61.p2align 2,0x90 62found3: leal 4(%ecx),%ecx 63.p2align 2,0x90 64found2: leal 4(%ecx),%ecx 65.p2align 2,0x90 66found1: leal 4(%ecx),%ecx 67.p2align 2,0x90 68found0: popl %ebx 69 movl %ecx,%eax 70 ret 71.p2align 2,0x90 72no: popl %ebx 73 xorl %eax,%eax 74 ret 75END(wcschr) 76 77 .section .note.GNU-stack,"",%progbits 78