/*-
 * 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>
/*
 * 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