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/*-
* 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("$FreeBSD$");
/*
* size_t
* wcslen(const wchar_t *s) --
* Find the length of a wide character string.
*/
ENTRY(wcslen)
movl 4(%esp),%ecx /* String */
pushl %ebx
xorl %ebx,%ebx
xorl %eax,%eax
.p2align 4,0x90
L1: cmpl %ebx,(%ecx)
jz found0
cmpl %ebx,4(%ecx)
jz found1
cmpl %ebx,8(%ecx)
jz found2
cmpl %ebx,12(%ecx)
jz found3
cmpl %ebx,16(%ecx)
jz found4
cmpl %ebx,20(%ecx)
jz found5
cmpl %ebx,24(%ecx)
jz found6
cmpl %ebx,28(%ecx)
jz found7
leal 32(%ecx),%ecx
addl $8,%eax
jmp L1
found7: incl %eax
found6: incl %eax
found5: incl %eax
found4: incl %eax
found3: incl %eax
found2: incl %eax
found1: incl %eax
found0: popl %ebx
ret
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