mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-15 01:21:06 +00:00
42 lines
1.2 KiB
ArmAsm
42 lines
1.2 KiB
ArmAsm
/* Search a character in a block of memory. For IBM S390
|
|
Copyright (C) 2000-2016 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
/*
|
|
* R2 = address to memory area
|
|
* R3 = character to find
|
|
* R4 = number of bytes to search
|
|
*/
|
|
|
|
#include "sysdep.h"
|
|
#include "asm-syntax.h"
|
|
|
|
.text
|
|
ENTRY(memchr)
|
|
lhi %r0,0xff
|
|
nr %r0,%r3
|
|
lr %r1,%r2
|
|
la %r2,0(%r4,%r1)
|
|
0: srst %r2,%r1
|
|
jo 0b
|
|
brc 13,1f
|
|
slr %r2,%r2
|
|
1: br %r14
|
|
END(memchr)
|
|
libc_hidden_builtin_def (memchr)
|