|
Packit Service |
c30797 |
/* Search a character in a block of memory. 31/64 bit S/390 version.
|
|
Packit |
6c4009 |
Copyright (C) 2001-2018 Free Software Foundation, Inc.
|
|
Packit |
6c4009 |
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
|
Packit |
6c4009 |
This file is part of the GNU C Library.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is free software; you can redistribute it and/or
|
|
Packit |
6c4009 |
modify it under the terms of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License as published by the Free Software Foundation; either
|
|
Packit |
6c4009 |
version 2.1 of the License, or (at your option) any later version.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
The GNU C Library is distributed in the hope that it will be useful,
|
|
Packit |
6c4009 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
Packit |
6c4009 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Packit |
6c4009 |
Lesser General Public License for more details.
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
You should have received a copy of the GNU Lesser General Public
|
|
Packit |
6c4009 |
License along with the GNU C Library; if not, see
|
|
Packit |
6c4009 |
<http://www.gnu.org/licenses/>. */
|
|
Packit |
6c4009 |
|
|
Packit |
6c4009 |
/* INPUT PARAMETERS
|
|
Packit |
6c4009 |
%r2 = address to memory area
|
|
Packit |
6c4009 |
%r3 = character to find
|
|
Packit |
6c4009 |
%r4 = number of bytes to search. */
|
|
Packit |
6c4009 |
|
|
Packit Service |
c30797 |
#include <ifunc-memchr.h>
|
|
Packit |
6c4009 |
#include "sysdep.h"
|
|
Packit |
6c4009 |
#include "asm-syntax.h"
|
|
Packit |
6c4009 |
|
|
Packit Service |
c30797 |
#if HAVE_MEMCHR_Z900_G5
|
|
Packit Service |
c30797 |
# if defined __s390x__
|
|
Packit Service |
c30797 |
# define SLGR slgr
|
|
Packit Service |
c30797 |
# define LGHI lghi
|
|
Packit Service |
c30797 |
# define NGR ngr
|
|
Packit Service |
c30797 |
# define LGR lgr
|
|
Packit Service |
c30797 |
# else
|
|
Packit Service |
c30797 |
# define SLGR slr
|
|
Packit Service |
c30797 |
# define LGHI lhi
|
|
Packit Service |
c30797 |
# define NGR nr
|
|
Packit Service |
c30797 |
# define LGR lr
|
|
Packit Service |
c30797 |
# endif /* ! defined __s390x__ */
|
|
Packit Service |
c30797 |
|
|
Packit |
6c4009 |
.text
|
|
Packit Service |
c30797 |
ENTRY(MEMCHR_Z900_G5)
|
|
Packit Service |
c30797 |
LGHI %r0,0xff
|
|
Packit Service |
c30797 |
NGR %r0,%r3
|
|
Packit Service |
c30797 |
LGR %r1,%r2
|
|
Packit |
6c4009 |
la %r2,0(%r4,%r1)
|
|
Packit |
6c4009 |
0: srst %r2,%r1
|
|
Packit |
6c4009 |
jo 0b
|
|
Packit |
6c4009 |
brc 13,1f
|
|
Packit Service |
c30797 |
SLGR %r2,%r2
|
|
Packit |
6c4009 |
1: br %r14
|
|
Packit Service |
c30797 |
END(MEMCHR_Z900_G5)
|
|
Packit Service |
c30797 |
|
|
Packit Service |
c30797 |
# if ! HAVE_MEMCHR_IFUNC
|
|
Packit Service |
c30797 |
strong_alias (MEMCHR_Z900_G5, __memchr)
|
|
Packit Service |
c30797 |
weak_alias (__memchr, memchr)
|
|
Packit Service |
c30797 |
# endif
|
|
Packit Service |
c30797 |
|
|
Packit Service |
c30797 |
# if defined SHARED && IS_IN (libc)
|
|
Packit Service |
c30797 |
strong_alias (MEMCHR_Z900_G5, __GI_memchr)
|
|
Packit Service |
c30797 |
# endif
|
|
Packit Service |
c30797 |
#endif
|