mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-24 11:41:07 +00:00
41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
44 lines
1.5 KiB
ArmAsm
44 lines
1.5 KiB
ArmAsm
/* Set a block of memory to some byte value. 64 bit S/390 version.
|
|
Copyright (C) 2001 Free Software Foundation, Inc.
|
|
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
|
|
This file is part of the GNU C Library.
|
|
|
|
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, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
/* INPUT PARAMETERS
|
|
%r2 = address of memory area
|
|
%r3 = byte to fill memory with
|
|
%r4 = number of bytes to fill. */
|
|
|
|
#include "sysdep.h"
|
|
#include "asm-syntax.h"
|
|
|
|
.text
|
|
ENTRY(memset)
|
|
ltgr %r4,%r4
|
|
jz .L1
|
|
lgr %r0,%r2 # save source address
|
|
lgr %r1,%r3 # move pad byte to R1
|
|
lgr %r3,%r4
|
|
sgr %r4,%r4 # no source for MVCLE, only a pad byte
|
|
sgr %r5,%r5
|
|
.L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend
|
|
jo .L0
|
|
lgr %r2,%r0 # return value is source address
|
|
.L1:
|
|
br %r14
|
|
END(memset)
|