1 /* bzero -- set a block of memory to zero. 64 bit S/390 version.
2 This file is part of the GNU C Library.
3 Copyright (C) 2001-2014 Free Software Foundation, Inc.
4 Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <http://www.gnu.org/licenses/>. */
21 %r2 = address of memory area
22 %r3 = number of bytes to fill. */
25 #include "asm-syntax.h"
31 sgr %r1,%r1 # set pad byte to zero
32 sgr %r4,%r4 # no source for MVCLE, only a pad byte
34 .L0: mvcle %r2,%r4,0(%r1) # thats it, MVCLE is your friend
40 weak_alias (__bzero, bzero)