/* Set a block of memory to some byte value.  64 bit S/390 version.   Copyright (C) 2001, 2003 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"	.textENTRY(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	%r14END(memset)libc_hidden_builtin_def (memset)