strcpy.s

来自「Glibc 2.3.2源代码(解压后有100多M)」· S 代码 · 共 37 行

/* strcpy - copy a string from source to destination. For IBM S390
   This file is part of the GNU C Library.
   Copyright (C) 2000, 2001 Free Software Foundation, Inc.
   Contributed by Martin Schwidefsky ([e-mail]).

   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.  */

/*
 * R2 = address of destination
 * R3 = address of source
 */

#include "sysdep.h"
#include "asm-syntax.h"

	.text
ENTRY(strcpy)
	slr   %r0,%r0
	lr    %r1,%r2
0:      mvst  %r1,%r3
	jo    0b
	br    %r14
END(strcpy)