52 lines
1.4 KiB
ArmAsm
52 lines
1.4 KiB
ArmAsm
/* Copy memory block and return pointer to following byte.
|
|
For Intel 80x86, x>=6.
|
|
This file is part of the GNU C Library.
|
|
Copyright (C) 1998, 1999 Free Software Foundation, Inc.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If not,
|
|
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include <sysdep.h>
|
|
#include "asm-syntax.h"
|
|
|
|
/* mempcpy:
|
|
INPUT PARAMETER:
|
|
dest (sp + 4)
|
|
src (sp + 8)
|
|
len (sp + 12)
|
|
*/
|
|
|
|
ENTRY(__mempcpy)
|
|
movl 12(%esp), %ecx
|
|
movl %edi, %eax
|
|
movl 4(%esp), %edi
|
|
movl %esi, %edx
|
|
movl 8(%esp), %esi
|
|
cld
|
|
shrl $1, %ecx
|
|
jnc 1f
|
|
movsb
|
|
1: shrl $1, %ecx
|
|
jnc 2f
|
|
movsw
|
|
2: rep
|
|
movsl
|
|
xchgl %edi, %eax
|
|
movl %edx, %esi
|
|
ret
|
|
END(__mempcpy)
|
|
weak_alias (__mempcpy, mempcpy)
|