1 /* Move double-word library function.
2 Copyright (C) 2000 Free Software Foundation, Inc.
3 Contributed by Red Hat, Inc.
4
5 This file is part of GNU CC.
6
7 GNU CC is free software ; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation * either version 2, or (at your option)
10 any later version.
11
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY ; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA. */
21
22 void
__cmovd(long long * dest,const long long * src,unsigned len)23 __cmovd (long long *dest, const long long *src, unsigned len)
24 {
25 unsigned i;
26 unsigned num = len >> 3;
27 unsigned xlen = len & ~7;
28 char *dest_byte = (char *)dest;
29 const char *src_byte = (const char *)src;
30
31 if (dest_byte < src_byte || dest_byte > src_byte+len)
32 {
33 for (i = 0; i < num; i++)
34 dest[i] = src[i];
35
36 while (len > xlen)
37 {
38 dest_byte[xlen] = src_byte[xlen];
39 xlen++;
40 }
41 }
42 else
43 {
44 while (len-- > 0)
45 dest_byte[len] = src_byte[len];
46 }
47 }
48