blob: 1ed5290c66edef560bb924eacbf3ac594e8f9aca [file] [log] [blame]
Chen Liqin6bc9a392009-06-12 22:01:00 +08001/*
2 * arch/score/lib/cmpdi2.c
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, see the file COPYING, or write
16 * to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20#include <linux/module.h>
21#include "libgcc.h"
22
23word_type __cmpdi2(long long a, long long b)
24{
25 const DWunion au = {
26 .ll = a
27 };
28 const DWunion bu = {
29 .ll = b
30 };
31
32 if (au.s.high < bu.s.high)
33 return 0;
34 else if (au.s.high > bu.s.high)
35 return 2;
36
37 if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
38 return 0;
39 else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
40 return 2;
41
42 return 1;
43}
44EXPORT_SYMBOL(__cmpdi2);