1a47a12beSStefan Roese /*
2a47a12beSStefan Roese  * Copyright (C) 2007
3a47a12beSStefan Roese  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4a47a12beSStefan Roese  *
5a47a12beSStefan Roese  * See file CREDITS for list of people who contributed to this
6a47a12beSStefan Roese  * project.
7a47a12beSStefan Roese  *
8a47a12beSStefan Roese  * This program is free software; you can redistribute it and/or
9a47a12beSStefan Roese  * modify it under the terms of the GNU General Public License as
10a47a12beSStefan Roese  * published by the Free Software Foundation; either version 2 of
11a47a12beSStefan Roese  * the License, or (at your option) any later version.
12a47a12beSStefan Roese  *
13a47a12beSStefan Roese  * This program is distributed in the hope that it will be useful,
14a47a12beSStefan Roese  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15a47a12beSStefan Roese  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16a47a12beSStefan Roese  * GNU General Public License for more details.
17a47a12beSStefan Roese  *
18a47a12beSStefan Roese  * You should have received a copy of the GNU General Public License
19a47a12beSStefan Roese  * along with this program; if not, write to the Free Software
20a47a12beSStefan Roese  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21a47a12beSStefan Roese  * MA 02111-1307 USA
22a47a12beSStefan Roese  */
23a47a12beSStefan Roese /*
24a47a12beSStefan Roese  * This file is originally a part of the GCC testsuite.
25a47a12beSStefan Roese  */
26a47a12beSStefan Roese 
27a47a12beSStefan Roese #include <common.h>
28a47a12beSStefan Roese 
29a47a12beSStefan Roese #include <post.h>
30a47a12beSStefan Roese 
31a47a12beSStefan Roese GNU_FPOST_ATTR
32a47a12beSStefan Roese 
33e009cdebSKumar Gala #if CONFIG_POST & CONFIG_SYS_POST_FPU
34e009cdebSKumar Gala 
35a47a12beSStefan Roese int fpu_post_test_math1 (void)
36a47a12beSStefan Roese {
37*944416e0SStefan Roese 	volatile double a;
38a47a12beSStefan Roese 	double c, d;
39a47a12beSStefan Roese 	volatile double b;
40a47a12beSStefan Roese 
41a47a12beSStefan Roese 	d = 1.0;
42a47a12beSStefan Roese 
43a47a12beSStefan Roese 	do
44a47a12beSStefan Roese 	{
45a47a12beSStefan Roese 		c = d;
46a47a12beSStefan Roese 		d = c * 0.5;
47a47a12beSStefan Roese 		b = 1 + d;
48a47a12beSStefan Roese 	} while (b != 1.0);
49a47a12beSStefan Roese 
50a47a12beSStefan Roese 	a = 1.0 + c;
51a47a12beSStefan Roese 
52a47a12beSStefan Roese 	if (a == 1.0) {
53a47a12beSStefan Roese 		post_log ("Error in FPU math1 test\n");
54a47a12beSStefan Roese 		return -1;
55a47a12beSStefan Roese 	}
56a47a12beSStefan Roese 
57a47a12beSStefan Roese 	return 0;
58a47a12beSStefan Roese }
59a47a12beSStefan Roese 
60a47a12beSStefan Roese #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
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