LXR uboot/post/lib_powerpc/fpu/20001122-1.c

   1/*
   2 * Copyright (C) 2007
   3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4 *
   5 * See file CREDITS for list of people who contributed to this
   6 * project.
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License as
  10 * published by the Free Software Foundation; either version 2 of
  11 * the License, or (at your option) any later version.
  12 *
  13 * This program is distributed in the hope that it will be useful,
  14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 * GNU General Public License for more details.
  17 *
  18 * You should have received a copy of the GNU General Public License
  19 * along with this program; if not, write to the Free Software
  20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21 * MA 02111-1307 USA
  22 */
  23/*
  24 * This file is originally a part of the GCC testsuite.
  25 */
  26
  27#include <common.h>
  28
  29#include <post.h>
  30
  31GNU_FPOST_ATTR
  32
  33#if CONFIG_POST & CONFIG_SYS_POST_FPU
  34
  35int fpu_post_test_math1 (void)
  36{
  37        volatile double a;
  38        double c, d;
  39        volatile double b;
  40
  41        d = 1.0;
  42
  43        do
  44        {
  45                c = d;
  46                d = c * 0.5;
  47                b = 1 + d;
  48        } while (b != 1.0);
  49
  50        a = 1.0 + c;
  51
  52        if (a == 1.0) {
  53                post_log ("Error in FPU math1 test\n");
  54                return -1;
  55        }
  56
  57        return 0;
  58}
  59
  60#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
  61