LXR uboot/post/lib_powerpc/fpu/20010226-1.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_math3 (void)
  36{
  37        volatile long double dfrom = 1.1;
  38        volatile long double m1;
  39        volatile long double m2;
  40        volatile unsigned long mant_long;
  41
  42        m1 = dfrom / 2.0;
  43        m2 = m1 * 4294967296.0;
  44        mant_long = ((unsigned long) m2) & 0xffffffff;
  45
  46        if (mant_long != 0x8ccccccc) {
  47                post_log ("Error in FPU math3 test\n");
  48                return -1;
  49        }
  50        return 0;
  51}
  52
  53#endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */
  54