post/lib_ppc/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
  31 #if CONFIG_POST & CONFIG_SYS_POST_FPU
  32
  33 GNU_FPOST_ATTR
  34
  35 int 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 */