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_math4 (void) 36 { 37 volatile float reale = 1.0f; 38 volatile float oneplus; 39 int i; 40 41 if (sizeof (float) != 4) 42 return 0; 43 44 for (i = 0; ; i++) 45 { 46 oneplus = 1.0f + reale; 47 if (oneplus == 1.0f) 48 break; 49 reale = reale / 2.0f; 50 } 51 /* Assumes ieee754 accurate arithmetic above. */ 52 if (i != 24) { 53 post_log ("Error in FPU math4 test\n"); 54 return -1; 55 } 56 return 0; 57 } 58 59 #endif /* CONFIG_POST & CONFIG_SYS_POST_FPU */ 60