1 /*
2 * floor, trunc, ceil
3 */
4 /*
5 * MIPS floating point support
6 * Copyright (C) 1994-2000 Algorithmics Ltd. All rights reserved.
7 * http://www.algor.co.uk
8 *
9 * ########################################################################
10 *
11 * This program is free software; you can distribute it and/or modify it
12 * under the terms of the GNU General Public License (Version 2) as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 * for more details.
19 *
20 * You should have received a copy of the GNU General Public License along
21 * with this program; if not, write to the Free Software Foundation, Inc.,
22 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 *
24 * ########################################################################
25 */
26
27
28 #include "ieee754.h"
29
ieee754dp_floor(ieee754dp x)30 ieee754dp ieee754dp_floor(ieee754dp x)
31 {
32 ieee754dp i;
33
34 if (ieee754dp_lt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
35 return ieee754dp_sub(i, ieee754dp_one(0));
36 else
37 return i;
38 }
39
ieee754dp_ceil(ieee754dp x)40 ieee754dp ieee754dp_ceil(ieee754dp x)
41 {
42 ieee754dp i;
43
44 if (ieee754dp_gt(ieee754dp_modf(x, &i), ieee754dp_zero(0)))
45 return ieee754dp_add(i, ieee754dp_one(0));
46 else
47 return i;
48 }
49
ieee754dp_trunc(ieee754dp x)50 ieee754dp ieee754dp_trunc(ieee754dp x)
51 {
52 ieee754dp i;
53
54 (void) ieee754dp_modf(x, &i);
55 return i;
56 }
57