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