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Diffstat (limited to 'arch/mips/math-emu/ieee754m.c')
-rw-r--r-- | arch/mips/math-emu/ieee754m.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/mips/math-emu/ieee754m.c b/arch/mips/math-emu/ieee754m.c new file mode 100644 index 000000000000..d66896cd8f21 --- /dev/null +++ b/arch/mips/math-emu/ieee754m.c | |||
@@ -0,0 +1,56 @@ | |||
1 | /* | ||
2 | * floor, trunc, ceil | ||
3 | */ | ||
4 | /* | ||
5 | * MIPS floating point support | ||
6 | * Copyright (C) 1994-2000 Algorithmics Ltd. | ||
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 | |||
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 | |||
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 | |||
50 | ieee754dp ieee754dp_trunc(ieee754dp x) | ||
51 | { | ||
52 | ieee754dp i; | ||
53 | |||
54 | (void) ieee754dp_modf(x, &i); | ||
55 | return i; | ||
56 | } | ||