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847b055c | 1 | /* Set current rounding direction. |
0ecb606c | 2 | Copyright (C) 2000, 2005 Free Software Foundation, Inc. |
847b055c | 3 | This file is part of the GNU C Library. |
528be9fe | 4 | Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). |
847b055c AJ |
5 | |
6 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
847b055c AJ |
10 | |
11 | The GNU C Library is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
847b055c | 15 | |
41bdb6e2 AJ |
16 | You should have received a copy of the GNU Lesser General Public |
17 | License along with the GNU C Library; if not, write to the Free | |
18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA | |
19 | 02111-1307 USA. */ | |
847b055c | 20 | |
528be9fe | 21 | #include <fenv_libc.h> |
847b055c AJ |
22 | #include <fpu_control.h> |
23 | ||
24 | int | |
25 | fesetround (int round) | |
26 | { | |
27 | if ((round|FPC_RM_MASK) != FPC_RM_MASK) | |
28 | { | |
29 | /* ROUND is not a valid rounding mode. */ | |
30 | return 1; | |
31 | } | |
32 | __asm__ volatile ("srnm 0(%0)" | |
33 | : | |
34 | : "a" (round)); | |
528be9fe | 35 | |
847b055c AJ |
36 | return 0; |
37 | } | |
0ecb606c | 38 | libm_hidden_def (fesetround) |