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1/* Set current rounding direction.
2 Copyright (C) 1997-2019 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4 Contributed by Richard Henderson <rth@tamu.edu>, 1997
5
6 The GNU C Library is free software; you can redistribute it and/or
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.
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
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library. If not, see
18 <http://www.gnu.org/licenses/>. */
19
20#include <fenv_libc.h>
21
22int
23__fesetround (int round)
24{
25 unsigned long fpcr;
26
27 if (round & ~3)
28 return 1;
29
30 /* Get the current state. */
31 __asm__ __volatile__("excb; mf_fpcr %0" : "=f"(fpcr));
32
33 /* Set the relevant bits. */
34 fpcr = ((fpcr & ~FPCR_ROUND_MASK)
35 | ((unsigned long)round << FPCR_ROUND_SHIFT));
36
37 /* Put the new state in effect. */
38 __asm__ __volatile__("mt_fpcr %0; excb" : : "f"(fpcr));
39
40 return 0;
41}
42libm_hidden_def (__fesetround)
43weak_alias (__fesetround, fesetround)
44libm_hidden_weak (fesetround)
45

Warning: That file was not part of the compilation database. It may have many parsing errors.