soft-fp: support after-rounding tininess detection.
[glibc.git] / sysdeps / sparc / fpu / fesetround.c
blobda63b80873c8f2bf486d8cab617940f38d35b767
1 /* Set current rounding direction.
2 Copyright (C) 1997-2014 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <fenv.h>
21 int
22 fesetround (int round)
24 fenv_t tmp;
26 if ((round & ~__FE_ROUND_MASK) != 0)
27 /* ROUND is no valid rounding mode. */
28 return 1;
30 __fenv_stfsr (tmp);
31 tmp &= ~__FE_ROUND_MASK;
32 tmp |= round;
33 __fenv_ldfsr (tmp);
35 return 0;
37 libm_hidden_def (fesetround)