diff options
Diffstat (limited to 'libm/arc/fesetround.c')
| -rw-r--r-- | libm/arc/fesetround.c | 36 | 
1 files changed, 36 insertions, 0 deletions
| diff --git a/libm/arc/fesetround.c b/libm/arc/fesetround.c new file mode 100644 index 000000000..e156e9cf5 --- /dev/null +++ b/libm/arc/fesetround.c @@ -0,0 +1,36 @@ +/* Set current rounding direction. +   Copyright (C) 2020-2025 Free Software Foundation, Inc. + +   The GNU C Library is free software; you can redistribute it and/or +   modify it under the terms of the GNU Lesser General Public +   License as published by the Free Software Foundation; either +   version 2.1 of the License, or (at your option) any later version. + +   The GNU C Library is distributed in the hope that it will be useful, +   but WITHOUT ANY WARRANTY; without even the implied warranty of +   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU +   Lesser General Public License for more details. + +   You should have received a copy of the GNU Lesser General Public +   License along with the GNU C Library.  If not, see +   <https://www.gnu.org/licenses/>.  */ + +#include <fenv.h> +#include "fenv_private.h" + +int +fesetround (int round) +{ +  unsigned int fpcr; + +  _FPU_GETCW (fpcr); + +  if (((fpcr >> __FPU_RND_SHIFT) & __FPU_RND_MASK) != round) +    { +      fpcr &= ~(__FPU_RND_MASK << __FPU_RND_SHIFT); +      fpcr |= (round & __FPU_RND_MASK) << __FPU_RND_SHIFT; +      _FPU_SETCW (fpcr); +    } + +  return 0; +} | 
