sysdeps/csky/fpu/fesetexcept.c

   1 /* Set given exception flags.
   2    Copyright (C) 2018 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   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.
   9
  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.
  14
  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/>.  */
  18
  19 #include <fenv.h>
  20 #include <fpu_control.h>
  21 #include <fenv_libc.h>
  22
  23 int
  24 fesetexcept (int excepts)
  25 {
  26   fpu_control_t fpsr, new_fpsr;
  27   _FPU_GETFPSR (fpsr);
  28   new_fpsr = fpsr | ((excepts & FE_ALL_EXCEPT) << CAUSE_SHIFT);
  29   if (new_fpsr != fpsr)
  30     _FPU_SETFPSR (new_fpsr);
  31
  32   return 0;
  33 }