libm/nds32/fegetenv.c

   1 /*
   2  * Copyright (C) 2016-2017 Andes Technology, Inc.
   3  * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
   4  */
   5
   6 /* Store current floating-point environment.
   7    Copyright (C) 1997-2013 Free Software Foundation, Inc.
   8
   9    The GNU C Library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Lesser General Public
  11    License as published by the Free Software Foundation; either
  12    version 2.1 of the License, or (at your option) any later version.
  13
  14    The GNU C Library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Lesser General Public License for more details.
  18
  19    You should have received a copy of the GNU Lesser General Public
  20    License along with the GNU C Library.  If not, see
  21    <http://www.gnu.org/licenses/>.  */
  22
  23 #include <fenv.h>
  24 #include <fpu_control.h>
  25
  26 int
  27 fegetenv (fenv_t *envp)
  28 {
  29 #ifdef __NDS32_ABI_2FP_PLUS__
  30       unsigned long int temp;
  31       _FPU_GETCW (temp);
  32       envp->__fpcsr = temp;
  33
  34       /* Success.  */
  35       return 0;
  36 #else
  37   /* Unsupported, so fail.  */
  38   return 1;
  39 #endif
  40 }