libm/metag/fegetenv.c

   1 /* Store current floating-point environment.
   2    Copyright (C) 2013 Imagination Technologies Ltd.
   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; see the file COPYING.LIB.  If
  17    not, see <http://www.gnu.org/licenses/>.  */
  18
  19 #include <fenv.h>
  20
  21 int
  22 fegetenv (fenv_t *envp)
  23 {
  24   unsigned int txdefr;
  25   unsigned int txmode;
  26
  27   __asm__ ("MOV %0,TXDEFR" : "=r" (txdefr));
  28   __asm__ ("MOV %0,TXMODE" : "=r" (txmode));
  29
  30   envp->txdefr = txdefr;
  31   envp->txmode = txmode;
  32
  33   /* Success.  */
  34   return 0;
  35 }