/* Install given floating-point control modes.  Alpha version.

   Copyright (C) 2016-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   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

   <http://www.gnu.org/licenses/>.  */

#include <fenv_libc.h>

int

fesetmode (const femode_t *modep)

{

  unsigned long int fpcr;

  unsigned long int swcr;

  femode_t mode;

  /* As in fesetenv.  */

  if ((long int) modep >= 0)

    mode = *modep;

  else

    mode = (unsigned long int) modep;

  __asm__ __volatile__ ("excb; mf_fpcr %0" : "=f" (fpcr));

  fpcr = (fpcr & ~FPCR_ROUND_MASK) | (mode & FPCR_ROUND_MASK);

  __asm__ __volatile__ ("mt_fpcr %0" : : "f" (fpcr));

  swcr = __ieee_get_fp_control ();

  swcr = ((mode & SWCR_ALL_MASK & ~SWCR_STATUS_MASK)

	  | (swcr & SWCR_STATUS_MASK));

  __ieee_set_fp_control (swcr);

  return 0;

}