[thirdparty/glibc.git] / sysdeps / s390 / fpu / fedisblxcpt.c

/* Disable floating-point exceptions.
   Copyright (C) 2000-2014 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).

   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>
#include <fpu_control.h>

int
fedisableexcept (int excepts)
{
  fexcept_t temp, old_exc, new_flags;

  _FPU_GETCW (temp);
  old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT;
  new_flags = (temp & (~((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT)));
  _FPU_SETCW (new_flags);

  return old_exc;
}
Commit	Line	Data
0067c4cf	1	/* Disable floating-point exceptions.
d4697bc9	2	Copyright (C) 2000-2014 Free Software Foundation, Inc.
0067c4cf AJ	3	This file is part of the GNU C Library.
	4	Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
	5
	6	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
0067c4cf AJ	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	14	Lesser General Public License for more details.
0067c4cf	15
41bdb6e2	16	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
0067c4cf AJ	19
	20	#include <fenv_libc.h>
	21	#include <fpu_control.h>
	22
	23	int
	24	fedisableexcept (int excepts)
	25	{
	26	fexcept_t temp, old_exc, new_flags;
	27
	28	_FPU_GETCW (temp);
	29	old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT;
	30	new_flags = (temp & (~((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT)));
	31	_FPU_SETCW (new_flags);
	32
	33	return old_exc;
	34	}