[thirdparty/glibc.git] / sysdeps / m68k / fpu / feupdateenv.c

/* Install given floating-point environment and raise exceptions.
   Copyright (C) 1997 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#include <fenv.h>

void
feupdateenv (const fenv_t *envp)
{
  fexcept_t fpsr;

  /* Save current exceptions.  */
  __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
  fpsr &= FE_ALL_EXCEPT;

  /* Install new environment.  */
  fesetenv (envp);

  /* Raise the saved exception.  Incidently for us the implementation
     defined format of the values in objects of type fexcept_t is the
     same as the ones specified using the FE_* constants.  */
  feraiseexcept ((int) fpsr);
}
Commit	Line	Data
c72aa4a2 UD	1	/* Install given floating-point environment and raise exceptions.
	2	Copyright (C) 1997 Free Software Foundation, Inc.
	3	This file is part of the GNU C Library.
	4	Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
	5
	6	The GNU C Library is free software; you can redistribute it and/or
	7	modify it under the terms of the GNU Library General Public License as
	8	published by the Free Software Foundation; either version 2 of the
	9	License, or (at your option) any later version.
	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
	14	Library General Public License for more details.
	15
	16	You should have received a copy of the GNU Library General Public
	17	License along with the GNU C Library; see the file COPYING.LIB. If not,
	18	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	19	Boston, MA 02111-1307, USA. */
	20
	21	#include <fenv.h>
	22
	23	void
	24	feupdateenv (const fenv_t *envp)
	25	{
	26	fexcept_t fpsr;
	27
	28	/* Save current exceptions. */
	29	__asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr));
	30	fpsr &= FE_ALL_EXCEPT;
	31
	32	/* Install new environment. */
	33	fesetenv (envp);
	34
	35	/* Raise the saved exception. Incidently for us the implementation
	36	defined format of the values in objects of type fexcept_t is the
	37	same as the ones specified using the FE_* constants. */
	38	feraiseexcept ((int) fpsr);
	39	}