/* Store current floating-point environment and clear exceptions. Copyright (C) 1997, 1999 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> int feholdexcept (fenv_t *envp) { fexcept_t fpcr, fpsr; /* Store the environment. */ __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp)); /* Now clear all exceptions. */ fpsr = envp->__status_register & ~FE_ALL_EXCEPT; __asm__ __volatile__ ("fmove%.l %0,%/fpsr" : : "dm" (fpsr)); /* And set all exceptions to non-stop. */ fpcr = envp->__control_register & ~(FE_ALL_EXCEPT << 6); __asm__ __volatile__ ("fmove%.l %0,%!" : : "dm" (fpcr)); return 0; }