/* Enable floating-point exceptions.   Copyright (C) 2001, 2007 Free Software Foundation, Inc.   This file is part of the GNU C Library.   Contributed by Andreas Jaeger <aj@suse.de>, 2001.   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, write to the Free   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA   02111-1307 USA.  */#include <fenv.h>intfeenableexcept (int excepts){  unsigned short int new_exc, old_exc;  unsigned int new;  excepts &= FE_ALL_EXCEPT;  /* Get the current control word of the x87 FPU.  */  __asm__ ("fstcw %0" : "=m" (*&new_exc));  old_exc = (~new_exc) & FE_ALL_EXCEPT;  new_exc &= ~excepts;  __asm__ ("fldcw %0" : : "m" (*&new_exc));  /* And now the same for the SSE MXCSR register.  */  __asm__ ("stmxcsr %0" : "=m" (*&new));  /* The SSE exception masks are shifted by 7 bits.  */  new &= ~(excepts << 7);  __asm__ ("ldmxcsr %0" : : "m" (*&new));  return old_exc;}