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/* Raise given exceptions.
Copyright (C) 2000, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Jaeger <aj@suse.de>, 2000.
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>
#include <fenv_libc.h>
#include <fpu_control.h>
int
feraiseexcept (int excepts)
{
fpu_control_t cw;
/* Get current state. */
_FPU_GETCW (cw);
/* Set flag bits (which are accumulative), and *also* set the
cause bits. The setting of the cause bits is what actually causes
the hardware to generate the exception, if the corresponding enable
bit is set as well. */
excepts &= FE_ALL_EXCEPT;
cw |= excepts | (excepts << CAUSE_SHIFT);
/* Set new state. */
_FPU_SETCW (cw);
return 0;
}
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