Viewing file:  sfp-exceptions.c (1.63 KB) -rw-r--r--
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/*
* Copyright (C) 2012-2022 Free Software Foundation, Inc.
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 3, or (at your option) any
* later version.
*
* This file 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
* General Public License for more details.
*
* Under Section 7 of GPL version 3, you are granted additional
* permissions described in the GCC Runtime Library Exception, version
* 3.1, as published by the Free Software Foundation.
*
* You should have received a copy of the GNU General Public License and
* a copy of the GCC Runtime Library Exception along with this program;
* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "sfp-machine.h"
void
__sfp_handle_exceptions (int _fex)
{
double d;
if (_fex & FP_EX_INVALID)
{
asm volatile ("frcpa.s0 %0, p1 = f0, f0" : "=f" (d) : : "p1");
}
if (_fex & FP_EX_DIVZERO)
{
asm volatile ("frcpa.s0 %0, p1 = f1, f0" : "=f" (d) : : "p1");
}
if (_fex & FP_EX_OVERFLOW)
{
d = __DBL_MAX__;
asm volatile ("fadd.d.s0 %0 = %0, %0" : "+f" (d));
}
if (_fex & FP_EX_UNDERFLOW)
{
d = __DBL_MIN__;
asm volatile ("fnma.d.s0 %0 = %0, %0, f0" : "+f" (d));
}
if (_fex & FP_EX_INEXACT)
{
d = __DBL_MAX__;
asm volatile ("fsub.d.s0 %0 = %0, f1" : "+f" (d));
}
}
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