55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/*
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* Copyright (C) 2012-2016 Free Software Foundation, Inc.
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*
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* This file is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 3, or (at your option) any
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* later version.
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*
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* This file is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* Under Section 7 of GPL version 3, you are granted additional
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* permissions described in the GCC Runtime Library Exception, version
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* 3.1, as published by the Free Software Foundation.
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*
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* You should have received a copy of the GNU General Public License and
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* a copy of the GCC Runtime Library Exception along with this program;
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* see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "sfp-machine.h"
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void
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__sfp_handle_exceptions (int _fex)
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{
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double d;
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if (_fex & FP_EX_INVALID)
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{
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asm volatile ("frcpa.s0 %0, p1 = f0, f0" : "=f" (d) : : "p1");
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}
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if (_fex & FP_EX_DIVZERO)
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{
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asm volatile ("frcpa.s0 %0, p1 = f1, f0" : "=f" (d) : : "p1");
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}
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if (_fex & FP_EX_OVERFLOW)
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{
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d = __DBL_MAX__;
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asm volatile ("fadd.d.s0 %0 = %0, %0" : "+f" (d));
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}
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if (_fex & FP_EX_UNDERFLOW)
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{
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d = __DBL_MIN__;
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asm volatile ("fnma.d.s0 %0 = %0, %0, f0" : "+f" (d));
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}
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if (_fex & FP_EX_INEXACT)
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{
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d = __DBL_MAX__;
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asm volatile ("fsub.d.s0 %0 = %0, f1" : "+f" (d));
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}
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}
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