ab65690895
This was written in C, broke the style guide, used macros, used an obsolete m5_ prefix, and used extern "C" in an odd way. Change-Id: If38f9a1bca6fd4a4f7f533ddb1e81d6207bc9c44 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/40878 Reviewed-by: Gabe Black <gabe.black@gmail.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Gabe Black <gabe.black@gmail.com> Tested-by: kokoro <noreply+kokoro@google.com>
55 lines
2.0 KiB
C++
55 lines
2.0 KiB
C++
/*
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* Copyright 2021 Google Inc.
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* Copyright (c) 2007 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "base/fenv.hh"
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#include <fenv.h>
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#include <cstdlib>
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namespace gem5
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{
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static const int roundOps[] =
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{ FE_DOWNWARD, FE_TONEAREST, FE_TOWARDZERO, FE_UPWARD };
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void setFpRound(RoundingMode rm) { fesetround(roundOps[(int)rm]); }
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RoundingMode
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getFpRound()
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{
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int rm = fegetround();
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for (int x = 0; x < 4; x++)
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if (roundOps[x] == rm)
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return (RoundingMode)x;
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abort();
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}
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} // namespace gem5
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