gem5
v24.0.0.0
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base
fenv.cc
Go to the documentation of this file.
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/*
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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
fenv.hh
gem5::ArmISA::rm
Bitfield< 3, 0 > rm
Definition
types.hh:118
gem5::RiscvISA::x
Bitfield< 3 > x
Definition
pagetable.hh:73
gem5
Copyright (c) 2024 - Pranith Kumar Copyright (c) 2020 Inria All rights reserved.
Definition
binary32.hh:36
gem5::RoundingMode
RoundingMode
Definition
fenv.hh:38
gem5::setFpRound
void setFpRound(RoundingMode rm)
Definition
fenv.cc:42
gem5::roundOps
static const int roundOps[]
Definition
fenv.cc:39
gem5::getFpRound
RoundingMode getFpRound()
Definition
fenv.cc:45
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