e8ace88e89
(which defines fenv) doesn't necessarily extend to c++ and it is a problem with solaris. If really
desired this could wrap the ieeefp interface found in bsd* as well, but I see no need at the moment.
src/arch/alpha/isa/fp.isa:
src/arch/sparc/isa/formats/basic.isa:
use m5_fesetround()/m5_fegetround() istead of fenv interface directly
src/arch/sparc/isa/includes.isa:
use base/fenv instead of fenv directly
src/base/SConscript:
add fenv to sconscript
src/base/fenv.hh:
src/base/random.cc:
m5 implementation to standerdize fenv across platforms.
--HG--
extra : convert_revision : 38d2629affd964dcd1a5ab0db4ac3cb21438e72c
87 lines
2.3 KiB
C++
87 lines
2.3 KiB
C++
/*
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* Copyright (c) 2003-2005 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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* Authors: Nathan Binkert
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* Ali Saidi
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*/
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#ifdef __SUNPRO_CC
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#include <stdlib.h>
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#include <math.h>
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#endif
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#include <cstdlib>
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#include <cmath>
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#include "base/random.hh"
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using namespace std;
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uint32_t
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getInt32()
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{
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return mrand48() & 0xffffffff;
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}
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double
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getDouble()
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{
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return drand48();
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}
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double
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m5round(double r)
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{
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#if defined(__sun)
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double val;
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int oldrnd = m5_fegetround();
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m5_fesetround(M5_FP_TONEAREST);
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val = rint(r);
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m5_fesetround(oldrnd);
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return val;
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#else
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return round(r);
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#endif
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}
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int64_t
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getUniform(int64_t min, int64_t max)
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{
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double r;
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r = drand48() * (max-min) + min;
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return (int64_t)m5round(r);
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}
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uint64_t
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getUniformPos(uint64_t min, uint64_t max)
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{
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double r;
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r = drand48() * (max-min) + min;
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return (uint64_t)m5round(r);
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}
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