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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Steve Reinhardt
* Gabe Black
*/
#ifndef __ARCH_ALPHA_FLOATREGFILE_HH__
#define __ARCH_ALPHA_FLOATREGFILE_HH__
#include <iosfwd>
#include <string>
#include "arch/alpha/isa_traits.hh"
#include "arch/alpha/types.hh"
class Checkpoint;
namespace AlphaISA {
const int SingleWidth = 32;
const int SingleBytes = SingleWidth / 4;
const int DoubleWidth = 64;
const int DoubleBytes = DoubleWidth / 4;
const int QuadWidth = 128;
const int QuadBytes = QuadWidth / 4;
class FloatRegFile
{
public:
static const int regWidth = DoubleWidth;
union {
uint64_t q[NumFloatRegs]; // integer qword view
double d[NumFloatRegs]; // double-precision floating point view
};
void clear();
void serialize(std::ostream &os);
void unserialize(Checkpoint *cp, const std::string §ion);
FloatReg
readReg(int floatReg)
{
return d[floatReg];
}
FloatReg
readReg(int floatReg, int width)
{
return readReg(floatReg);
}
FloatRegBits
readRegBits(int floatReg)
{
return q[floatReg];
}
FloatRegBits
readRegBits(int floatReg, int width)
{
return readRegBits(floatReg);
}
void
setReg(int floatReg, const FloatReg &val)
{
d[floatReg] = val;
}
void
setReg(int floatReg, const FloatReg &val, int width)
{
setReg(floatReg, val);
}
void
setRegBits(int floatReg, const FloatRegBits &val)
{
q[floatReg] = val;
}
void
setRegBits(int floatReg, const FloatRegBits &val, int width)
{
setRegBits(floatReg, val);
}
};
} // namespace AlphaISA
#endif // __ARCH_ALPHA_FLOATREGFILE_HH__
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