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/*
* Copyright (c) 2006 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: Ali Saidi
*/
#include <iostream>
#include "base/logging.hh"
#include "base/types.hh"
#ifndef __BASE_BIGINT_HH__
#define __BASE_BIGINT_HH__
// Create a couple of large int types for atomic reads
struct m5_twin64_t {
uint64_t a;
uint64_t b;
m5_twin64_t() : a(0), b(0)
{}
m5_twin64_t(const uint64_t x) : a(x), b(x)
{}
inline m5_twin64_t& operator=(const uint64_t x)
{
a = x;
b = x;
return *this;
}
operator uint64_t()
{
panic("Tried to cram a twin64_t into an integer!\n");
return a;
}
};
struct m5_twin32_t {
uint32_t a;
uint32_t b;
m5_twin32_t()
{}
m5_twin32_t(const uint32_t x)
{
a = x;
b = x;
}
inline m5_twin32_t& operator=(const uint32_t x)
{
a = x;
b = x;
return *this;
}
operator uint32_t()
{
panic("Tried to cram a twin32_t into an integer!\n");
return a;
}
};
// This is for twin loads (two 64 bit values), not 1 128 bit value (as far as
// endian conversion is concerned!
typedef m5_twin64_t Twin64_t;
typedef m5_twin32_t Twin32_t;
// Output operator overloads
std::ostream & operator << (std::ostream & os, const Twin64_t & t);
std::ostream & operator << (std::ostream & os, const Twin32_t & t);
#endif // __BASE_BIGINT_HH__
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