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/*
* Copyright (c) 2007 The Hewlett-Packard Development Company
* All rights reserved.
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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.
*/
#ifndef __ARCH_X86_PCSTATE_HH__
#define __ARCH_X86_PCSTATE_HH__
#include "arch/generic/types.hh"
#include "sim/serialize.hh"
namespace gem5
{
namespace X86ISA
{
class PCState : public GenericISA::UPCState<8>
{
protected:
typedef GenericISA::UPCState<8> Base;
uint8_t _size;
public:
void
set(Addr val)
{
Base::set(val);
_size = 0;
}
PCState() {}
PCState(Addr val) { set(val); }
void
setNPC(Addr val)
{
Base::setNPC(val);
_size = 0;
}
uint8_t size() const { return _size; }
void size(uint8_t newSize) { _size = newSize; }
bool
branching() const
{
return (this->npc() != this->pc() + size()) ||
(this->nupc() != this->upc() + 1);
}
void
advance()
{
Base::advance();
_size = 0;
}
void
uEnd()
{
Base::uEnd();
_size = 0;
}
void
serialize(CheckpointOut &cp) const
{
Base::serialize(cp);
SERIALIZE_SCALAR(_size);
}
void
unserialize(CheckpointIn &cp)
{
Base::unserialize(cp);
UNSERIALIZE_SCALAR(_size);
}
};
} // namespace X86ISA
} // namespace gem5
#endif // __ARCH_X86_PCSTATE_HH__