gem5/src/mem/ruby/common/SubBlock.hh

106 lines
3.7 KiB
C++
Raw Normal View History

/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* 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.
*/
/*
* $Id$
*
*/
#ifndef SubBlock_H
#define SubBlock_H
#include "Global.hh"
#include "Address.hh"
#include "RubyConfig.hh"
#include "DataBlock.hh"
#include "Vector.hh"
class SubBlock {
public:
// Constructors
SubBlock() { }
SubBlock(const Address& addr, int size);
SubBlock(const Address& addr, const Address& logicalAddress, int size);
// Destructor
~SubBlock() { }
// Public Methods
const Address& getAddress() const { return m_address; }
const Address& getLogicalAddress() const { return m_logicalAddress; }
void setAddress(const Address& addr) { m_address = addr; }
void setLogicalAddress(const Address& addr) { m_logicalAddress = addr; }
int getSize() const { return m_data.size(); }
void setSize(int size) { m_data.setSize(size); }
uint8 getByte(int offset) const { return m_data[offset]; }
void setByte(int offset, uint8 data) { m_data[offset] = data; }
// Shorthands
uint8 readByte() const { return getByte(0); }
void writeByte(uint8 data) { setByte(0, data); }
// Merging to and from DataBlocks - We only need to worry about
// updates when we are using DataBlocks
void mergeTo(DataBlock& data) const { if (DATA_BLOCK) { internalMergeTo(data); } }
void mergeFrom(const DataBlock& data) { if (DATA_BLOCK) { internalMergeFrom(data); } }
void print(ostream& out) const;
private:
// Private Methods
// SubBlock(const SubBlock& obj);
// SubBlock& operator=(const SubBlock& obj);
// bool bytePresent(const Address& addr) { return ((addr.getAddress() >= m_address.getAddress()) && (addr.getAddress() < (m_address.getAddress()+getSize()))); }
// uint8 getByte(const Address& addr) { return m_data[addr.getAddress() - m_address.getAddress()]; }
void internalMergeTo(DataBlock& data) const;
void internalMergeFrom(const DataBlock& data);
// Data Members (m_ prefix)
Address m_address;
Address m_logicalAddress;
Vector<uint> m_data;
};
// Output operator declaration
ostream& operator<<(ostream& out, const SubBlock& obj);
// ******************* Definitions *******************
// Output operator definition
extern inline
ostream& operator<<(ostream& out, const SubBlock& obj)
{
obj.print(out);
out << flush;
return out;
}
#endif //SubBlock_H