SubBlock.cc revision 6145
112841Sgabeblack@google.com 212841Sgabeblack@google.com/* 312841Sgabeblack@google.com * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 412841Sgabeblack@google.com * All rights reserved. 512841Sgabeblack@google.com * 612841Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 712841Sgabeblack@google.com * modification, are permitted provided that the following conditions are 812841Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 912841Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 1012841Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1112841Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1212841Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1312841Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1412841Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1512841Sgabeblack@google.com * this software without specific prior written permission. 1612841Sgabeblack@google.com * 1712841Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1812841Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1912841Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2012841Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2112841Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2212841Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2312841Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2412841Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2512841Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2612841Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2712841Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2812841Sgabeblack@google.com */ 2912841Sgabeblack@google.com 3012841Sgabeblack@google.com/* 3112841Sgabeblack@google.com * $Id$ 3212841Sgabeblack@google.com */ 3313201Sgabeblack@google.com 3412841Sgabeblack@google.com#include "SubBlock.hh" 3512841Sgabeblack@google.com 3612841Sgabeblack@google.comSubBlock::SubBlock(const Address& addr, int size) 3712841Sgabeblack@google.com{ 3812841Sgabeblack@google.com m_address = addr; 3912853Sgabeblack@google.com setSize(size); 4012841Sgabeblack@google.com for(int i=0; i<size; i++) { 4112841Sgabeblack@google.com setByte(i, 0); 4212841Sgabeblack@google.com } 4312841Sgabeblack@google.com} 4412853Sgabeblack@google.com 4512841Sgabeblack@google.comSubBlock::SubBlock(const Address& addr, const Address& logicalAddress, int size) 4612841Sgabeblack@google.com{ 4712841Sgabeblack@google.com m_address = addr; 4812841Sgabeblack@google.com m_logicalAddress = logicalAddress; 4913201Sgabeblack@google.com setSize(size); 5012841Sgabeblack@google.com for(int i=0; i<size; i++) { 5112841Sgabeblack@google.com setByte(i, 0); 5212841Sgabeblack@google.com } 5312841Sgabeblack@google.com} 5412841Sgabeblack@google.com 5512841Sgabeblack@google.comvoid SubBlock::internalMergeFrom(const DataBlock& data) 5612841Sgabeblack@google.com{ 5712841Sgabeblack@google.com int size = getSize(); 5812841Sgabeblack@google.com assert(size > 0); 5912841Sgabeblack@google.com int offset = m_address.getOffset(); 6012841Sgabeblack@google.com for(int i=0; i<size; i++) { 6112841Sgabeblack@google.com this->setByte(i, data.getByte(offset+i)); 6212841Sgabeblack@google.com } 6312841Sgabeblack@google.com} 6413201Sgabeblack@google.com 6512841Sgabeblack@google.comvoid SubBlock::internalMergeTo(DataBlock& data) const 6612841Sgabeblack@google.com{ 6712841Sgabeblack@google.com int size = getSize(); 6813201Sgabeblack@google.com assert(size > 0); 6912841Sgabeblack@google.com int offset = m_address.getOffset(); 7012841Sgabeblack@google.com for(int i=0; i<size; i++) { 7112841Sgabeblack@google.com data.setByte(offset+i, this->getByte(i)); // This will detect crossing a cache line boundary 7212841Sgabeblack@google.com } 7312841Sgabeblack@google.com} 74 75void SubBlock::print(ostream& out) const 76{ 77 out << "[" << m_address << ", " << getSize() << ", " << m_data << "]"; 78} 79 80 81 82