SubBlock.cc revision 11793
112841Sgabeblack@google.com/* 212841Sgabeblack@google.com * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 312841Sgabeblack@google.com * All rights reserved. 412841Sgabeblack@google.com * 512841Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612841Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712841Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812841Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912841Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012841Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112841Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212841Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312841Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412841Sgabeblack@google.com * this software without specific prior written permission. 1512841Sgabeblack@google.com * 1612841Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712841Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812841Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912841Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012841Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112841Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212841Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312841Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412841Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512841Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612841Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712841Sgabeblack@google.com */ 2812841Sgabeblack@google.com 2912841Sgabeblack@google.com#include "mem/ruby/common/SubBlock.hh" 3012841Sgabeblack@google.com 3112841Sgabeblack@google.com#include "base/stl_helpers.hh" 3212841Sgabeblack@google.com 3312841Sgabeblack@google.comusing m5::stl_helpers::operator<<; 3412841Sgabeblack@google.com 3513071Sgabeblack@google.comSubBlock::SubBlock(Addr addr, int size) 3612841Sgabeblack@google.com{ 3713071Sgabeblack@google.com m_address = addr; 3813245Sgabeblack@google.com resize(size); 3912841Sgabeblack@google.com for (int i = 0; i < size; i++) { 4012841Sgabeblack@google.com setByte(i, 0); 4112841Sgabeblack@google.com } 4212841Sgabeblack@google.com} 4312841Sgabeblack@google.com 4412841Sgabeblack@google.comvoid 4512841Sgabeblack@google.comSubBlock::internalMergeFrom(const DataBlock& data) 4612841Sgabeblack@google.com{ 4712841Sgabeblack@google.com int size = getSize(); 4812841Sgabeblack@google.com assert(size > 0); 4912841Sgabeblack@google.com int offset = getOffset(m_address); 5012841Sgabeblack@google.com for (int i = 0; i < size; i++) { 5112841Sgabeblack@google.com this->setByte(i, data.getByte(offset + i)); 5212841Sgabeblack@google.com } 5312841Sgabeblack@google.com} 5412841Sgabeblack@google.com 5512841Sgabeblack@google.comvoid 5612841Sgabeblack@google.comSubBlock::internalMergeTo(DataBlock& data) const 5712841Sgabeblack@google.com{ 5813071Sgabeblack@google.com int size = getSize(); 5913071Sgabeblack@google.com assert(size > 0); 6013071Sgabeblack@google.com int offset = getOffset(m_address); 6112841Sgabeblack@google.com for (int i = 0; i < size; i++) { 6213071Sgabeblack@google.com // This will detect crossing a cache line boundary 6313071Sgabeblack@google.com data.setByte(offset + i, this->getByte(i)); 6412841Sgabeblack@google.com } 6513071Sgabeblack@google.com} 6612841Sgabeblack@google.com 6712868Sgabeblack@google.comvoid 6812868Sgabeblack@google.comSubBlock::print(std::ostream& out) const 6913071Sgabeblack@google.com{ 7013071Sgabeblack@google.com out << "[" << m_address << ", " << getSize() << ", " << m_data << "]"; 7112868Sgabeblack@google.com} 7212868Sgabeblack@google.com 7313071Sgabeblack@google.com 7413071Sgabeblack@google.com 7512868Sgabeblack@google.com