DataBlock.hh revision 6285
16145Snate@binkert.org 26145Snate@binkert.org/* 36145Snate@binkert.org * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 46145Snate@binkert.org * All rights reserved. 56145Snate@binkert.org * 66145Snate@binkert.org * Redistribution and use in source and binary forms, with or without 76145Snate@binkert.org * modification, are permitted provided that the following conditions are 86145Snate@binkert.org * met: redistributions of source code must retain the above copyright 96145Snate@binkert.org * notice, this list of conditions and the following disclaimer; 106145Snate@binkert.org * redistributions in binary form must reproduce the above copyright 116145Snate@binkert.org * notice, this list of conditions and the following disclaimer in the 126145Snate@binkert.org * documentation and/or other materials provided with the distribution; 136145Snate@binkert.org * neither the name of the copyright holders nor the names of its 146145Snate@binkert.org * contributors may be used to endorse or promote products derived from 156145Snate@binkert.org * this software without specific prior written permission. 166145Snate@binkert.org * 176145Snate@binkert.org * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 186145Snate@binkert.org * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 196145Snate@binkert.org * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 206145Snate@binkert.org * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 216145Snate@binkert.org * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 226145Snate@binkert.org * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 236145Snate@binkert.org * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 246145Snate@binkert.org * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 256145Snate@binkert.org * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 266145Snate@binkert.org * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 276145Snate@binkert.org * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 286145Snate@binkert.org */ 296145Snate@binkert.org 306145Snate@binkert.org#ifndef DATABLOCK_H 316145Snate@binkert.org#define DATABLOCK_H 326145Snate@binkert.org 336154Snate@binkert.org#include "mem/ruby/common/Global.hh" 346285Snate@binkert.org#include "mem/ruby/system/System.hh" 356154Snate@binkert.org#include "mem/gems_common/Vector.hh" 366145Snate@binkert.org 376145Snate@binkert.orgclass DataBlock { 386285Snate@binkert.org public: 396145Snate@binkert.org // Constructors 406285Snate@binkert.org DataBlock() {alloc();} 416285Snate@binkert.org DataBlock(const DataBlock & cp) { 426285Snate@binkert.org m_data = new uint8[RubySystem::getBlockSizeBytes()]; 436285Snate@binkert.org memcpy(m_data, cp.m_data, RubySystem::getBlockSizeBytes()); 446285Snate@binkert.org m_alloc = true; 456285Snate@binkert.org } 466145Snate@binkert.org 476145Snate@binkert.org // Destructor 486285Snate@binkert.org ~DataBlock() { if(m_alloc) delete [] m_data;} 496285Snate@binkert.org 506285Snate@binkert.org DataBlock& operator=(const DataBlock& obj); 516145Snate@binkert.org 526145Snate@binkert.org // Public Methods 536285Snate@binkert.org void assign(uint8* data); 546285Snate@binkert.org 556145Snate@binkert.org void clear(); 566145Snate@binkert.org uint8 getByte(int whichByte) const; 576285Snate@binkert.org const uint8* getData(int offset, int len) const; 586145Snate@binkert.org void setByte(int whichByte, uint8 data); 596285Snate@binkert.org void setData(uint8* data, int offset, int len); 606285Snate@binkert.org void copyPartial(const DataBlock & dblk, int offset, int len); 616145Snate@binkert.org bool equal(const DataBlock& obj) const; 626145Snate@binkert.org void print(ostream& out) const; 636145Snate@binkert.org 646145Snate@binkert.orgprivate: 656285Snate@binkert.org void alloc(); 666145Snate@binkert.org // Data Members (m_ prefix) 676285Snate@binkert.org uint8* m_data; 686285Snate@binkert.org bool m_alloc; 696145Snate@binkert.org}; 706145Snate@binkert.org 716145Snate@binkert.org// Output operator declaration 726145Snate@binkert.orgostream& operator<<(ostream& out, const DataBlock& obj); 736145Snate@binkert.org 746145Snate@binkert.orgbool operator==(const DataBlock& obj1, const DataBlock& obj2); 756145Snate@binkert.org 766285Snate@binkert.org// inline functions for speed 776285Snate@binkert.org 786285Snate@binkert.orginline 796285Snate@binkert.orgvoid DataBlock::assign(uint8* data) 806285Snate@binkert.org{ 816285Snate@binkert.org delete [] m_data; 826285Snate@binkert.org m_data = data; 836285Snate@binkert.org m_alloc = false; 846285Snate@binkert.org} 856285Snate@binkert.org 866285Snate@binkert.orginline 876285Snate@binkert.orgvoid DataBlock::alloc() 886285Snate@binkert.org{ 896285Snate@binkert.org m_data = new uint8[RubySystem::getBlockSizeBytes()]; 906285Snate@binkert.org m_alloc = true; 916285Snate@binkert.org clear(); 926285Snate@binkert.org} 936285Snate@binkert.org 946285Snate@binkert.orginline 956285Snate@binkert.orgvoid DataBlock::clear() 966285Snate@binkert.org{ 976285Snate@binkert.org memset(m_data, 0, RubySystem::getBlockSizeBytes()); 986285Snate@binkert.org} 996285Snate@binkert.org 1006285Snate@binkert.orginline 1016285Snate@binkert.orgbool DataBlock::equal(const DataBlock& obj) const 1026285Snate@binkert.org{ 1036285Snate@binkert.org return !memcmp(m_data, obj.m_data, RubySystem::getBlockSizeBytes()); 1046285Snate@binkert.org} 1056285Snate@binkert.org 1066285Snate@binkert.orginline 1076285Snate@binkert.orgvoid DataBlock::print(ostream& out) const 1086285Snate@binkert.org{ 1096285Snate@binkert.org int size = RubySystem::getBlockSizeBytes(); 1106285Snate@binkert.org out << "[ "; 1116285Snate@binkert.org for (int i = 0; i < size; i+=4) { 1126285Snate@binkert.org out << hex << *((uint32*)(&(m_data[i]))) << " "; 1136285Snate@binkert.org } 1146285Snate@binkert.org out << dec << "]" << flush; 1156285Snate@binkert.org} 1166285Snate@binkert.org 1176285Snate@binkert.orginline 1186285Snate@binkert.orguint8 DataBlock::getByte(int whichByte) const 1196285Snate@binkert.org{ 1206285Snate@binkert.org return m_data[whichByte]; 1216285Snate@binkert.org} 1226285Snate@binkert.org 1236285Snate@binkert.orginline 1246285Snate@binkert.orgconst uint8* DataBlock::getData(int offset, int len) const 1256285Snate@binkert.org{ 1266285Snate@binkert.org assert(offset + len <= RubySystem::getBlockSizeBytes()); 1276285Snate@binkert.org return &m_data[offset]; 1286285Snate@binkert.org} 1296285Snate@binkert.org 1306285Snate@binkert.orginline 1316285Snate@binkert.orgvoid DataBlock::setByte(int whichByte, uint8 data) 1326285Snate@binkert.org{ 1336285Snate@binkert.org m_data[whichByte] = data; 1346285Snate@binkert.org} 1356285Snate@binkert.org 1366285Snate@binkert.orginline 1376285Snate@binkert.orgvoid DataBlock::setData(uint8* data, int offset, int len) 1386285Snate@binkert.org{ 1396285Snate@binkert.org assert(offset + len <= RubySystem::getBlockSizeBytes()); 1406285Snate@binkert.org memcpy(&m_data[offset], data, len); 1416285Snate@binkert.org} 1426285Snate@binkert.org 1436285Snate@binkert.orginline 1446285Snate@binkert.orgvoid DataBlock::copyPartial(const DataBlock & dblk, int offset, int len) 1456285Snate@binkert.org{ 1466285Snate@binkert.org setData(&dblk.m_data[offset], offset, len); 1476285Snate@binkert.org} 1486145Snate@binkert.org 1496145Snate@binkert.org// ******************* Definitions ******************* 1506145Snate@binkert.org 1516145Snate@binkert.org// Output operator definition 1526145Snate@binkert.orgextern inline 1536145Snate@binkert.orgostream& operator<<(ostream& out, const DataBlock& obj) 1546145Snate@binkert.org{ 1556145Snate@binkert.org obj.print(out); 1566145Snate@binkert.org out << flush; 1576145Snate@binkert.org return out; 1586145Snate@binkert.org} 1596145Snate@binkert.org 1606145Snate@binkert.orgextern inline 1616145Snate@binkert.orgbool operator==(const DataBlock& obj1,const DataBlock& obj2) 1626145Snate@binkert.org{ 1636145Snate@binkert.org return (obj1.equal(obj2)); 1646145Snate@binkert.org} 1656145Snate@binkert.org 1666145Snate@binkert.org#endif //DATABLOCK_H 167