1/* 2 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer; 9 * redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution; 12 * neither the name of the copyright holders nor the names of its 13 * contributors may be used to endorse or promote products derived from 14 * this software without specific prior written permission. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef __MEM_RUBY_COMMON_DATABLOCK_HH__ 30#define __MEM_RUBY_COMMON_DATABLOCK_HH__ 31 32#include <iomanip> 33#include <iostream> 34 35#include "mem/ruby/common/Global.hh"
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36#include "mem/ruby/system/System.hh"
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36 37class DataBlock 38{ 39 public: 40 DataBlock() 41 { 42 alloc(); 43 } 44
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46 DataBlock(const DataBlock &cp)
47 {
48 m_data = new uint8[RubySystem::getBlockSizeBytes()];
49 memcpy(m_data, cp.m_data, RubySystem::getBlockSizeBytes());
50 m_alloc = true;
51 }
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45 DataBlock(const DataBlock &cp); |
46 47 ~DataBlock() 48 { 49 if (m_alloc) 50 delete [] m_data; 51 } 52 53 DataBlock& operator=(const DataBlock& obj); 54 55 void assign(uint8* data); 56 57 void clear(); 58 uint8 getByte(int whichByte) const; 59 const uint8* getData(int offset, int len) const; 60 void setByte(int whichByte, uint8 data); 61 void setData(uint8* data, int offset, int len); 62 void copyPartial(const DataBlock & dblk, int offset, int len); 63 bool equal(const DataBlock& obj) const; 64 void print(std::ostream& out) const; 65 66 private: 67 void alloc(); 68 uint8* m_data; 69 bool m_alloc; 70}; 71 72inline void 73DataBlock::assign(uint8* data) 74{ 75 if (m_alloc) { 76 delete [] m_data; 77 } 78 m_data = data; 79 m_alloc = false; 80} 81
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88inline void
89DataBlock::alloc()
90{
91 m_data = new uint8[RubySystem::getBlockSizeBytes()];
92 m_alloc = true;
93 clear();
94}
95
96inline void
97DataBlock::clear()
98{
99 memset(m_data, 0, RubySystem::getBlockSizeBytes());
100}
101
102inline bool
103DataBlock::equal(const DataBlock& obj) const
104{
105 return !memcmp(m_data, obj.m_data, RubySystem::getBlockSizeBytes());
106}
107
108inline void
109DataBlock::print(std::ostream& out) const
110{
111 using namespace std;
112
113 int size = RubySystem::getBlockSizeBytes();
114 out << "[ ";
115 for (int i = 0; i < size; i++) {
116 out << setw(2) << setfill('0') << hex << "0x" << (int)m_data[i] << " ";
117 out << setfill(' ');
118 }
119 out << dec << "]" << flush;
120}
121
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82inline uint8 83DataBlock::getByte(int whichByte) const 84{ 85 return m_data[whichByte]; 86} 87
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128inline const uint8*
129DataBlock::getData(int offset, int len) const
130{
131 assert(offset + len <= RubySystem::getBlockSizeBytes());
132 return &m_data[offset];
133}
134
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88inline void 89DataBlock::setByte(int whichByte, uint8 data) 90{ 91 m_data[whichByte] = data; 92} 93 94inline void
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142DataBlock::setData(uint8* data, int offset, int len)
143{
144 assert(offset + len <= RubySystem::getBlockSizeBytes());
145 memcpy(&m_data[offset], data, len);
146}
147
148inline void
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95DataBlock::copyPartial(const DataBlock & dblk, int offset, int len) 96{ 97 setData(&dblk.m_data[offset], offset, len); 98} 99 100inline std::ostream& 101operator<<(std::ostream& out, const DataBlock& obj) 102{ 103 obj.print(out); 104 out << std::flush; 105 return out; 106} 107 108inline bool 109operator==(const DataBlock& obj1,const DataBlock& obj2) 110{ 111 return obj1.equal(obj2); 112} 113 114#endif // __MEM_RUBY_COMMON_DATABLOCK_HH__
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