DataBlock.cc revision 9181 
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#include "mem/ruby/common/DataBlock.hh"
30#include "mem/ruby/system/System.hh"
31
32DataBlock::DataBlock(const DataBlock &cp)
33{
34    m_data = new uint8[RubySystem::getBlockSizeBytes()];
35    memcpy(m_data, cp.m_data, RubySystem::getBlockSizeBytes());
36    m_alloc = true;
37}
38
39void
40DataBlock::alloc()
41{
42    m_data = new uint8[RubySystem::getBlockSizeBytes()];
43    m_alloc = true;
44    clear();
45}
46
47void
48DataBlock::clear()
49{
50    memset(m_data, 0, RubySystem::getBlockSizeBytes());
51}
52
53bool
54DataBlock::equal(const DataBlock& obj) const
55{
56    return !memcmp(m_data, obj.m_data, RubySystem::getBlockSizeBytes());
57}
58
59void
60DataBlock::print(std::ostream& out) const
61{
62    using namespace std;
63
64    int size = RubySystem::getBlockSizeBytes();
65    out << "[ ";
66    for (int i = 0; i < size; i++) {
67        out << setw(2) << setfill('0') << hex << "0x" << (int)m_data[i] << " ";
68        out << setfill(' ');
69    }
70    out << dec << "]" << flush;
71}
72
73const uint8*
74DataBlock::getData(int offset, int len) const
75{
76    assert(offset + len <= RubySystem::getBlockSizeBytes());
77    return &m_data[offset];
78}
79
80void
81DataBlock::setData(uint8* data, int offset, int len)
82{
83    assert(offset + len <= RubySystem::getBlockSizeBytes());
84    memcpy(&m_data[offset], data, len);
85}
86
87DataBlock &
88DataBlock::operator=(const DataBlock & obj)
89{
90    memcpy(m_data, obj.m_data, RubySystem::getBlockSizeBytes());
91    return *this;
92}
93