SubBlock.cc revision 11793 
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/SubBlock.hh"
30
31#include "base/stl_helpers.hh"
32
33using m5::stl_helpers::operator<<;
34
35SubBlock::SubBlock(Addr addr, int size)
36{
37    m_address = addr;
38    resize(size);
39    for (int i = 0; i < size; i++) {
40        setByte(i, 0);
41    }
42}
43
44void
45SubBlock::internalMergeFrom(const DataBlock& data)
46{
47    int size = getSize();
48    assert(size > 0);
49    int offset = getOffset(m_address);
50    for (int i = 0; i < size; i++) {
51        this->setByte(i, data.getByte(offset + i));
52    }
53}
54
55void
56SubBlock::internalMergeTo(DataBlock& data) const
57{
58    int size = getSize();
59    assert(size > 0);
60    int offset = getOffset(m_address);
61    for (int i = 0; i < size; i++) {
62        // This will detect crossing a cache line boundary
63        data.setByte(offset + i, this->getByte(i));
64    }
65}
66
67void
68SubBlock::print(std::ostream& out) const
69{
70    out << "[" << m_address << ", " << getSize() << ", " << m_data << "]";
71}
72
73
74
75