SubBlock.cc revision 6145:15cca6ab723a 
1
2/*
3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;
10 * redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution;
13 * neither the name of the copyright holders nor the names of its
14 * contributors may be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
18 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
19 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
20 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
21 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * $Id$
32 */
33
34#include "SubBlock.hh"
35
36SubBlock::SubBlock(const Address& addr, int size)
37{
38  m_address = addr;
39  setSize(size);
40  for(int i=0; i<size; i++) {
41    setByte(i, 0);
42  }
43}
44
45SubBlock::SubBlock(const Address& addr, const Address& logicalAddress, int size)
46{
47  m_address = addr;
48  m_logicalAddress = logicalAddress;
49  setSize(size);
50  for(int i=0; i<size; i++) {
51    setByte(i, 0);
52  }
53}
54
55void SubBlock::internalMergeFrom(const DataBlock& data)
56{
57  int size = getSize();
58  assert(size > 0);
59  int offset = m_address.getOffset();
60  for(int i=0; i<size; i++) {
61    this->setByte(i, data.getByte(offset+i));
62  }
63}
64
65void SubBlock::internalMergeTo(DataBlock& data) const
66{
67  int size = getSize();
68  assert(size > 0);
69  int offset = m_address.getOffset();
70  for(int i=0; i<size; i++) {
71    data.setByte(offset+i, this->getByte(i)); // This will detect crossing a cache line boundary
72  }
73}
74
75void SubBlock::print(ostream& out) const
76{
77  out << "[" << m_address << ", " << getSize() << ", " << m_data << "]";
78}
79
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