src/mem/ruby/common/DataBlock.cc

   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 "DataBlock.hh"
  35
  36 DataBlock::DataBlock()
  37 {
  38   if (DATA_BLOCK || XACT_MEMORY) {
  39     m_data.setSize(RubyConfig::dataBlockBytes());
  40   }
  41   clear();
  42 }
  43
  44 DataBlock::~DataBlock()
  45 {
  46
  47 }
  48
  49 void DataBlock::clear()
  50 {
  51   int size = m_data.size();
  52   for (int i = 0; i < size; i++) {
  53     m_data[i] = 0;
  54   }
  55 }
  56
  57 bool DataBlock::equal(const DataBlock& obj) const
  58 {
  59   bool value = true;
  60   int size = m_data.size();
  61   for (int i = 0; i < size; i++) {
  62     value = value && (m_data[i] == obj.m_data[i]);
  63   }
  64   return value;
  65 }
  66
  67 void DataBlock::print(ostream& out) const
  68 {
  69   int size = m_data.size();
  70   for (int i = 0; i < size; i+=4) {
  71     out << hex << *((uint32*)(&(m_data[i]))) << " ";
  72   }
  73   out << dec << "]" << flush;
  74 }
  75
  76 uint8 DataBlock::getByte(int whichByte) const
  77 {
  78   if (DATA_BLOCK || XACT_MEMORY) {
  79   return m_data[whichByte];
  80   } else {
  81     return 0;
  82   }
  83 }
  84
  85 void DataBlock::setByte(int whichByte, uint8 data)
  86 {
  87   if (DATA_BLOCK || XACT_MEMORY) {
  88     m_data[whichByte] = data;
  89   }
  90 }
  91