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authorNathan Binkert <nate@binkert.org>2009-05-11 10:38:43 -0700
committerNathan Binkert <nate@binkert.org>2009-05-11 10:38:43 -0700
commit2f30950143cc70bc42a3c8a4111d7cf8198ec881 (patch)
tree708f6c22edb3c6feb31dd82866c26623a5329580 /src/mem/ruby/common/SubBlock.hh
parentc70241810d4e4f523f173c1646b008dc40faad8e (diff)
downloadgem5-2f30950143cc70bc42a3c8a4111d7cf8198ec881.tar.xz
ruby: Import ruby and slicc from GEMS
We eventually plan to replace the m5 cache hierarchy with the GEMS hierarchy, but for now we will make both live alongside eachother.
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+
+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * $Id$
+ *
+ */
+
+#ifndef SubBlock_H
+#define SubBlock_H
+
+#include "Global.hh"
+#include "Address.hh"
+#include "RubyConfig.hh"
+#include "DataBlock.hh"
+#include "Vector.hh"
+
+class SubBlock {
+public:
+ // Constructors
+ SubBlock() { }
+ SubBlock(const Address& addr, int size);
+ SubBlock(const Address& addr, const Address& logicalAddress, int size);
+
+ // Destructor
+ ~SubBlock() { }
+
+ // Public Methods
+ const Address& getAddress() const { return m_address; }
+ const Address& getLogicalAddress() const { return m_logicalAddress; }
+ void setAddress(const Address& addr) { m_address = addr; }
+ void setLogicalAddress(const Address& addr) { m_logicalAddress = addr; }
+
+ int getSize() const { return m_data.size(); }
+ void setSize(int size) { m_data.setSize(size); }
+ uint8 getByte(int offset) const { return m_data[offset]; }
+ void setByte(int offset, uint8 data) { m_data[offset] = data; }
+
+ // Shorthands
+ uint8 readByte() const { return getByte(0); }
+ void writeByte(uint8 data) { setByte(0, data); }
+
+ // Merging to and from DataBlocks - We only need to worry about
+ // updates when we are using DataBlocks
+ void mergeTo(DataBlock& data) const { if (DATA_BLOCK) { internalMergeTo(data); } }
+ void mergeFrom(const DataBlock& data) { if (DATA_BLOCK) { internalMergeFrom(data); } }
+
+ void print(ostream& out) const;
+private:
+ // Private Methods
+ // SubBlock(const SubBlock& obj);
+ // SubBlock& operator=(const SubBlock& obj);
+ // bool bytePresent(const Address& addr) { return ((addr.getAddress() >= m_address.getAddress()) && (addr.getAddress() < (m_address.getAddress()+getSize()))); }
+ // uint8 getByte(const Address& addr) { return m_data[addr.getAddress() - m_address.getAddress()]; }
+
+ void internalMergeTo(DataBlock& data) const;
+ void internalMergeFrom(const DataBlock& data);
+
+ // Data Members (m_ prefix)
+ Address m_address;
+ Address m_logicalAddress;
+ Vector<uint> m_data;
+};
+
+// Output operator declaration
+ostream& operator<<(ostream& out, const SubBlock& obj);
+
+// ******************* Definitions *******************
+
+// Output operator definition
+extern inline
+ostream& operator<<(ostream& out, const SubBlock& obj)
+{
+ obj.print(out);
+ out << flush;
+ return out;
+}
+
+#endif //SubBlock_H