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diff --git a/src/mem/ruby/tester/XactRequestGenerator.hh b/src/mem/ruby/tester/XactRequestGenerator.hh
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+++ b/src/mem/ruby/tester/XactRequestGenerator.hh
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+/*
+ * Copyright (c) 1999 by Mark Hill and David Wood for the Wisconsin
+ * Multifacet Project.  ALL RIGHTS RESERVED.
+ *
+ * ##HEADER##
+ *
+ * This software is furnished under a license and may be used and
+ * copied only in accordance with the terms of such license and the
+ * inclusion of the above copyright notice.  This software or any
+ * other copies thereof or any derivative works may not be provided or
+ * otherwise made available to any other persons.  Title to and
+ * ownership of the software is retained by Mark Hill and David Wood.
+ * Any use of this software must include the above copyright notice.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS".  THE LICENSOR MAKES NO
+ * WARRANTIES ABOUT ITS CORRECTNESS OR PERFORMANCE.
+ * */
+
+/*
+ * $Id: XactRequestGenerator.h 1.4 05/07/07 10:35:32-05:00 kmoore@s0-30.cs.wisc.edu $
+ *
+ * Description:
+ *
+ */
+
+#ifndef XACTREQUESTGENERATOR_H
+#define XACTREQUESTGENERATOR_H
+
+#include "global.hh"
+#include "RequestGenerator.hh"
+#include "Consumer.hh"
+#include "NodeID.hh"
+#include "Address.hh"
+#include "TransactionManager.hh"
+
+class Sequencer;
+class SubBlock;
+class SyntheticDriver;
+class Instruction;
+class TransactionManager;
+
+#define MAX_ADDRESS 16777216
+const int TESTER_MAX_DEPTH = 16;
+
+enum XactRequestGeneratorStatus {
+  XactRequestGeneratorStatus_Waiting,
+  XactRequestGeneratorStatus_Ready,
+  XactRequestGeneratorStatus_Blocked,
+  XactRequestGeneratorStatus_Aborted,
+  XactRequestGeneratorStatus_Done
+};
+
+class XactRequestGenerator : public RequestGenerator {
+public:
+  // Constructors
+  XactRequestGenerator(NodeID node, SyntheticDriver& driver);
+
+  // Destructor
+  ~XactRequestGenerator();
+
+  // Public Methods
+  void wakeup();
+  void performCallback(NodeID proc, SubBlock& data);
+  void abortTransaction();
+
+  void print(ostream& out) const;
+
+  // For dealing with NACKs/retries
+  void notifySendNack(const Address & addr, uint64 remote_timestamp, const MachineID & remote_id);
+  void notifyReceiveNack(const Address & addr, uint64 remote_timestamp, const MachineID & remote_id);
+  void notifyReceiveNackFinal(const Address & addr);
+private:
+  // Private Methods
+  int thinkTime() const;
+  int waitTime() const;
+  int holdTime() const;
+  void initiateBeginTransaction();
+  void initiateStore(Address a);
+  void initiateCommit();
+  void initiateInc(Address a);
+  void initiateLoad(Address a);
+  void initiateDone();
+  void pickAddress();
+  Sequencer* sequencer() const;
+  TransactionManager* transactionManager() const;
+  void execute();
+  void scheduleEvent(int time);
+  void checkCorrectness();
+
+  // Private copy constructor and assignment operator
+  XactRequestGenerator(const XactRequestGenerator& obj);
+  XactRequestGenerator& operator=(const XactRequestGenerator& obj);
+
+  void newTransaction(bool init);
+  void printPcStack(int depth);
+
+  // Data Members (m_ prefix)
+  SyntheticDriver& m_driver;
+  NodeID m_node;
+  XactRequestGeneratorStatus m_status;
+  int m_counter;
+  int m_size;
+  Time m_last_transition;
+  Address m_address;
+
+  Instruction *m_instructions;
+  int m_pc;
+  int pc_stack[TESTER_MAX_DEPTH];
+  bool m_transaction;
+  uint8 m_register;
+  uint8 * testArray;
+  //static uint8 dataArray[];
+  bool m_eventPending;
+
+  // for pending aborts
+  bool m_abortPending;
+};
+
+// Output operator declaration
+ostream& operator<<(ostream& out, const XactRequestGenerator& obj);
+
+// ******************* Definitions *******************
+
+// Output operator definition
+extern inline
+ostream& operator<<(ostream& out, const XactRequestGenerator& obj)
+{
+  obj.print(out);
+  out << flush;
+  return out;
+}
+
+#endif //XACTREQUESTGENERATOR_H
+