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diff --git a/src/cpu/testers/rubytest/Check.hh b/src/cpu/testers/rubytest/Check.hh
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+++ b/src/cpu/testers/rubytest/Check.hh
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+/*
+ * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+ * Copyright (c) 2009 Advanced Micro Devices, Inc.
+ * 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.
+ */
+
+#ifndef __CPU_RUBYTEST_CHECK_HH__
+#define __CPU_RUBYTEST_CHECK_HH__
+
+#include <iostream>
+
+#include "cpu/testers/rubytest/RubyTester.hh"
+#include "mem/protocol/AccessModeType.hh"
+#include "mem/protocol/TesterStatus.hh"
+#include "mem/ruby/common/Address.hh"
+#include "mem/ruby/common/Global.hh"
+#include "mem/ruby/system/NodeID.hh"
+
+class SubBlock;
+
+const int CHECK_SIZE_BITS = 2;
+const int CHECK_SIZE = (1 << CHECK_SIZE_BITS);
+
+class Check
+{
+  public:
+    Check(const Address& address, const Address& pc, int _num_cpu_sequencer,
+          RubyTester* _tester);
+
+    void initiate(); // Does Action or Check or nether
+    void performCallback(NodeID proc, SubBlock* data);
+    const Address& getAddress() { return m_address; }
+    void changeAddress(const Address& address);
+
+    void print(std::ostream& out) const;
+
+  private:
+    void initiatePrefetch();
+    void initiateAction();
+    void initiateCheck();
+
+    void pickValue();
+    void pickInitiatingNode();
+
+    void debugPrint();
+
+    TesterStatus m_status;
+    uint8 m_value;
+    int m_store_count;
+    NodeID m_initiatingNode;
+    Address m_address;
+    Address m_pc;
+    AccessModeType m_access_mode;
+    int m_num_cpu_sequencers;
+    RubyTester* m_tester_ptr;
+};
+
+inline std::ostream&
+operator<<(std::ostream& out, const Check& obj)
+{
+    obj.print(out);
+    out << std::flush;
+    return out;
+}
+
+#endif // __CPU_RUBYTEST_CHECK_HH__