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diff --git a/cpu/ozone/simple_impl.hh b/cpu/ozone/simple_impl.hh
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+/*
+ * Copyright (c) 2006 The Regents of The University of Michigan
+ * 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_OZONE_SIMPLE_IMPL_HH__
+#define __CPU_OZONE_SIMPLE_IMPL_HH__
+
+#include "arch/isa_traits.hh"
+#include "cpu/o3/bpred_unit.hh"
+#include "cpu/ozone/cpu.hh"
+#include "cpu/ozone/front_end.hh"
+#include "cpu/ozone/inorder_back_end.hh"
+#include "cpu/ozone/null_predictor.hh"
+#include "cpu/ozone/dyn_inst.hh"
+#include "cpu/ozone/simple_params.hh"
+
+//template <class Impl>
+//class OzoneCPU;
+
+template <class Impl>
+class OzoneDynInst;
+
+struct SimpleImpl {
+    typedef SimpleParams Params;
+    typedef OzoneCPU<SimpleImpl> OzoneCPU;
+    typedef OzoneCPU FullCPU;
+
+    // Would like to put these into their own area.
+//    typedef NullPredictor BranchPred;
+    typedef TwobitBPredUnit<SimpleImpl> BranchPred;
+    typedef FrontEnd<SimpleImpl> FrontEnd;
+    // Will need IQ, LSQ eventually
+    typedef InorderBackEnd<SimpleImpl> BackEnd;
+
+    typedef OzoneDynInst<SimpleImpl> DynInst;
+    typedef RefCountingPtr<DynInst> DynInstPtr;
+
+    typedef uint64_t IssueStruct;
+
+    enum {
+        MaxThreads = 1
+    };
+};
+
+#endif // __CPU_OZONE_SIMPLE_IMPL_HH__