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+/*
+ * Copyright (c) 2004-2005 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_BETA_CPU_ALPHA_IMPL_HH__
+#define __CPU_BETA_CPU_ALPHA_IMPL_HH__
+
+#include "arch/alpha/isa_traits.hh"
+
+#include "cpu/o3/alpha_params.hh"
+#include "cpu/o3/cpu_policy.hh"
+
+// Forward declarations.
+template <class Impl>
+class AlphaDynInst;
+
+template <class Impl>
+class AlphaFullCPU;
+
+/** Implementation specific struct that defines several key things to the
+ *  CPU, the stages within the CPU, the time buffers, and the DynInst.
+ *  The struct defines the ISA, the CPU policy, the specific DynInst, the
+ *  specific FullCPU, and all of the structs from the time buffers to do
+ *  communication.
+ *  This is one of the key things that must be defined for each hardware
+ *  specific CPU implementation.
+ */
+struct AlphaSimpleImpl
+{
+    /** The ISA to be used. */
+    typedef AlphaISA ISA;
+
+    /** The type of MachInst. */
+    typedef ISA::MachInst MachInst;
+
+    /** The CPU policy to be used (ie fetch, decode, etc.). */
+    typedef SimpleCPUPolicy<AlphaSimpleImpl> CPUPol;
+
+    /** The DynInst to be used. */
+    typedef AlphaDynInst<AlphaSimpleImpl> DynInst;
+
+    /** The refcounted DynInst pointer to be used.  In most cases this is
+     *  what should be used, and not DynInst *.
+     */
+    typedef RefCountingPtr<DynInst> DynInstPtr;
+
+    /** The FullCPU to be used. */
+    typedef AlphaFullCPU<AlphaSimpleImpl> FullCPU;
+
+    /** The Params to be passed to each stage. */
+    typedef AlphaSimpleParams Params;
+
+    enum {
+        MaxWidth = 8
+    };
+};
+
+#endif // __CPU_BETA_CPU_ALPHA_IMPL_HH__