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+/*
+ * Copyright (c) 2007 The Hewlett-Packard Development Company
+ * All rights reserved.
+ *
+ * Redistribution and use of this software in source and binary forms,
+ * with or without modification, are permitted provided that the
+ * following conditions are met:
+ *
+ * The software must be used only for Non-Commercial Use which means any
+ * use which is NOT directed to receiving any direct monetary
+ * compensation for, or commercial advantage from such use.  Illustrative
+ * examples of non-commercial use are academic research, personal study,
+ * teaching, education and corporate research & development.
+ * Illustrative examples of commercial use are distributing products for
+ * commercial advantage and providing services using the software for
+ * commercial advantage.
+ *
+ * If you wish to use this software or functionality therein that may be
+ * covered by patents for commercial use, please contact:
+ *     Director of Intellectual Property Licensing
+ *     Office of Strategy and Technology
+ *     Hewlett-Packard Company
+ *     1501 Page Mill Road
+ *     Palo Alto, California  94304
+ *
+ * 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 HOLDER(s), HEWLETT-PACKARD COMPANY, nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.  No right of
+ * sublicense is granted herewith.  Derivatives of the software and
+ * output created using the software may be prepared, but only for
+ * Non-Commercial Uses.  Derivatives of the software may be shared with
+ * others provided: (i) the others agree to abide by the list of
+ * conditions herein which includes the Non-Commercial Use restrictions;
+ * and (ii) such Derivatives of the software include the above copyright
+ * notice to acknowledge the contribution from this software where
+ * applicable, this list of conditions and the disclaimer below.
+ *
+ * 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.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __ARCH_X86_UTILITY_HH__
+#define __ARCH_X86_UTILITY_HH__
+
+#include "arch/x86/types.hh"
+#include "base/hashmap.hh"
+#include "base/misc.hh"
+#include "cpu/thread_context.hh"
+#include "sim/host.hh"
+
+class ThreadContext;
+
+namespace __hash_namespace {
+    template<>
+    struct hash<X86ISA::ExtMachInst> {
+        size_t operator()(const X86ISA::ExtMachInst &emi) const {
+            //Because these are all the same, return 0
+            return 0;
+        };
+    };
+}
+
+namespace X86ISA
+{
+    static inline bool
+    inUserMode(ThreadContext *tc)
+    {
+        return false;
+    }
+
+    inline bool isCallerSaveIntegerRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    inline bool isCalleeSaveIntegerRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    inline bool isCallerSaveFloatRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    inline bool isCalleeSaveFloatRegister(unsigned int reg) {
+        panic("register classification not implemented");
+        return false;
+    }
+
+    // Instruction address compression hooks
+    inline Addr realPCToFetchPC(const Addr &addr)
+    {
+        return addr;
+    }
+
+    inline Addr fetchPCToRealPC(const Addr &addr)
+    {
+        return addr;
+    }
+
+    // the size of "fetched" instructions (not necessarily the size
+    // of real instructions for PISA)
+    inline size_t fetchInstSize()
+    {
+        return sizeof(MachInst);
+    }
+
+    /**
+     * Function to insure ISA semantics about 0 registers.
+     * @param tc The thread context.
+     */
+    template <class TC>
+    void zeroRegisters(TC *tc);
+
+    inline void initCPU(ThreadContext *tc, int cpuId)
+    {
+        panic("initCPU not implemented!\n");
+    }
+
+    inline void startupCPU(ThreadContext *tc, int cpuId)
+    {
+        tc->activate(0);
+    }
+};
+
+#endif // __ARCH_X86_UTILITY_HH__