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diff --git a/src/arch/power/insts/mem.hh b/src/arch/power/insts/mem.hh
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+/*
+ * Copyright (c) 2009 The University of Edinburgh
+ * 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.
+ *
+ * Authors: Timothy M. Jones
+ */
+
+#ifndef __ARCH_POWER_MEM_HH__
+#define __ARCH_POWER_MEM_HH__
+
+#include "arch/power/insts/static_inst.hh"
+
+namespace PowerISA
+{
+
+/**
+ * Base class for memory operations.
+ */
+class MemOp : public PowerStaticInst
+{
+  protected:
+
+    /// Memory request flags.  See mem_req_base.hh.
+    unsigned memAccessFlags;
+    /// Pointer to EAComp object.
+    const StaticInstPtr eaCompPtr;
+    /// Pointer to MemAcc object.
+    const StaticInstPtr memAccPtr;
+
+    /// Constructor
+    MemOp(const char *mnem, MachInst _machInst, OpClass __opClass,
+          StaticInstPtr _eaCompPtr = nullStaticInstPtr,
+          StaticInstPtr _memAccPtr = nullStaticInstPtr)
+      : PowerStaticInst(mnem, _machInst, __opClass),
+        memAccessFlags(0),
+        eaCompPtr(_eaCompPtr),
+        memAccPtr(_memAccPtr)
+    {
+    }
+
+    std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+};
+
+
+/**
+ * Class for memory operations with displacement.
+ */
+class MemDispOp : public MemOp
+{
+  protected:
+
+    int16_t disp;
+
+    /// Constructor
+    MemDispOp(const char *mnem, MachInst _machInst, OpClass __opClass,
+              StaticInstPtr _eaCompPtr = nullStaticInstPtr,
+              StaticInstPtr _memAccPtr = nullStaticInstPtr)
+      : MemOp(mnem, _machInst, __opClass, _eaCompPtr, _memAccPtr),
+        disp(machInst.d)
+    {
+    }
+
+    std::string generateDisassembly(Addr pc, const SymbolTable *symtab) const;
+};
+
+} // PowerISA namespace
+
+#endif //__ARCH_POWER_INSTS_MEM_HH__