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diff --git a/src/arch/hsail/gpu_isa.hh b/src/arch/hsail/gpu_isa.hh
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+++ b/src/arch/hsail/gpu_isa.hh
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+/*
+ * Copyright (c) 2016 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * For use for simulation and test purposes only
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ *
+ * 2. 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.
+ *
+ * 3. Neither the name of the copyright holder 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 HOLDER 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: Anthony Gutierrez
+ */
+
+#ifndef __ARCH_HSAIL_GPU_ISA_HH__
+#define __ARCH_HSAIL_GPU_ISA_HH__
+
+#include <cstdint>
+
+#include "base/misc.hh"
+#include "gpu-compute/misc.hh"
+
+class Wavefront;
+
+namespace HsailISA
+{
+    typedef uint64_t MiscReg;
+
+    class GPUISA
+    {
+      public:
+        GPUISA(Wavefront &wf) : wavefront(wf)
+        {
+        }
+
+        void
+        writeMiscReg(int opIdx, MiscReg operandVal)
+        {
+            fatal("HSAIL does not implement misc registers yet\n");
+        }
+
+        MiscReg
+        readMiscReg(int opIdx) const
+        {
+            fatal("HSAIL does not implement misc registers yet\n");
+        }
+
+        bool hasScalarUnit() const { return false; }
+
+        uint32_t
+        advancePC(uint32_t old_pc, GPUDynInstPtr gpuDynInst)
+        {
+            return old_pc + 1;
+        }
+
+      private:
+        Wavefront &wavefront;
+    };
+}
+
+#endif // __ARCH_HSAIL_GPU_ISA_HH__