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diff --git a/src/arch/sparc/intregfile.hh b/src/arch/sparc/intregfile.hh
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+/*
+ * Copyright (c) 2003-2005 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.
+ *
+ * Authors: Gabe Black
+ *          Ali Saidi
+ */
+
+#ifndef __ARCH_SPARC_INTREGFILE_HH__
+#define __ARCH_SPARC_INTREGFILE_HH__
+
+#include "arch/sparc/faults.hh"
+#include "arch/sparc/isa_traits.hh"
+#include "arch/sparc/types.hh"
+
+#include <string>
+
+namespace SparcISA
+{
+    class RegFile;
+
+    //This function translates integer register file indices into names
+    std::string getIntRegName(RegIndex);
+
+    class IntRegFile
+    {
+      private:
+        friend class RegFile;
+      protected:
+        static const int FrameOffsetBits = 3;
+        static const int FrameNumBits = 2;
+
+        static const int RegsPerFrame = 1 << FrameOffsetBits;
+        static const int FrameNumMask =
+                (FrameNumBits == sizeof(int)) ?
+                (unsigned int)(-1) :
+                (1 << FrameNumBits) - 1;
+        static const int FrameOffsetMask =
+                (FrameOffsetBits == sizeof(int)) ?
+                (unsigned int)(-1) :
+                (1 << FrameOffsetBits) - 1;
+
+        IntReg regGlobals[MaxGL][RegsPerFrame];
+        IntReg regSegments[2 * NWindows][RegsPerFrame];
+
+        enum regFrame {Globals, Outputs, Locals, Inputs, NumFrames};
+
+        IntReg * regView[NumFrames];
+
+        static const int RegGlobalOffset = 0;
+        static const int FrameOffset = MaxGL * RegsPerFrame;
+        int offset[NumFrames];
+
+      public:
+
+        int flattenIndex(int reg);
+
+        void clear();
+
+        IntRegFile();
+
+        IntReg readReg(int intReg);
+
+        Fault setReg(int intReg, const IntReg &val);
+
+        void serialize(std::ostream &os);
+
+        void unserialize(Checkpoint *cp, const std::string &section);
+
+      protected:
+        //This doesn't effect the actual CWP register.
+        //It's purpose is to adjust the view of the register file
+        //to what it would be if CWP = cwp.
+        void setCWP(int cwp);
+
+        void setGlobals(int gl);
+    };
+}
+
+#endif