From 43345bff6c4ee2fd5a35760776898eefa690329e Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Wed, 8 Jul 2009 23:02:21 -0700
Subject: Registers: Move the PCs out of the ISAs and into the CPUs.

---
 src/arch/mips/regfile/regfile.cc | 109 ---------------------------------------
 src/arch/mips/regfile/regfile.hh |  38 +++++---------
 2 files changed, 13 insertions(+), 134 deletions(-)
 delete mode 100644 src/arch/mips/regfile/regfile.cc

(limited to 'src/arch/mips/regfile')

diff --git a/src/arch/mips/regfile/regfile.cc b/src/arch/mips/regfile/regfile.cc
deleted file mode 100644
index a19962ff3..000000000
--- a/src/arch/mips/regfile/regfile.cc
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * 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
- *          Korey Sewell
- */
-
-#include "arch/mips/regfile/regfile.hh"
-#include "sim/serialize.hh"
-
-using namespace std;
-
-namespace MipsISA
-{
-
-void
-RegFile::clear()
-{
-}
-
-void
-RegFile::reset(std::string core_name, ThreadID num_threads, unsigned num_vpes,
-               BaseCPU *_cpu)
-{
-}
-
-void
-RegFile::setShadowSet(int css){
-}
-
-
-Addr
-RegFile::readPC()
-{
-    return pc;
-}
-
-void
-RegFile::setPC(Addr val)
-{
-    pc = val;
-}
-
-Addr
-RegFile::readNextPC()
-{
-    return npc;
-}
-
-void
-RegFile::setNextPC(Addr val)
-{
-    npc = val;
-}
-
-Addr
-RegFile::readNextNPC()
-{
-    return nnpc;
-}
-
-void
-RegFile::setNextNPC(Addr val)
-{
-    nnpc = val;
-}
-
-void
-RegFile::serialize(EventManager *em, std::ostream &os)
-{
-    SERIALIZE_SCALAR(pc);
-    SERIALIZE_SCALAR(npc);
-    SERIALIZE_SCALAR(nnpc);
-}
-
-void
-RegFile::unserialize(EventManager *em, Checkpoint *cp,
-    const std::string &section)
-{
-    UNSERIALIZE_SCALAR(pc);
-    UNSERIALIZE_SCALAR(npc);
-    UNSERIALIZE_SCALAR(nnpc);
-}
-
-} // namespace MipsISA
diff --git a/src/arch/mips/regfile/regfile.hh b/src/arch/mips/regfile/regfile.hh
index 28d295022..71775edc4 100644
--- a/src/arch/mips/regfile/regfile.hh
+++ b/src/arch/mips/regfile/regfile.hh
@@ -32,11 +32,10 @@
 #ifndef __ARCH_MIPS_REGFILE_REGFILE_HH__
 #define __ARCH_MIPS_REGFILE_REGFILE_HH__
 
-#include "arch/mips/types.hh"
+#include <iostream>
+#include <string>
+
 #include "arch/mips/isa_traits.hh"
-//#include "arch/mips/mt.hh"
-//#include "cpu/base.hh"
-#include "sim/faults.hh"
 
 class BaseCPU;
 class Checkpoint;
@@ -95,33 +94,22 @@ namespace MipsISA
 
 
     class RegFile {
-      protected:
-        Addr pc;                        // program counter
-        Addr npc;                       // next-cycle program counter
-        Addr nnpc;                      // next-next-cycle program counter
-                                        // used to implement branch delay slot
-                                        // not real register
-
       public:
-        void clear();
+        void clear()
+        {}
         void reset(std::string core_name, ThreadID num_threads,
-                   unsigned num_vpes, BaseCPU *_cpu);
+                   unsigned num_vpes, BaseCPU *_cpu)
+        {}
 
-        void setShadowSet(int css);
+        void setShadowSet(int css)
+        {}
 
       public:
-        Addr readPC();
-        void setPC(Addr val);
-
-        Addr readNextPC();
-        void setNextPC(Addr val);
-
-        Addr readNextNPC();
-        void setNextNPC(Addr val);
-
-        void serialize(EventManager *em, std::ostream &os);
+        void serialize(EventManager *em, std::ostream &os)
+        {}
         void unserialize(EventManager *em, Checkpoint *cp,
-            const std::string &section);
+            const std::string &section)
+        {}
 
     };
 
-- 
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