Merge m5.eecs.umich.edu:/bk/newmem

into  ewok.(none):/home/gblack/m5/newmem

src/arch/sparc/regfile.hh:
    Hand Merge

--HG--
extra : convert_revision : c47202689202069892524a7d71962082469996ee

25 files changed, 685 insertions, 219 deletions

diff --git a/src/arch/sparc/SConscript b/src/arch/sparc/SConscript
index 7362c9275..e7a8278db 100644
--- a/src/arch/sparc/SConscript
+++ b/src/arch/sparc/SConscript
@@ -25,6 +25,9 @@
 # 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
+#          Steve Reinhardt
 
 import os
 import sys
@@ -47,12 +50,8 @@ base_sources = Split('''
 
 # Full-system sources
 full_system_sources = Split('''
-	tlb.cc
-	arguments.cc
-	ev5.cc
-	osfpal.cc
-	stacktrace.cc
 	vtophys.cc
+	ua2005.cc
 	''')
 
 # Syscall emulation (non-full-system) sources
diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 67a89ab0e..57b4d4d86 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -24,10 +24,13 @@
  * 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
+ *          Kevin Lim
  */
 
 #include "arch/sparc/faults.hh"
-#include "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
 #include "cpu/base.hh"
 #include "base/trace.hh"
 
@@ -217,36 +220,36 @@ FaultStat     TrapInstruction::_count;
 
 #if FULL_SYSTEM
 
-void SparcFault::invoke(ExecContext * xc)
+void SparcFault::invoke(ThreadContext * tc)
 {
-    FaultBase::invoke(xc);
+    FaultBase::invoke(tc);
     countStat()++;
 
     //Use the SPARC trap state machine
     /*// exception restart address
-    if (setRestartAddress() || !xc->inPalMode())
-        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, xc->regs.pc);
+    if (setRestartAddress() || !tc->inPalMode())
+        tc->setMiscReg(AlphaISA::IPR_EXC_ADDR, tc->regs.pc);
 
     if (skipFaultingInstruction()) {
         // traps...  skip faulting instruction.
-        xc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
-                   xc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
+        tc->setMiscReg(AlphaISA::IPR_EXC_ADDR,
+                   tc->readMiscReg(AlphaISA::IPR_EXC_ADDR) + 4);
     }
 
-    if (!xc->inPalMode())
-        AlphaISA::swap_palshadow(&(xc->regs), true);
+    if (!tc->inPalMode())
+        AlphaISA::swap_palshadow(&(tc->regs), true);
 
-    xc->regs.pc = xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
-    xc->regs.npc = xc->regs.pc + sizeof(MachInst);*/
+    tc->regs.pc = tc->readMiscReg(AlphaISA::IPR_PAL_BASE) + vect();
+    tc->regs.npc = tc->regs.pc + sizeof(MachInst);*/
 }
 
 #endif
 
 #if !FULL_SYSTEM
 
-void TrapInstruction::invoke(ExecContext * xc)
+void TrapInstruction::invoke(ThreadContext * tc)
 {
-    xc->syscall(syscall_num);
+    tc->syscall(syscall_num);
 }
 
 #endif
diff --git a/src/arch/sparc/faults.hh b/src/arch/sparc/faults.hh
index e8fb8dfc5..9f595a28b 100644
--- a/src/arch/sparc/faults.hh
+++ b/src/arch/sparc/faults.hh
@@ -24,6 +24,9 @@
  * 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
+ *          Kevin Lim
  */
 
 #ifndef __ALPHA_FAULTS_HH__
@@ -43,7 +46,7 @@ class SparcFault : public FaultBase
 {
   public:
 #if FULL_SYSTEM
-    void invoke(ExecContext * xc);
+    void invoke(ThreadContext * tc);
 #endif
     virtual TrapType trapType() = 0;
     virtual FaultPriority priority() = 0;
@@ -582,7 +585,7 @@ class TrapInstruction : public EnumeratedFault
     FaultPriority priority() {return _priority;}
     FaultStat & countStat() {return _count;}
 #if !FULL_SYSTEM
-    void invoke(ExecContext * xc);
+    void invoke(ThreadContext * tc);
 #endif
 };
 
diff --git a/src/arch/sparc/isa/includes.isa b/src/arch/sparc/isa/includes.isa
index 762de243a..40afb3722 100644
--- a/src/arch/sparc/isa/includes.isa
+++ b/src/arch/sparc/isa/includes.isa
@@ -48,7 +48,7 @@ output header {{
 output decoder {{
 #include "base/cprintf.hh"
 #include "base/loader/symtab.hh"
-#include "cpu/exec_context.hh"  // for Jump::branchTarget()
+#include "cpu/thread_context.hh"  // for Jump::branchTarget()
 
 #include <math.h>
 #if defined(linux)
diff --git a/src/arch/sparc/isa/main.isa b/src/arch/sparc/isa/main.isa
index 79be0e2a3..14acf54fa 100644
--- a/src/arch/sparc/isa/main.isa
+++ b/src/arch/sparc/isa/main.isa
@@ -25,6 +25,8 @@
 // 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: Korey Sewell
 
 ////////////////////////////////////////////////////////////////////
 //
diff --git a/src/arch/sparc/isa_traits.hh b/src/arch/sparc/isa_traits.hh
index 2b4d89441..346f7b730 100644
--- a/src/arch/sparc/isa_traits.hh
+++ b/src/arch/sparc/isa_traits.hh
@@ -24,6 +24,9 @@
  * 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: Korey Sewell
+ *          Gabe Black
  */
 
 #ifndef __ARCH_SPARC_ISA_TRAITS_HH__
@@ -33,7 +36,7 @@
 #include "config/full_system.hh"
 #include "sim/host.hh"
 
-class ExecContext;
+class ThreadContext;
 class FastCPU;
 //class FullCPU;
 class Checkpoint;
@@ -80,6 +83,9 @@ class SyscallReturn
 
 #endif
 
+#if FULL_SYSTEM
+#include "arch/sparc/isa_fullsys_traits.hh"
+#endif
 
 namespace SparcISA
 {
diff --git a/src/arch/sparc/linux/linux.cc b/src/arch/sparc/linux/linux.cc
index c7ed29358..ae6ffbc2a 100644
--- a/src/arch/sparc/linux/linux.cc
+++ b/src/arch/sparc/linux/linux.cc
@@ -24,6 +24,8 @@
  * 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
  */
 
 #include "arch/sparc/linux/linux.hh"
diff --git a/src/arch/sparc/linux/linux.hh b/src/arch/sparc/linux/linux.hh
index 9cde5bb9c..926c2cb77 100644
--- a/src/arch/sparc/linux/linux.hh
+++ b/src/arch/sparc/linux/linux.hh
@@ -24,6 +24,8 @@
  * 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_SPARC_LINUX_LINUX_HH__
diff --git a/src/arch/sparc/linux/process.cc b/src/arch/sparc/linux/process.cc
index 71be6a83a..e27255e67 100644
--- a/src/arch/sparc/linux/process.cc
+++ b/src/arch/sparc/linux/process.cc
@@ -24,6 +24,10 @@
  * 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: Steve Reinhardt
+ *          Gabe Black
+ *          Ali Saidi
  */
 
 #include "arch/sparc/isa_traits.hh"
@@ -31,7 +35,7 @@
 #include "arch/sparc/regfile.hh"
 
 #include "base/trace.hh"
-#include "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
 #include "kern/linux/linux.hh"
 
 #include "sim/process.hh"
@@ -44,9 +48,9 @@ using namespace SparcISA;
 /// Target uname() handler.
 static SyscallReturn
 unameFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
+          ThreadContext *tc)
 {
-    TypedBufferArg<Linux::utsname> name(xc->getSyscallArg(0));
+    TypedBufferArg<Linux::utsname> name(tc->getSyscallArg(0));
 
     strcpy(name->sysname, "Linux");
     strcpy(name->nodename, "m5.eecs.umich.edu");
@@ -54,40 +58,40 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
     strcpy(name->version, "#1 Mon Aug 18 11:32:15 EDT 2003");
     strcpy(name->machine, "sparc");
 
-    name.copyOut(xc->getMemPort());
+    name.copyOut(tc->getMemPort());
 
     return 0;
 }
 
 
 SyscallReturn SparcISA::getresuidFunc(SyscallDesc *desc, int num,
-                                         Process *p, ExecContext *xc)
+                                         Process *p, ThreadContext *tc)
 {
     const IntReg id = htog(100);
-    Addr ruid = xc->getSyscallArg(0);
-    Addr euid = xc->getSyscallArg(1);
-    Addr suid = xc->getSyscallArg(2);
+    Addr ruid = tc->getSyscallArg(0);
+    Addr euid = tc->getSyscallArg(1);
+    Addr suid = tc->getSyscallArg(2);
     //Handle the EFAULT case
     //Set the ruid
     if(ruid)
     {
         BufferArg ruidBuff(ruid, sizeof(IntReg));
         memcpy(ruidBuff.bufferPtr(), &id, sizeof(IntReg));
-        ruidBuff.copyOut(xc->getMemPort());
+        ruidBuff.copyOut(tc->getMemPort());
     }
     //Set the euid
     if(euid)
     {
         BufferArg euidBuff(euid, sizeof(IntReg));
         memcpy(euidBuff.bufferPtr(), &id, sizeof(IntReg));
-        euidBuff.copyOut(xc->getMemPort());
+        euidBuff.copyOut(tc->getMemPort());
     }
     //Set the suid
     if(suid)
     {
         BufferArg suidBuff(suid, sizeof(IntReg));
         memcpy(suidBuff.bufferPtr(), &id, sizeof(IntReg));
-        suidBuff.copyOut(xc->getMemPort());
+        suidBuff.copyOut(tc->getMemPort());
     }
     return 0;
 }
diff --git a/src/arch/sparc/linux/process.hh b/src/arch/sparc/linux/process.hh
index 23ce66d02..f4819ba84 100644
--- a/src/arch/sparc/linux/process.hh
+++ b/src/arch/sparc/linux/process.hh
@@ -24,6 +24,8 @@
  * 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: Steve Reinhardt
  */
 
 #ifndef __SPARC_LINUX_PROCESS_HH__
@@ -59,7 +61,7 @@ class SparcLinuxProcess : public SparcLiveProcess
 };
 
 SyscallReturn getresuidFunc(SyscallDesc *desc, int num,
-                                 Process *p, ExecContext *xc);
+                                 Process *p, ThreadContext *tc);
 
 } // namespace SparcISA
 #endif // __ALPHA_LINUX_PROCESS_HH__
diff --git a/src/arch/sparc/process.cc b/src/arch/sparc/process.cc
index fe6692cc3..75f01e038 100644
--- a/src/arch/sparc/process.cc
+++ b/src/arch/sparc/process.cc
@@ -24,60 +24,23 @@
  * 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
  */
 
 #include "arch/sparc/isa_traits.hh"
 #include "arch/sparc/process.hh"
-#include "arch/sparc/linux/process.hh"
-#include "arch/sparc/solaris/process.hh"
 #include "base/loader/object_file.hh"
 #include "base/misc.hh"
-#include "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
 #include "mem/page_table.hh"
 #include "mem/translating_port.hh"
-#include "sim/builder.hh"
 #include "sim/system.hh"
 
 using namespace std;
 using namespace SparcISA;
 
-SparcLiveProcess *
-SparcLiveProcess::create(const std::string &nm, System *system, int stdin_fd,
-        int stdout_fd, int stderr_fd, std::string executable,
-        std::vector<std::string> &argv, std::vector<std::string> &envp)
-{
-    SparcLiveProcess *process = NULL;
-
-    ObjectFile *objFile = createObjectFile(executable);
-    if (objFile == NULL) {
-        fatal("Can't load object file %s", executable);
-    }
-
-
-    if (objFile->getArch() != ObjectFile::SPARC)
-        fatal("Object file with arch %x does not match architecture %x.",
-                objFile->getArch(), ObjectFile::SPARC);
-    switch (objFile->getOpSys()) {
-      case ObjectFile::Linux:
-        process = new SparcLinuxProcess(nm, objFile, system,
-                                        stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp);
-        break;
-
-
-      case ObjectFile::Solaris:
-        process = new SparcSolarisProcess(nm, objFile, system,
-                                        stdin_fd, stdout_fd, stderr_fd,
-                                        argv, envp);
-        break;
-      default:
-        fatal("Unknown/unsupported operating system.");
-    }
-
-    if (process == NULL)
-        fatal("Unknown error creating process object.");
-    return process;
-}
 
 SparcLiveProcess::SparcLiveProcess(const std::string &nm, ObjectFile *objFile,
         System *_system, int stdin_fd, int stdout_fd, int stderr_fd,
@@ -110,27 +73,27 @@ SparcLiveProcess::startup()
     //From the SPARC ABI
 
     //The process runs in user mode
-    execContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE, 0x02);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_PSTATE, 0x02);
 
     //Setup default FP state
-    execContexts[0]->setMiscReg(MISCREG_FSR, 0);
+    threadContexts[0]->setMiscReg(MISCREG_FSR, 0);
 
-    execContexts[0]->setMiscReg(MISCREG_TICK, 0);
+    threadContexts[0]->setMiscReg(MISCREG_TICK, 0);
     //
     /*
      * Register window management registers
      */
 
     //No windows contain info from other programs
-    execContexts[0]->setMiscRegWithEffect(MISCREG_OTHERWIN, 0);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_OTHERWIN, 0);
     //There are no windows to pop
-    execContexts[0]->setMiscRegWithEffect(MISCREG_CANRESTORE, 0);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_CANRESTORE, 0);
     //All windows are available to save into
-    execContexts[0]->setMiscRegWithEffect(MISCREG_CANSAVE, NWindows - 2);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_CANSAVE, NWindows - 2);
     //All windows are "clean"
-    execContexts[0]->setMiscRegWithEffect(MISCREG_CLEANWIN, NWindows);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_CLEANWIN, NWindows);
     //Start with register window 0
-    execContexts[0]->setMiscRegWithEffect(MISCREG_CWP, 0);
+    threadContexts[0]->setMiscRegWithEffect(MISCREG_CWP, 0);
 }
 
 m5_auxv_t buildAuxVect(int64_t type, int64_t val)
@@ -308,72 +271,14 @@ SparcLiveProcess::argsInit(int intSize, int pageSize)
 
     initVirtMem->writeBlob(argc_base, (uint8_t*)&guestArgc, intSize);
 
-    execContexts[0]->setIntReg(ArgumentReg0, argc);
-    execContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
-    execContexts[0]->setIntReg(StackPointerReg, stack_min - StackBias);
+    threadContexts[0]->setIntReg(ArgumentReg0, argc);
+    threadContexts[0]->setIntReg(ArgumentReg1, argv_array_base);
+    threadContexts[0]->setIntReg(StackPointerReg, stack_min - StackBias);
 
     Addr prog_entry = objFile->entryPoint();
-    execContexts[0]->setPC(prog_entry);
-    execContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
-    execContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
+    threadContexts[0]->setPC(prog_entry);
+    threadContexts[0]->setNextPC(prog_entry + sizeof(MachInst));
+    threadContexts[0]->setNextNPC(prog_entry + (2 * sizeof(MachInst)));
 
 //    num_processes++;
 }
-
-
-BEGIN_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
-
-    VectorParam<string> cmd;
-    Param<string> executable;
-    Param<string> input;
-    Param<string> output;
-    VectorParam<string> env;
-    SimObjectParam<System *> system;
-
-END_DECLARE_SIM_OBJECT_PARAMS(SparcLiveProcess)
-
-
-BEGIN_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
-
-    INIT_PARAM(cmd, "command line (executable plus arguments)"),
-    INIT_PARAM(executable, "executable (overrides cmd[0] if set)"),
-    INIT_PARAM(input, "filename for stdin (dflt: use sim stdin)"),
-    INIT_PARAM(output, "filename for stdout/stderr (dflt: use sim stdout)"),
-    INIT_PARAM(env, "environment settings"),
-    INIT_PARAM(system, "system")
-
-END_INIT_SIM_OBJECT_PARAMS(SparcLiveProcess)
-
-
-CREATE_SIM_OBJECT(SparcLiveProcess)
-{
-    string in = input;
-    string out = output;
-
-    // initialize file descriptors to default: same as simulator
-    int stdin_fd, stdout_fd, stderr_fd;
-
-    if (in == "stdin" || in == "cin")
-        stdin_fd = STDIN_FILENO;
-    else
-        stdin_fd = Process::openInputFile(input);
-
-    if (out == "stdout" || out == "cout")
-        stdout_fd = STDOUT_FILENO;
-    else if (out == "stderr" || out == "cerr")
-        stdout_fd = STDERR_FILENO;
-    else
-        stdout_fd = Process::openOutputFile(out);
-
-    stderr_fd = (stdout_fd != STDOUT_FILENO) ? stdout_fd : STDERR_FILENO;
-
-    return SparcLiveProcess::create(getInstanceName(), system,
-                               stdin_fd, stdout_fd, stderr_fd,
-                               (string)executable == "" ? cmd[0] : executable,
-                               cmd, env);
-}
-
-
-REGISTER_SIM_OBJECT("SparcLiveProcess", SparcLiveProcess)
-
-
diff --git a/src/arch/sparc/process.hh b/src/arch/sparc/process.hh
index c177f20a5..7ba8d7109 100644
--- a/src/arch/sparc/process.hh
+++ b/src/arch/sparc/process.hh
@@ -24,6 +24,9 @@
  * 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 __SPARC_PROCESS_HH__
@@ -62,15 +65,6 @@ class SparcLiveProcess : public LiveProcess
     void startup();
 
   public:
-    // this function is used to create the LiveProcess object, since
-    // we can't tell which subclass of LiveProcess to use until we
-    // open and look at the object file.
-    static SparcLiveProcess *create(const std::string &nm,
-                               System *_system,
-                               int stdin_fd, int stdout_fd, int stderr_fd,
-                               std::string executable,
-                               std::vector<std::string> &argv,
-                               std::vector<std::string> &envp);
 
     void argsInit(int intSize, int pageSize);
 
diff --git a/src/arch/sparc/regfile.hh b/src/arch/sparc/regfile.hh
index 4e5494730..e5192d684 100644
--- a/src/arch/sparc/regfile.hh
+++ b/src/arch/sparc/regfile.hh
@@ -24,15 +24,19 @@
  * 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_REGFILE_HH__
 #define __ARCH_SPARC_REGFILE_HH__
 
+#include "arch/sparc/exceptions.hh"
 #include "arch/sparc/faults.hh"
 #include "base/trace.hh"
 #include "sim/byteswap.hh"
-#include "sim/eventq.hh"
+#include "cpu/cpuevent.hh"
 #include "sim/host.hh"
 
 class Checkpoint;
@@ -56,6 +60,7 @@ namespace SparcISA
     const int HprStart = 64;
     const int MiscStart = 96;
 
+    const uint64_t Bit64 = (1ULL << 63);
     class IntRegFile
     {
       protected:
@@ -237,17 +242,22 @@ namespace SparcISA
             //In each of these cases, we have to copy the value into a temporary
             //variable. This is because we may otherwise try to access an
             //unaligned portion of memory.
+
+            uint32_t result32;
+            uint64_t result64;
             switch(width)
             {
               case SingleWidth:
-                uint32_t result32 = gtoh((uint32_t)val);
+                result32 = gtoh((uint32_t)val);
                 memcpy(regSpace + 4 * floatReg, &result32, width);
+                break;
               case DoubleWidth:
-                uint64_t result64 = gtoh((uint64_t)val);
+                result64 = gtoh((uint64_t)val);
                 memcpy(regSpace + 4 * floatReg, &result64, width);
+                break;
               case QuadWidth:
-                uint64_t result128 = gtoh((uint64_t)val);
-                memcpy(regSpace + 4 * floatReg, &result128, width);
+                panic("Quad width FP not implemented.");
+                break;
               default:
                 panic("Attempted to read a %d bit floating point register!", width);
             }
@@ -259,17 +269,21 @@ namespace SparcISA
             //In each of these cases, we have to copy the value into a temporary
             //variable. This is because we may otherwise try to access an
             //unaligned portion of memory.
+            uint32_t result32;
+            uint64_t result64;
             switch(width)
             {
               case SingleWidth:
-                uint32_t result32 = gtoh((uint32_t)val);
+                result32 = gtoh((uint32_t)val);
                 memcpy(regSpace + 4 * floatReg, &result32, width);
+                break;
               case DoubleWidth:
-                uint64_t result64 = gtoh((uint64_t)val);
+                result64 = gtoh((uint64_t)val);
                 memcpy(regSpace + 4 * floatReg, &result64, width);
+                break;
               case QuadWidth:
-                uint64_t result128 = gtoh((uint64_t)val);
-                memcpy(regSpace + 4 * floatReg, &result128, width);
+                panic("Quad width FP not implemented.");
+                break;
               default:
                 panic("Attempted to read a %d bit floating point register!", width);
             }
@@ -402,7 +416,7 @@ namespace SparcISA
         union {
             uint64_t stick;		// Hardware clock-tick counter
             struct {
-                int64_t counter:63;	// Clock-tick count
+                int64_t :63;	// Not used, storage in SparcSystem
                 uint64_t npt:1;		// Non-priveleged trap
             } stickFields;
         };
@@ -552,22 +566,31 @@ namespace SparcISA
 
         // These need to check the int_dis field and if 0 then
         // set appropriate bit in softint and checkinterrutps on the cpu
-        void processTickCompare() { panic("tick compare not implemented\n"); }
-        void processSTickCompare(){ panic("tick compare not implemented\n"); }
-        void processHSTickCompare(){ panic("tick compare not implemented\n"); }
+#if FULL_SYSTEM
+        /** Process a tick compare event and generate an interrupt on the cpu if
+         * appropriate. */
+        void processTickCompare(ThreadContext *tc);
+        void processSTickCompare(ThreadContext *tc);
+        void processHSTickCompare(ThreadContext *tc);
 
-        typedef EventWrapper<MiscRegFile,
+        typedef CpuEventWrapper<MiscRegFile,
                 &MiscRegFile::processTickCompare> TickCompareEvent;
-        TickCompareEvent tickCompare;
+        TickCompareEvent *tickCompare;
 
-        typedef EventWrapper<MiscRegFile,
+        typedef CpuEventWrapper<MiscRegFile,
                 &MiscRegFile::processSTickCompare> STickCompareEvent;
-        STickCompareEvent sTickCompare;
+        STickCompareEvent *sTickCompare;
 
-        typedef EventWrapper<MiscRegFile,
+        typedef CpuEventWrapper<MiscRegFile,
                 &MiscRegFile::processHSTickCompare> HSTickCompareEvent;
-        HSTickCompareEvent hSTickCompare;
+        HSTickCompareEvent *hSTickCompare;
 
+        /** Fullsystem only register version of ReadRegWithEffect() */
+        MiscReg readFSRegWithEffect(int miscReg, Fault &fault, ThreadContext *tc);
+        /** Fullsystem only register version of SetRegWithEffect() */
+        Fault setFSRegWithEffect(int miscReg, const MiscReg &val,
+                ThreadContext * tc);
+#endif
       public:
 
         void reset()
@@ -580,25 +603,29 @@ namespace SparcISA
             //Bits that aren't set aren't defined on startup.
             tl = MaxTL;
             gl = MaxGL;
-            tt[tl] = PowerOnReset.trapType();
-            pstateFields.mm = 0; //Total Store Order
-            pstateFields.red = 1; //Enter RED_State
-            pstateFields.am = 0; //Address Masking is turned off
-            pstateFields.priv = 1; //Processor enters privileged mode
-            pstateFields.ie = 0; //Interrupts are disabled
-            pstateFields.ag = 1; //Globals are replaced with alternate globals
-            pstateFields.tle = 0; //Big Endian mode for traps
-            pstateFields.cle = 0; //Big Endian mode for non-traps
+
             tickFields.counter = 0; //The TICK register is unreadable bya
             tickFields.npt = 1; //The TICK register is unreadable by by !priv
-            tick_cmpr.int_dis = 1; // disable timer compare interrupts
-            stickFields.counter = 0; //The TICK register is unreadable by
+
+            softint = 0; // Clear all the soft interrupt bits
+            tick_cmprFields.int_dis = 1; // disable timer compare interrupts
+            tick_cmprFields.tick_cmpr = 0; // Reset to 0 for pretty printing
             stickFields.npt = 1; //The TICK register is unreadable by by !priv
-            hpstateFields.id = 1;
-            hpstateFields.ibe = 0;
+            stick_cmprFields.int_dis = 1; // disable timer compare interrupts
+            stick_cmprFields.tick_cmpr = 0; // Reset to 0 for pretty printing
+
+
+            tt[tl] = power_on_reset;
+            pstate = 0; // fields 0 but pef
+            pstateFields.pef = 1;
+
+            hpstate = 0;
             hpstateFields.red = 1;
             hpstateFields.hpriv = 1;
             hpstateFields.tlz = 0; // this is a guess
+            hintp = 0; // no interrupts pending
+            hstick_cmprFields.int_dis = 1; // disable timer compare interrupts
+            hstick_cmprFields.tick_cmpr = 0; // Reset to 0 for pretty printing
 #else
 /*	    //This sets up the initial state of the processor for usermode processes
             pstateFields.priv = 0; //Process runs in user mode
@@ -619,25 +646,42 @@ namespace SparcISA
         }
 
         MiscRegFile()
-            : tickCompare(this), sTickCompare(this), hSTickCompare(this)
         {
             reset();
         }
 
+        /** read a value out of an either an SE or FS IPR. No checking is done
+         * about SE vs. FS as this is mostly used to copy the regfile. Thus more
+         * register are copied that are necessary for FS. However this prevents
+         * a bunch of ifdefs and is rarely called so is not performance
+         * criticial. */
         MiscReg readReg(int miscReg);
 
-        MiscReg readRegWithEffect(int miscReg, Fault &fault, ExecContext *xc);
-
+        /** Read a value from an IPR. Only the SE iprs are here and the rest
+         * are are readFSRegWithEffect (which is called by readRegWithEffect()).
+         * Checking is done for permission based on state bits in the miscreg
+         * file. */
+        MiscReg readRegWithEffect(int miscReg, Fault &fault, ThreadContext *tc);
+
+        /** write a value into an either an SE or FS IPR. No checking is done
+         * about SE vs. FS as this is mostly used to copy the regfile. Thus more
+         * register are copied that are necessary for FS. However this prevents
+         * a bunch of ifdefs and is rarely called so is not performance
+         * criticial.*/
         Fault setReg(int miscReg, const MiscReg &val);
 
+        /** Write a value into an IPR. Only the SE iprs are here and the rest
+         * are are setFSRegWithEffect (which is called by setRegWithEffect()).
+         * Checking is done for permission based on state bits in the miscreg
+         * file. */
         Fault setRegWithEffect(int miscReg,
-                const MiscReg &val, ExecContext * xc);
+                const MiscReg &val, ThreadContext * tc);
 
         void serialize(std::ostream & os);
 
         void unserialize(Checkpoint * cp, const std::string & section);
 
-        void copyMiscRegs(ExecContext * xc);
+        void copyMiscRegs(ThreadContext * tc);
 
       protected:
 
@@ -715,9 +759,9 @@ namespace SparcISA
         }
 
         MiscReg readMiscRegWithEffect(int miscReg,
-                Fault &fault, ExecContext *xc)
+                Fault &fault, ThreadContext *tc)
         {
-            return miscRegFile.readRegWithEffect(miscReg, fault, xc);
+            return miscRegFile.readRegWithEffect(miscReg, fault, tc);
         }
 
         Fault setMiscReg(int miscReg, const MiscReg &val)
@@ -726,9 +770,9 @@ namespace SparcISA
         }
 
         Fault setMiscRegWithEffect(int miscReg, const MiscReg &val,
-                ExecContext * xc)
+                ThreadContext * tc)
         {
-            return miscRegFile.setRegWithEffect(miscReg, val, xc);
+            return miscRegFile.setRegWithEffect(miscReg, val, tc);
         }
 
         FloatReg readFloatReg(int floatReg, int width)
@@ -815,9 +859,9 @@ namespace SparcISA
         }
     };
 
-    void copyRegs(ExecContext *src, ExecContext *dest);
+    void copyRegs(ThreadContext *src, ThreadContext *dest);
 
-    void copyMiscRegs(ExecContext *src, ExecContext *dest);
+    void copyMiscRegs(ThreadContext *src, ThreadContext *dest);
 
     int InterruptLevel(uint64_t softint);
 
diff --git a/src/arch/sparc/solaris/process.cc b/src/arch/sparc/solaris/process.cc
index 95cdb0bd5..af0550910 100644
--- a/src/arch/sparc/solaris/process.cc
+++ b/src/arch/sparc/solaris/process.cc
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #include "arch/sparc/isa_traits.hh"
@@ -31,7 +33,7 @@
 #include "arch/sparc/regfile.hh"
 
 #include "base/trace.hh"
-#include "cpu/exec_context.hh"
+#include "cpu/thread_context.hh"
 #include "kern/solaris/solaris.hh"
 
 #include "sim/process.hh"
@@ -44,9 +46,9 @@ using namespace SparcISA;
 /// Target uname() handler.
 static SyscallReturn
 unameFunc(SyscallDesc *desc, int callnum, Process *process,
-          ExecContext *xc)
+          ThreadContext *tc)
 {
-    TypedBufferArg<Solaris::utsname> name(xc->getSyscallArg(0));
+    TypedBufferArg<Solaris::utsname> name(tc->getSyscallArg(0));
 
     strcpy(name->sysname, "SunOS");
     strcpy(name->nodename, "m5.eecs.umich.edu");
@@ -54,7 +56,7 @@ unameFunc(SyscallDesc *desc, int callnum, Process *process,
     strcpy(name->version, "Generic_118558-21");
     strcpy(name->machine, "sun4u");
 
-    name.copyOut(xc->getMemPort());
+    name.copyOut(tc->getMemPort());
 
     return 0;
 }
diff --git a/src/arch/sparc/solaris/process.hh b/src/arch/sparc/solaris/process.hh
index 24dffdaf0..3c0d7eba7 100644
--- a/src/arch/sparc/solaris/process.hh
+++ b/src/arch/sparc/solaris/process.hh
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #ifndef __SPARC_SOLARIS_PROCESS_HH__
diff --git a/src/arch/sparc/solaris/solaris.cc b/src/arch/sparc/solaris/solaris.cc
index a56f10740..c588925b0 100644
--- a/src/arch/sparc/solaris/solaris.cc
+++ b/src/arch/sparc/solaris/solaris.cc
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #include "arch/sparc/solaris/solaris.hh"
diff --git a/src/arch/sparc/solaris/solaris.hh b/src/arch/sparc/solaris/solaris.hh
index 6833a2d6a..0564faba4 100644
--- a/src/arch/sparc/solaris/solaris.hh
+++ b/src/arch/sparc/solaris/solaris.hh
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #ifndef __ARCH_SPARC_SOLARIS_SOLARIS_HH__
diff --git a/src/arch/sparc/stacktrace.hh b/src/arch/sparc/stacktrace.hh
index 1d8d97a79..d12aee211 100644
--- a/src/arch/sparc/stacktrace.hh
+++ b/src/arch/sparc/stacktrace.hh
@@ -24,6 +24,8 @@
  * 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: Nathan Binkert
  */
 
 #ifndef __ARCH_ALPHA_STACKTRACE_HH__
@@ -32,13 +34,13 @@
 #include "base/trace.hh"
 #include "cpu/static_inst.hh"
 
-class ExecContext;
+class ThreadContext;
 class StackTrace;
 
 class ProcessInfo
 {
   private:
-    ExecContext *xc;
+    ThreadContext *tc;
 
     int thread_info_size;
     int task_struct_size;
@@ -47,7 +49,7 @@ class ProcessInfo
     int name_off;
 
   public:
-    ProcessInfo(ExecContext *_xc);
+    ProcessInfo(ThreadContext *_tc);
 
     Addr task(Addr ksp) const;
     int pid(Addr ksp) const;
@@ -59,7 +61,7 @@ class StackTrace
   protected:
     typedef TheISA::MachInst MachInst;
   private:
-    ExecContext *xc;
+    ThreadContext *tc;
     std::vector<Addr> stack;
 
   private:
@@ -68,21 +70,21 @@ class StackTrace
     bool decodeSave(MachInst inst, int &reg, int &disp);
     bool decodeStack(MachInst inst, int &disp);
 
-    void trace(ExecContext *xc, bool is_call);
+    void trace(ThreadContext *tc, bool is_call);
 
   public:
     StackTrace();
-    StackTrace(ExecContext *xc, StaticInstPtr inst);
+    StackTrace(ThreadContext *tc, StaticInstPtr inst);
     ~StackTrace();
 
     void clear()
     {
-        xc = 0;
+        tc = 0;
         stack.clear();
     }
 
-    bool valid() const { return xc != NULL; }
-    bool trace(ExecContext *xc, StaticInstPtr inst);
+    bool valid() const { return tc != NULL; }
+    bool trace(ThreadContext *tc, StaticInstPtr inst);
 
   public:
     const std::vector<Addr> &getstack() const { return stack; }
@@ -104,7 +106,7 @@ class StackTrace
 };
 
 inline bool
-StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
+StackTrace::trace(ThreadContext *tc, StaticInstPtr inst)
 {
     if (!inst->isCall() && !inst->isReturn())
         return false;
@@ -112,7 +114,7 @@ StackTrace::trace(ExecContext *xc, StaticInstPtr inst)
     if (valid())
         clear();
 
-    trace(xc, !inst->isReturn());
+    trace(tc, !inst->isReturn());
     return true;
 }
 
diff --git a/src/arch/sparc/system.cc b/src/arch/sparc/system.cc
index 1e2882607..e197e7918 100644
--- a/src/arch/sparc/system.cc
+++ b/src/arch/sparc/system.cc
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #include "arch/sparc/system.hh"
@@ -40,7 +42,8 @@
 using namespace BigEndianGuest;
 
 SparcSystem::SparcSystem(Params *p)
-    : System(p)
+    : System(p), sysTick(0)
+
 {
     resetSymtab = new SymbolTable;
     hypervisorSymtab = new SymbolTable;
diff --git a/src/arch/sparc/system.hh b/src/arch/sparc/system.hh
index 27aa8768a..614707f6c 100644
--- a/src/arch/sparc/system.hh
+++ b/src/arch/sparc/system.hh
@@ -24,6 +24,8 @@
  * 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: Ali Saidi
  */
 
 #ifndef __ARCH_SPARC_SYSTEM_HH__
@@ -53,7 +55,7 @@ class SparcSystem : public System
 
     SparcSystem(Params *p);
 
-    ~SparcaSystem();
+    ~SparcSystem();
 
     virtual bool breakpoint();
 
@@ -82,6 +84,9 @@ class SparcSystem : public System
     /** Object pointer for the openboot code */
     ObjectFile *openboot;
 
+    /** System Tick for syncronized tick across all cpus. */
+    Tick sysTick;
+
   protected:
     const Params *params() const { return (const Params *)_params; }
 
diff --git a/src/arch/sparc/tlb.hh b/src/arch/sparc/tlb.hh
new file mode 100644
index 000000000..35ff08b43
--- /dev/null
+++ b/src/arch/sparc/tlb.hh
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2006 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: Ali Saidi
+ */
+
+#ifndef __ARCH_SPARC_TLB_HH__
+#define __ARCH_SPARC_TLB_HH__
+
+
+#endif // __ARCH_SPARC_TLB_HH__
diff --git a/src/arch/sparc/ua2005.cc b/src/arch/sparc/ua2005.cc
new file mode 100644
index 000000000..b89d48663
--- /dev/null
+++ b/src/arch/sparc/ua2005.cc
@@ -0,0 +1,224 @@
+/*
+ * Copyright (c) 2006 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: Ali Saidi
+ */
+
+#include "arch/sparc/regfile.hh"
+
+Fault
+SparcISA::MiscRegFile::setFSRegWithEffect(int miscReg, const MiscReg &val,
+        ThreadContext *tc)
+{
+    int64_t time;
+    SparcSystem *sys;
+    switch (miscReg) {
+        /** Full system only ASRs */
+        case MISCREG_SOFTINT:
+          if (isNonPriv())
+              return new PrivilegedOpcode;
+          // Check if we are going to interrupt because of something
+          int oldLevel = InterruptLevel(softint);
+          int newLevel = InterruptLevel(val);
+          setReg(miscReg, val);
+          if (newLevel > oldLevel)
+              ; // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
+              //tc->getCpuPtr()->checkInterrupts = true;
+          return NoFault;
+
+        case MISCREG_SOFTINT_CLR:
+          return setRegWithEffect(miscReg, ~val & softint, tc);
+        case MISCREG_SOFTINT_SET:
+          return setRegWithEffect(miscReg, val | softint, tc);
+
+        case MISCREG_TICK_CMPR:
+          if (isNonPriv())
+              return new PrivilegedOpcode;
+          if (tickCompare == NULL)
+              tickCompare = new TickCompareEvent(this, tc);
+          setReg(miscReg, val);
+          if (tick_cmprFields.int_dis && tickCompare.scheduled())
+                  tickCompare.deschedule();
+          time = tick_cmprFields.tick_cmpr - tickFields.counter;
+          if (!tick_cmprFields.int_dis && time > 0)
+              tickCompare.schedule(time * tc->getCpuPtr()->cycles(1));
+          return NoFault;
+
+        case MISCREG_STICK:
+          if (isNonPriv())
+              return new PrivilegedOpcode;
+          if (isPriv())
+              return new PrivilegedAction;
+          sys = dynamic_cast<SparcSystem*>(tc->getSystemPtr());
+          assert(sys != NULL);
+          sys->sysTick = curTick/Clock::Int::ns - val & ~Bit64;
+          stickFields.npt = val & Bit64 ? 1 : 0;
+          return NoFault;
+
+        case MISCREG_STICK_CMPR:
+          if (isNonPriv())
+              return new PrivilegedOpcode;
+          if (sTickCompare == NULL)
+              sTickCompare = new STickCompareEvent(this, tc);
+          sys = dynamic_cast<SparcSystem*>(tc->getSystemPtr());
+          assert(sys != NULL);
+          setReg(miscReg, val);
+          if (stick_cmprFields.int_dis && sTickCompare.scheduled())
+                  sTickCompare.deschedule();
+          time = stick_cmprFields.tick_cmpr - sys->sysTick;
+          if (!stick_cmprFields.int_dis && time > 0)
+              sTickCompare.schedule(time * Clock::Int::ns);
+          return NoFault;
+
+        /** Fullsystem only Priv registers. */
+        case MISCREG_PIL:
+          if (FULL_SYSTEM) {
+              setReg(miscReg, val);
+              //tc->getCpuPtr()->checkInterrupts;
+               // MUST DO SOMETHING HERE TO TELL CPU TO LOOK FOR INTERRUPTS XXX
+              return NoFault;
+          } else
+              panic("PIL not implemented for syscall emulation\n");
+
+        /** Hyper privileged registers */
+        case MISCREG_HPSTATE:
+        case MISCREG_HINTP:
+          setReg(miscReg, val);
+          return NoFault;
+        case MISCREG_HTSTATE:
+          if (tl == 0)
+              return new IllegalInstruction;
+          setReg(miscReg, val);
+          return NoFault;
+
+        case MISCREG_HTBA:
+          // clear lower 7 bits on writes.
+          setReg(miscReg, val & ULL(~0x7FFF));
+          return NoFault;
+
+        case MISCREG_STRAND_STS_REG:
+          setReg(miscReg, strandStatusReg);
+          return NoFault;
+        case MISCREG_HSTICK_CMPR:
+          if (isNonPriv())
+              return new PrivilegedOpcode;
+          if (hSTickCompare == NULL)
+              hSTickCompare = new HSTickCompareEvent(this, tc);
+          sys = dynamic_cast<SparcSystem*>(tc->getSystemPtr());
+          assert(sys != NULL);
+          setReg(miscReg, val);
+          if (hstick_cmprFields.int_dis && hSTickCompare.scheduled())
+                  hSTickCompare.deschedule();
+          int64_t time = hstick_cmprFields.tick_cmpr - sys->sysTick;
+          if (!hstick_cmprFields.int_dis && time > 0)
+              hSTickCompare.schedule(time * Clock::Int::ns);
+          return NoFault;
+        default:
+          return new IllegalInstruction;
+    }
+}
+
+MiscReg
+MiscRegFile::readFSRegWithEffect(int miscReg, Fault &fault, ThreadContext * tc)
+{
+    switch (miscReg) {
+
+        /** Privileged registers. */
+        case MISCREG_SOFTINT:
+           if (isNonPriv()) {
+               fault = new PrivilegedOpcode;
+               return 0;
+           }
+           return readReg(miscReg);
+        case MISCREG_TICK_CMPR:
+           if (isNonPriv()) {
+               fault =  new PrivilegedOpcode;
+               return 0;
+           }
+           return readReg(miscReg);
+        case MISCREG_STICK:
+          SparcSystem *sys;
+          if (stickFields.npt && !isNonPriv()) {
+              fault = new PrivilegedAction;
+              return 0;
+          }
+          sys = dynamic_cast<SparcSystem*>(tc->getSystemPtr());
+          assert(sys != NULL);
+          return curTick/Clock::Int::ns - sys->sysTick | stickFields.npt << 63;
+        case MISCREG_STICK_CMPR:
+           if (isNonPriv()) {
+               fault =  new PrivilegedOpcode;
+               return 0;
+           }
+           return readReg(miscReg);
+
+
+        /** Hyper privileged registers */
+        case MISCREG_HPSTATE:
+        case MISCREG_HINTP:
+          return readReg(miscReg);
+        case MISCREG_HTSTATE:
+          if (tl == 0) {
+              fault = new IllegalInstruction;
+              return 0;
+          }
+          return readReg(miscReg);
+
+        case MISCREG_HTBA:
+          return readReg(miscReg) & ULL(~0x7FFF);
+        case MISCREG_HVER:
+          return NWindows | MaxTL << 8 | MaxGL << 16;
+        case MISCREG_STRAND_STS_REG:
+          return strandStatusReg;
+        case MISCREG_HSTICK_CMPR:
+          return hstick_cmpr;
+
+        default:
+          fault = new IllegalInstruction;
+          return 0;
+    }
+}
+
+void
+MiscRegFile::processTickCompare(ThreadContext *tc)
+{
+    panic("tick compare not implemented\n");
+}
+
+void
+MiscRegFile::processSTickCompare(ThreadContext *tc)
+{
+    panic("tick compare not implemented\n");
+}
+
+void
+MiscRegFile::processHSTickCompare(ThreadContext *tc)
+{
+    panic("tick compare not implemented\n");
+}
+
+}; // namespace SparcISA
diff --git a/src/arch/sparc/utility.hh b/src/arch/sparc/utility.hh
index 1e67b3370..f1c071148 100644
--- a/src/arch/sparc/utility.hh
+++ b/src/arch/sparc/utility.hh
@@ -24,6 +24,8 @@
  * 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_SPARC_UTILITY_HH__
@@ -79,10 +81,10 @@ namespace SparcISA
 
     /**
      * Function to insure ISA semantics about 0 registers.
-     * @param xc The execution context.
+     * @param tc The thread context.
      */
-    template <class XC>
-    void zeroRegisters(XC *xc);
+    template <class TC>
+    void zeroRegisters(TC *tc);
 
 } // namespace SparcISA
 
diff --git a/src/arch/sparc/vtophys.cc b/src/arch/sparc/vtophys.cc
new file mode 100644
index 000000000..f7fd92c15
--- /dev/null
+++ b/src/arch/sparc/vtophys.cc
@@ -0,0 +1,166 @@
+/*
+ * Copyright (c) 2002-2005 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: Nathan Binkert
+ *          Steve Reinhardt
+ *          Ali Saidi
+ */
+
+#include <string>
+
+#include "arch/alpha/ev5.hh"
+#include "arch/alpha/vtophys.hh"
+#include "base/chunk_generator.hh"
+#include "base/trace.hh"
+#include "cpu/thread_context.hh"
+#include "mem/vport.hh"
+
+using namespace std;
+using namespace AlphaISA;
+
+AlphaISA::PageTableEntry
+AlphaISA::kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, AlphaISA::VAddr vaddr)
+{
+    Addr level1_pte = ptbr + vaddr.level1();
+    AlphaISA::PageTableEntry level1 = mem->read<uint64_t>(level1_pte);
+    if (!level1.valid()) {
+        DPRINTF(VtoPhys, "level 1 PTE not valid, va = %#\n", vaddr);
+        return 0;
+    }
+
+    Addr level2_pte = level1.paddr() + vaddr.level2();
+    AlphaISA::PageTableEntry level2 = mem->read<uint64_t>(level2_pte);
+    if (!level2.valid()) {
+        DPRINTF(VtoPhys, "level 2 PTE not valid, va = %#x\n", vaddr);
+        return 0;
+    }
+
+    Addr level3_pte = level2.paddr() + vaddr.level3();
+    AlphaISA::PageTableEntry level3 = mem->read<uint64_t>(level3_pte);
+    if (!level3.valid()) {
+        DPRINTF(VtoPhys, "level 3 PTE not valid, va = %#x\n", vaddr);
+        return 0;
+    }
+    return level3;
+}
+
+Addr
+AlphaISA::vtophys(Addr vaddr)
+{
+    Addr paddr = 0;
+    if (AlphaISA::IsUSeg(vaddr))
+        DPRINTF(VtoPhys, "vtophys: invalid vaddr %#x", vaddr);
+    else if (AlphaISA::IsK0Seg(vaddr))
+        paddr = AlphaISA::K0Seg2Phys(vaddr);
+    else
+        panic("vtophys: ptbr is not set on virtual lookup");
+
+    DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
+
+    return paddr;
+}
+
+Addr
+AlphaISA::vtophys(ThreadContext *tc, Addr addr)
+{
+    AlphaISA::VAddr vaddr = addr;
+    Addr ptbr = tc->readMiscReg(AlphaISA::IPR_PALtemp20);
+    Addr paddr = 0;
+    //@todo Andrew couldn't remember why he commented some of this code
+    //so I put it back in. Perhaps something to do with gdb debugging?
+    if (AlphaISA::PcPAL(vaddr) && (vaddr < EV5::PalMax)) {
+        paddr = vaddr & ~ULL(1);
+    } else {
+        if (AlphaISA::IsK0Seg(vaddr)) {
+            paddr = AlphaISA::K0Seg2Phys(vaddr);
+        } else if (!ptbr) {
+            paddr = vaddr;
+        } else {
+            AlphaISA::PageTableEntry pte =
+                kernel_pte_lookup(tc->getPhysPort(), ptbr, vaddr);
+            if (pte.valid())
+                paddr = pte.paddr() | vaddr.offset();
+        }
+    }
+
+
+    DPRINTF(VtoPhys, "vtophys(%#x) -> %#x\n", vaddr, paddr);
+
+    return paddr;
+}
+
+
+void
+AlphaISA::CopyOut(ThreadContext *tc, void *dest, Addr src, size_t cplen)
+{
+    uint8_t *dst = (uint8_t *)dest;
+    VirtualPort *vp = tc->getVirtPort(tc);
+
+    vp->readBlob(src, dst, cplen);
+
+    tc->delVirtPort(vp);
+
+}
+
+void
+AlphaISA::CopyIn(ThreadContext *tc, Addr dest, void *source, size_t cplen)
+{
+    uint8_t *src = (uint8_t *)source;
+    VirtualPort *vp = tc->getVirtPort(tc);
+
+    vp->writeBlob(dest, src, cplen);
+
+    tc->delVirtPort(vp);
+}
+
+void
+AlphaISA::CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen)
+{
+    int len = 0;
+    VirtualPort *vp = tc->getVirtPort(tc);
+
+    do {
+        vp->readBlob(vaddr++, (uint8_t*)dst++, 1);
+        len++;
+    } while (len < maxlen && dst[len] != 0 );
+
+    tc->delVirtPort(vp);
+    dst[len] = 0;
+}
+
+void
+AlphaISA::CopyStringIn(ThreadContext *tc, char *src, Addr vaddr)
+{
+    VirtualPort *vp = tc->getVirtPort(tc);
+    for (ChunkGenerator gen(vaddr, strlen(src), AlphaISA::PageBytes); !gen.done();
+            gen.next())
+    {
+        vp->writeBlob(gen.addr(), (uint8_t*)src, gen.size());
+        src += gen.size();
+    }
+    tc->delVirtPort(vp);
+}
diff --git a/src/arch/sparc/vtophys.hh b/src/arch/sparc/vtophys.hh
new file mode 100644
index 000000000..bf2b757d6
--- /dev/null
+++ b/src/arch/sparc/vtophys.hh
@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2002-2005 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: Nathan Binkert
+ *          Steve Reinhardt
+ */
+
+#ifndef __ARCH_SPARC_VTOPHYS_H__
+#define __ARCH_SPARC_VTOPHYS_H__
+
+#include "arch/sparc/isa_traits.hh"
+
+class ThreadContext;
+class FunctionalPort;
+
+namespace SparcISA {
+
+PageTableEntry
+kernel_pte_lookup(FunctionalPort *mem, Addr ptbr, SparcISA::VAddr vaddr);
+
+Addr vtophys(Addr vaddr);
+Addr vtophys(ThreadContext *tc, Addr vaddr);
+
+void CopyOut(ThreadContext *tc, void *dst, Addr src, size_t len);
+void CopyIn(ThreadContext *tc, Addr dst, void *src, size_t len);
+void CopyStringOut(ThreadContext *tc, char *dst, Addr vaddr, size_t maxlen);
+void CopyStringIn(ThreadContext *tc, char *src, Addr vaddr);
+
+};
+#endif // __ARCH_SPARC_VTOPHYS_H__
+