Merge zizzer:/bk/newmem

into  zower.eecs.umich.edu:/eecshome/m5/newmem

--HG--
extra : convert_revision : f4a05accb8fa24d425dd818b1b7f268378180e99

65 files changed, 2277 insertions, 926 deletions

diff --git a/configs/example/fs.py b/configs/example/fs.py
index d479d717e..b878f2bd4 100644
--- a/configs/example/fs.py
+++ b/configs/example/fs.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2006 The Regents of The University of Michigan
+# Copyright (c) 2006-2007 The Regents of The University of Michigan
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -46,6 +46,10 @@ config_root = os.path.dirname(config_path)
 
 parser = optparse.OptionParser()
 
+# System options
+parser.add_option("--kernel", action="store", type="string")
+parser.add_option("--script", action="store", type="string")
+
 # Benchmark options
 parser.add_option("--l2cache", action="store_true")
 parser.add_option("--dual", action="store_true",
@@ -99,6 +103,12 @@ elif m5.build_env['TARGET_ISA'] == "sparc":
 else:
     m5.panic("incapable of building non-alpha or non-sparc full system!")
 
+if options.kernel is not None:
+    test_sys.kernel = binary(options.kernel)
+
+if options.script is not None:
+    test_sys.readfile = options.script
+
 np = options.num_cpus
 
 if options.l2cache:
diff --git a/src/SConscript b/src/SConscript
index 5b90cdeae..a998dd561 100644
--- a/src/SConscript
+++ b/src/SConscript
@@ -115,11 +115,9 @@ base_sources = Split('''
         mem/cache/miss/mshr_queue.cc
         mem/cache/prefetch/base_prefetcher.cc
         mem/cache/prefetch/ghb_prefetcher.cc
-        mem/cache/prefetch/prefetcher.cc
         mem/cache/prefetch/stride_prefetcher.cc
         mem/cache/prefetch/tagged_prefetcher.cc
         mem/cache/tags/base_tags.cc
-        mem/cache/tags/cache_tags.cc
         mem/cache/tags/fa_lru.cc
         mem/cache/tags/iic.cc
         mem/cache/tags/lru.cc
@@ -131,8 +129,11 @@ base_sources = Split('''
 
         mem/cache/cache_builder.cc
 
+        python/swig/init.cc
         python/swig/debug_wrap.cc
         python/swig/main_wrap.cc
+        python/swig/event_wrap.cc
+        python/swig/pyevent.cc
 
 	sim/builder.cc
 	sim/debug.cc
diff --git a/src/arch/sparc/isa/decoder.isa b/src/arch/sparc/isa/decoder.isa
index e8578291c..8abaf1007 100644
--- a/src/arch/sparc/isa/decoder.isa
+++ b/src/arch/sparc/isa/decoder.isa
@@ -1,4 +1,4 @@
-// Copyright (c) 2006 The Regents of The University of Michigan
+// Copyright (c) 2006-2007 The Regents of The University of Michigan
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -1039,11 +1039,31 @@ decode OP default Unknown::unknown()
             0x10: lduwa({{Rd = Mem.uw;}}, {{EXT_ASI}});
             0x11: lduba({{Rd = Mem.ub;}}, {{EXT_ASI}});
             0x12: lduha({{Rd = Mem.uhw;}}, {{EXT_ASI}});
-            0x13: ldtwa({{
-                uint64_t val = Mem.udw;
-                RdLow = val<31:0>;
-                RdHigh = val<63:32>;
-            }}, {{EXT_ASI}});
+            0x13: decode EXT_ASI {
+                //ASI_QUAD_LDD
+                0x24: TwinLoad::ldtx_quad_ldd(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+                //ASI_LDTX_REAL
+                0x26: TwinLoad::ldtx_real(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+               //ASI_LDTX_N
+               0x27: TwinLoad::ldtx_n(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+               //ASI_LDTX_L
+               0x2C: TwinLoad::ldtx_l(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+                //ASI_LDTX_REAL_L
+                0x2E: TwinLoad::ldtx_real_l(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+                //ASI_LDTX_N_L
+                0x2F: TwinLoad::ldtx_n_l(
+                    {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
+                default: ldtwa({{
+                        uint64_t val = Mem.udw;
+                        RdLow = val<31:0>;
+                        RdHigh = val<63:32>;
+                        }}, {{EXT_ASI}});
+            }
         }
         format StoreAlt {
             0x14: stwa({{Mem.uw = Rd;}}, {{EXT_ASI}});
@@ -1105,18 +1125,6 @@ decode OP default Unknown::unknown()
                     0x15: FailUnimpl::lddfa_real_io();
                     //ASI_REAL_IO_LITTLE
                     0x1D: FailUnimpl::lddfa_real_io_l();
-                    //ASI_LDTX_REAL
-                    0x26: TwinLoad::ldtx_real(
-                        {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
-                    //ASI_LDTX_N
-                    0x27: TwinLoad::ldtx_n(
-                        {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
-                    //ASI_LDTX_REAL_L
-                    0x2E: TwinLoad::ldtx_real_l(
-                        {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
-                    //ASI_LDTX_N_L
-                    0x2F: TwinLoad::ldtx_n_l(
-                        {{RdTwin.udw = Mem.udw}}, {{EXT_ASI}});
                     //ASI_PRIMARY
                     0x80: FailUnimpl::lddfa_p();
                     //ASI_PRIMARY_LITTLE
diff --git a/src/arch/sparc/isa/formats/mem/blockmem.isa b/src/arch/sparc/isa/formats/mem/blockmem.isa
index c4f052f98..62ac4b43a 100644
--- a/src/arch/sparc/isa/formats/mem/blockmem.isa
+++ b/src/arch/sparc/isa/formats/mem/blockmem.isa
@@ -1,4 +1,4 @@
-// Copyright (c) 2006 The Regents of The University of Michigan
+// Copyright (c) 2006-2007 The Regents of The University of Michigan
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -101,7 +101,7 @@ output header {{
             // We make the assumption that all block memory operations
             // Will take 8 instructions to execute
             TwinMem(const char *mnem, ExtMachInst _machInst) :
-                SparcMacroInst(mnem, _machInst, No_OpClass, 8)
+                SparcMacroInst(mnem, _machInst, No_OpClass, 2)
             {}
         };
 
diff --git a/src/arch/sparc/isa/formats/mem/util.isa b/src/arch/sparc/isa/formats/mem/util.isa
index c56821c4f..5bb4e1fe6 100644
--- a/src/arch/sparc/isa/formats/mem/util.isa
+++ b/src/arch/sparc/isa/formats/mem/util.isa
@@ -1,4 +1,4 @@
-// Copyright (c) 2006 The Regents of The University of Michigan
+// Copyright (c) 2006-2007 The Regents of The University of Michigan
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -295,9 +295,9 @@ let {{
             fault = new MemAddressNotAligned;
     '''
     TwinAlignmentFaultCheck = '''
-        if(RD & 0xe)
+        if(RD & 0x1)
             fault = new IllegalInstruction;
-        else if(EA & 0x1f)
+        else if(EA & 0xf)
             fault = new MemAddressNotAligned;
     '''
     # XXX Need to take care of pstate.hpriv as well. The lower ASIs
diff --git a/src/arch/sparc/tlb.cc b/src/arch/sparc/tlb.cc
index 675287d18..40542a9a6 100644
--- a/src/arch/sparc/tlb.cc
+++ b/src/arch/sparc/tlb.cc
@@ -45,7 +45,8 @@ namespace SparcISA
 {
 
 TLB::TLB(const std::string &name, int s)
-    : SimObject(name), size(s), usedEntries(0), cacheValid(false)
+    : SimObject(name), size(s), usedEntries(0), lastReplaced(0),
+      cacheValid(false)
 {
     // To make this work you'll have to change the hypervisor and OS
     if (size > 64)
@@ -53,13 +54,16 @@ TLB::TLB(const std::string &name, int s)
 
     tlb = new TlbEntry[size];
     memset(tlb, 0, sizeof(TlbEntry) * size);
+
+    for (int x = 0; x < size; x++)
+        freeList.push_back(&tlb[x]);
 }
 
 void
 TLB::clearUsedBits()
 {
     MapIter i;
-    for (i = lookupTable.begin(); i != lookupTable.end();) {
+    for (i = lookupTable.begin(); i != lookupTable.end(); i++) {
         TlbEntry *t = i->second;
         if (!t->pte.locked()) {
             t->used = false;
@@ -77,32 +81,76 @@ TLB::insert(Addr va, int partition_id, int context_id, bool real,
 
     MapIter i;
     TlbEntry *new_entry = NULL;
+    TlbRange tr;
     int x;
 
     cacheValid = false;
+    tr.va = va;
+    tr.size = PTE.size() - 1;
+    tr.contextId = context_id;
+    tr.partitionId = partition_id;
+    tr.real = real;
+
+
+    DPRINTF(TLB, "TLB: Inserting TLB Entry; va=%#x pa=%#x pid=%d cid=%d r=%d entryid=%d\n",
+            va, PTE.paddr(), partition_id, context_id, (int)real, entry);
+
+    // Demap any entry that conflicts
+    i = lookupTable.find(tr);
+    if (i != lookupTable.end()) {
+        i->second->valid = false;
+        if (i->second->used) {
+            i->second->used = false;
+            usedEntries--;
+        }
+        freeList.push_front(i->second);
+        DPRINTF(TLB, "TLB: Found conflicting entry %#X , deleting it\n",
+                i->second);
+        lookupTable.erase(i);
+    }
 
-    DPRINTF(TLB, "TLB: Inserting TLB Entry; va=%#x pa=%#x pid=%d cid=%d r=%d\n",
-            va, PTE.paddr(), partition_id, context_id, (int)real);
 
     if (entry != -1) {
         assert(entry < size && entry >= 0);
         new_entry = &tlb[entry];
     } else {
+        if (!freeList.empty()) {
+            new_entry = freeList.front();
+        } else {
+            x = lastReplaced;
+            do {
+                ++x;
+                if (x == size)
+                    x = 0;
+                if (x == lastReplaced)
+                    goto insertAllLocked;
+            } while (tlb[x].pte.locked());
+            lastReplaced = x;
+            new_entry = &tlb[x];
+            lookupTable.erase(new_entry->range);
+        }
+        /*
         for (x = 0; x < size; x++) {
             if (!tlb[x].valid || !tlb[x].used)  {
                 new_entry = &tlb[x];
                 break;
             }
-        }
+        }*/
     }
 
+insertAllLocked:
     // Update the last ently if their all locked
-    if (!new_entry)
+    if (!new_entry) {
         new_entry = &tlb[size-1];
+        lookupTable.erase(new_entry->range);
+    }
+
+    freeList.remove(new_entry);
+    DPRINTF(TLB, "Using entry: %#X\n", new_entry);
 
     assert(PTE.valid());
     new_entry->range.va = va;
-    new_entry->range.size = PTE.size();
+    new_entry->range.size = PTE.size() - 1;
     new_entry->range.partitionId = partition_id;
     new_entry->range.contextId = context_id;
     new_entry->range.real = real;
@@ -112,19 +160,9 @@ TLB::insert(Addr va, int partition_id, int context_id, bool real,
     usedEntries++;
 
 
-    // Demap any entry that conflicts
-    i = lookupTable.find(new_entry->range);
-    if (i != lookupTable.end()) {
-        i->second->valid = false;
-        if (i->second->used) {
-            i->second->used = false;
-            usedEntries--;
-        }
-        DPRINTF(TLB, "TLB: Found conflicting entry, deleting it\n");
-        lookupTable.erase(i);
-    }
 
-    lookupTable.insert(new_entry->range, new_entry);;
+    i = lookupTable.insert(new_entry->range, new_entry);
+    assert(i != lookupTable.end());
 
     // If all entries have there used bit set, clear it on them all, but the
     // one we just inserted
@@ -148,7 +186,7 @@ TLB::lookup(Addr va, int partition_id, bool real, int context_id)
             va, partition_id, context_id, real);
     // Assemble full address structure
     tr.va = va;
-    tr.size = va + MachineBytes;
+    tr.size = MachineBytes;
     tr.contextId = context_id;
     tr.partitionId = partition_id;
     tr.real = real;
@@ -180,6 +218,7 @@ TLB::lookup(Addr va, int partition_id, bool real, int context_id)
 void
 TLB::dumpAll()
 {
+    MapIter i;
     for (int x = 0; x < size; x++) {
         if (tlb[x].valid) {
            DPRINTFN("%4d:  %#2x:%#2x %c %#4x %#8x %#8x %#16x\n",
@@ -196,11 +235,14 @@ TLB::demapPage(Addr va, int partition_id, bool real, int context_id)
     TlbRange tr;
     MapIter i;
 
+    DPRINTF(IPR, "TLB: Demapping Page va=%#x pid=%#d cid=%d r=%d\n",
+            va, partition_id, context_id, real);
+
     cacheValid = false;
 
     // Assemble full address structure
     tr.va = va;
-    tr.size = va + MachineBytes;
+    tr.size = MachineBytes;
     tr.contextId = context_id;
     tr.partitionId = partition_id;
     tr.real = real;
@@ -208,11 +250,14 @@ TLB::demapPage(Addr va, int partition_id, bool real, int context_id)
     // Demap any entry that conflicts
     i = lookupTable.find(tr);
     if (i != lookupTable.end()) {
+        DPRINTF(IPR, "TLB: Demapped page\n");
         i->second->valid = false;
         if (i->second->used) {
             i->second->used = false;
             usedEntries--;
         }
+        freeList.push_front(i->second);
+        DPRINTF(TLB, "Freeing TLB entry : %#X\n", i->second);
         lookupTable.erase(i);
     }
 }
@@ -221,10 +266,16 @@ void
 TLB::demapContext(int partition_id, int context_id)
 {
     int x;
+    DPRINTF(IPR, "TLB: Demapping Context pid=%#d cid=%d\n",
+            partition_id, context_id);
     cacheValid = false;
     for (x = 0; x < size; x++) {
         if (tlb[x].range.contextId == context_id &&
             tlb[x].range.partitionId == partition_id) {
+            if (tlb[x].valid == true) {
+                freeList.push_front(&tlb[x]);
+                DPRINTF(TLB, "Freeing TLB entry : %#X\n", &tlb[x]);
+            }
             tlb[x].valid = false;
             if (tlb[x].used) {
                 tlb[x].used = false;
@@ -239,9 +290,14 @@ void
 TLB::demapAll(int partition_id)
 {
     int x;
+    DPRINTF(TLB, "TLB: Demapping All pid=%#d\n", partition_id);
     cacheValid = false;
     for (x = 0; x < size; x++) {
         if (!tlb[x].pte.locked() && tlb[x].range.partitionId == partition_id) {
+            if (tlb[x].valid == true){
+                freeList.push_front(&tlb[x]);
+                DPRINTF(TLB, "Freeing TLB entry : %#X\n", &tlb[x]);
+            }
             tlb[x].valid = false;
             if (tlb[x].used) {
                 tlb[x].used = false;
@@ -258,7 +314,10 @@ TLB::invalidateAll()
     int x;
     cacheValid = false;
 
+    freeList.clear();
     for (x = 0; x < size; x++) {
+        if (tlb[x].valid == true)
+            freeList.push_back(&tlb[x]);
         tlb[x].valid = false;
     }
     usedEntries = 0;
@@ -266,17 +325,26 @@ TLB::invalidateAll()
 
 uint64_t
 TLB::TteRead(int entry) {
+    if (entry >= size)
+        panic("entry: %d\n", entry);
+
     assert(entry < size);
-    return tlb[entry].pte();
+    if (tlb[entry].valid)
+        return tlb[entry].pte();
+    else
+        return (uint64_t)-1ll;
 }
 
 uint64_t
 TLB::TagRead(int entry) {
     assert(entry < size);
     uint64_t tag;
+    if (!tlb[entry].valid)
+        return (uint64_t)-1ll;
 
-    tag = tlb[entry].range.contextId | tlb[entry].range.va |
-          (uint64_t)tlb[entry].range.partitionId << 61;
+    tag = tlb[entry].range.contextId;
+    tag |= tlb[entry].range.va;
+    tag |= (uint64_t)tlb[entry].range.partitionId << 61;
     tag |= tlb[entry].range.real ? ULL(1) << 60 : 0;
     tag |= (uint64_t)~tlb[entry].pte._size() << 56;
     return tag;
@@ -492,13 +560,13 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
     // Be fast if we can!
     if (cacheValid &&  cacheState == tlbdata) {
         if (cacheEntry[0] && cacheAsi[0] == asi && cacheEntry[0]->range.va < vaddr + size &&
-            cacheEntry[0]->range.va + cacheEntry[0]->range.size >= vaddr) {
+            cacheEntry[0]->range.va + cacheEntry[0]->range.size > vaddr) {
                 req->setPaddr(cacheEntry[0]->pte.paddr() & ~(cacheEntry[0]->pte.size()-1) |
                               vaddr & cacheEntry[0]->pte.size()-1 );
                 return NoFault;
         }
         if (cacheEntry[1] && cacheAsi[1] == asi && cacheEntry[1]->range.va < vaddr + size &&
-            cacheEntry[1]->range.va + cacheEntry[1]->range.size >= vaddr) {
+            cacheEntry[1]->range.va + cacheEntry[1]->range.size > vaddr) {
                 req->setPaddr(cacheEntry[1]->pte.paddr() & ~(cacheEntry[1]->pte.size()-1) |
                               vaddr & cacheEntry[1]->pte.size()-1 );
                 return NoFault;
@@ -575,6 +643,9 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
         if (write && asi == ASI_LDTX_P)
             // block init store (like write hint64)
             goto continueDtbFlow;
+        if (!write && asi == ASI_QUAD_LDD)
+            goto continueDtbFlow;
+
         if (AsiIsTwin(asi))
             panic("Twin ASIs not supported\n");
         if (AsiIsPartialStore(asi))
@@ -655,8 +726,12 @@ continueDtbFlow:
     }
 
     // cache translation date for next translation
-    cacheValid = true;
     cacheState = tlbdata;
+    if (!cacheValid) {
+        cacheEntry[1] = NULL;
+        cacheEntry[0] = NULL;
+    }
+
     if (cacheEntry[0] != e && cacheEntry[1] != e) {
         cacheEntry[1] = cacheEntry[0];
         cacheEntry[0] = e;
@@ -665,7 +740,7 @@ continueDtbFlow:
         if (implicit)
             cacheAsi[0] = (ASI)0;
     }
-
+    cacheValid = true;
     req->setPaddr(e->pte.paddr() & ~(e->pte.size()-1) |
                   vaddr & e->pte.size()-1);
     DPRINTF(TLB, "TLB: %#X -> %#X\n", vaddr, req->getPaddr());
@@ -684,7 +759,7 @@ handleQueueRegAccess:
         writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi);
         return new PrivilegedAction;
     }
-    if (priv && vaddr & 0xF || vaddr > 0x3f8 || vaddr < 0x3c0) {
+    if (!hpriv && vaddr & 0xF || vaddr > 0x3f8 || vaddr < 0x3c0) {
         writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi);
         return new DataAccessException;
     }
@@ -881,6 +956,9 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
     int part_insert;
     int entry_insert = -1;
     bool real_insert;
+    bool ignore;
+    int part_id;
+    int ctx_id;
     PageTableEntry pte;
 
     DPRINTF(IPR, "Memory Mapped IPR Write: asi=%#X a=%#x d=%#X\n",
@@ -1000,6 +1078,41 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
                 PageTableEntry::sun4u);
         insert(va_insert, part_insert, ct_insert, real_insert, pte, entry_insert);
         break;
+      case ASI_IMMU_DEMAP:
+        ignore = false;
+        ctx_id = -1;
+        part_id =  tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID);
+        switch (bits(va,5,4)) {
+          case 0:
+            ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_P_CONTEXT);
+            break;
+          case 1:
+            ignore = true;
+            break;
+          case 3:
+            ctx_id = 0;
+            break;
+          default:
+            ignore = true;
+        }
+
+        switch(bits(va,7,6)) {
+          case 0: // demap page
+            if (!ignore)
+                tc->getITBPtr()->demapPage(mbits(va,63,13), part_id,
+                        bits(va,9,9), ctx_id);
+            break;
+          case 1: //demap context
+            if (!ignore)
+                tc->getITBPtr()->demapContext(part_id, ctx_id);
+            break;
+          case 2:
+            tc->getITBPtr()->demapAll(part_id);
+            break;
+          default:
+            panic("Invalid type for IMMU demap\n");
+        }
+        break;
       case ASI_DMMU:
         switch (va) {
           case 0x30:
@@ -1012,6 +1125,40 @@ DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
             goto doMmuWriteError;
         }
         break;
+      case ASI_DMMU_DEMAP:
+        ignore = false;
+        ctx_id = -1;
+        part_id =  tc->readMiscRegWithEffect(MISCREG_MMU_PART_ID);
+        switch (bits(va,5,4)) {
+          case 0:
+            ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_P_CONTEXT);
+            break;
+          case 1:
+            ctx_id = tc->readMiscRegWithEffect(MISCREG_MMU_S_CONTEXT);
+            break;
+          case 3:
+            ctx_id = 0;
+            break;
+          default:
+            ignore = true;
+        }
+
+        switch(bits(va,7,6)) {
+          case 0: // demap page
+            if (!ignore)
+                demapPage(mbits(va,63,13), part_id, bits(va,9,9), ctx_id);
+            break;
+          case 1: //demap context
+            if (!ignore)
+                demapContext(part_id, ctx_id);
+            break;
+          case 2:
+            demapAll(part_id);
+            break;
+          default:
+            panic("Invalid type for IMMU demap\n");
+        }
+        break;
       default:
 doMmuWriteError:
         panic("need to impl DTB::doMmuRegWrite() got asi=%#x, va=%#x d=%#x\n",
diff --git a/src/arch/sparc/tlb.hh b/src/arch/sparc/tlb.hh
index a6e6a8bd3..34e5f5feb 100644
--- a/src/arch/sparc/tlb.hh
+++ b/src/arch/sparc/tlb.hh
@@ -54,10 +54,13 @@ class TLB : public SimObject
 
     int size;
     int usedEntries;
+    int lastReplaced;
 
     uint64_t cacheState;
     bool cacheValid;
 
+    std::list<TlbEntry*> freeList;
+
     enum FaultTypes {
         OtherFault = 0,
         PrivViolation = 0x1,
@@ -93,9 +96,6 @@ class TLB : public SimObject
     /** Given an entry id, read that tlb entries' tag. */
     uint64_t TagRead(int entry);
 
-    /** Give an entry id, read that tlb entries' tte */
-    uint64_t TteRead(int entry);
-
     /** Remove all entries from the TLB */
     void invalidateAll();
 
@@ -128,6 +128,10 @@ class TLB : public SimObject
     // Checkpointing
     virtual void serialize(std::ostream &os);
     virtual void unserialize(Checkpoint *cp, const std::string &section);
+
+    /** Give an entry id, read that tlb entries' tte */
+    uint64_t TteRead(int entry);
+
 };
 
 class ITB : public TLB
diff --git a/src/base/cprintf.hh b/src/base/cprintf.hh
index 6b2a77f90..9967b0578 100644
--- a/src/base/cprintf.hh
+++ b/src/base/cprintf.hh
@@ -165,36 +165,6 @@ __csprintf(const std::string &format, ArgList &args)
 #define csprintf(args...) \
     __csprintf__(args, cp::ArgListNull())
 
-template<class T>
-inline ArgList &
-operator<<(ArgList &list, const T &data)
-{
-    list.append(data);
-    return list;
-}
-
-inline ArgList &
-operator<<(std::ostream &str, ArgList &list)
-{
-    list.stream = &str;
-    return list;
-}
-
-class ArgListTemp
-{
-  private:
-    std::string format;
-    ArgList *args;
-
-  public:
-    ArgListTemp(const std::string &f) : format(f) { args = new ArgList; }
-    ~ArgListTemp() { args->dump(format); delete args; }
-
-    operator ArgList *() { return args; }
-};
-
-#define cformat(format) \
-    (*((cp::ArgList *)cp::ArgListTemp(format)))
 }
 
 #endif // __CPRINTF_HH__
diff --git a/src/base/cprintf_formats.hh b/src/base/cprintf_formats.hh
index 58ee7f795..3ea20446d 100644
--- a/src/base/cprintf_formats.hh
+++ b/src/base/cprintf_formats.hh
@@ -288,13 +288,13 @@ format_integer(std::ostream &out, const T &data, Format &fmt)
 { _format_integer(out, data, fmt); }
 inline void
 format_integer(std::ostream &out, char data, Format &fmt)
-{ _format_integer(out, data, fmt); }
+{ _format_integer(out, (int)data, fmt); }
 inline void
 format_integer(std::ostream &out, unsigned char data, Format &fmt)
-{ _format_integer(out, data, fmt); }
+{ _format_integer(out, (int)data, fmt); }
 inline void
 format_integer(std::ostream &out, signed char data, Format &fmt)
-{ _format_integer(out, data, fmt); }
+{ _format_integer(out, (int)data, fmt); }
 #if 0
 inline void
 format_integer(std::ostream &out, short data, Format &fmt)
diff --git a/src/base/refcnt.hh b/src/base/refcnt.hh
index 6672d4a5f..d1663ad72 100644
--- a/src/base/refcnt.hh
+++ b/src/base/refcnt.hh
@@ -28,10 +28,8 @@
  * Authors: Nathan Binkert
  */
 
-#ifndef __REFCNT_HH__
-#define __REFCNT_HH__
-
-#include <stddef.h> //For the NULL macro definition
+#ifndef __BASE_REFCNT_HH__
+#define __BASE_REFCNT_HH__
 
 class RefCounted
 {
@@ -77,7 +75,7 @@ class RefCountingPtr
 
 
   public:
-    RefCountingPtr() : data(NULL) {}
+    RefCountingPtr() : data(0) {}
     RefCountingPtr(T *data) { copy(data); }
     RefCountingPtr(const RefCountingPtr &r) { copy(r.data); }
     ~RefCountingPtr() { del(); }
@@ -90,8 +88,8 @@ class RefCountingPtr
     const T &operator*() const { return *data; }
     const T *get() const { return data; }
 
-    RefCountingPtr &operator=(T *p) { set(p); return *this; }
-    RefCountingPtr &operator=(const RefCountingPtr &r)
+    const RefCountingPtr &operator=(T *p) { set(p); return *this; }
+    const RefCountingPtr &operator=(const RefCountingPtr &r)
     { return operator=(r.data); }
 
     bool operator!() const { return data == 0; }
@@ -122,4 +120,4 @@ template<class T>
 bool operator!=(const T &l, const RefCountingPtr<T> &r)
 { return l != r.get(); }
 
-#endif // __REFCNT_HH__
+#endif // __BASE_REFCNT_HH__
diff --git a/src/cpu/exetrace.cc b/src/cpu/exetrace.cc
index 98e75d83a..378fcd09b 100644
--- a/src/cpu/exetrace.cc
+++ b/src/cpu/exetrace.cc
@@ -314,6 +314,7 @@ Trace::InstRecord::dump(ostream &outs)
         bool diffCanrestore = false;
         bool diffOtherwin = false;
         bool diffCleanwin = false;
+        bool diffTlb = false;
         Addr m5Pc, lgnPc;
 
 
@@ -409,13 +410,24 @@ Trace::InstRecord::dump(ostream &outs)
                             thread->readMiscReg(NumIntArchRegs + 6))
                         diffCleanwin = true;
 
+                    for (int i = 0; i < 64; i++) {
+                        if (shared_data->itb[i] !=  thread->getITBPtr()->TteRead(i))
+                                diffTlb = true;
+                        if (shared_data->dtb[i] !=  thread->getDTBPtr()->TteRead(i))
+                                diffTlb = true;
+                    }
+
                     if ((diffPC || diffCC || diffInst || diffRegs || diffTpc ||
                             diffTnpc || diffTstate || diffTt || diffHpstate ||
                             diffHtstate || diffHtba || diffPstate || diffY ||
                             diffCcr || diffTl || diffGl || diffAsi || diffPil ||
                             diffCwp || diffCansave || diffCanrestore ||
-                            diffOtherwin || diffCleanwin)
-                        && !((staticInst->machInst & 0xC1F80000) == 0x81D00000)) {
+                            diffOtherwin || diffCleanwin || diffTlb)
+                        && !((staticInst->machInst & 0xC1F80000) == 0x81D00000)
+                        && !(((staticInst->machInst & 0xC0000000) == 0xC0000000)
+                            && shared_data->tl == thread->readMiscReg(MISCREG_TL) + 1)
+                       ) {
+
                         outs << "Differences found between M5 and Legion:";
                         if (diffPC)
                             outs << " [PC]";
@@ -463,6 +475,8 @@ Trace::InstRecord::dump(ostream &outs)
                             outs << " [Otherwin]";
                         if (diffCleanwin)
                             outs << " [Cleanwin]";
+                        if (diffTlb)
+                            outs << " [Tlb]";
                         outs << endl << endl;
 
                         outs << right << setfill(' ') << setw(15)
@@ -593,6 +607,22 @@ Trace::InstRecord::dump(ostream &outs)
                                     << endl;*/
                             }
                         }
+                        printColumnLabels(outs);
+                        char label[8];
+                        for (int x = 0; x < 64; x++) {
+                            if (shared_data->itb[x] !=  ULL(0xFFFFFFFFFFFFFFFF) ||
+                                thread->getITBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF))  {
+                                    sprintf(label, "I-TLB:%02d", x);
+                                    printRegPair(outs, label, thread->getITBPtr()->TteRead(x), shared_data->itb[x]);
+                            }
+                        }
+                        for (int x = 0; x < 64; x++) {
+                            if (shared_data->dtb[x] !=  ULL(0xFFFFFFFFFFFFFFFF) ||
+                                thread->getDTBPtr()->TteRead(x) != ULL(0xFFFFFFFFFFFFFFFF))  {
+                                    sprintf(label, "D-TLB:%02d", x);
+                                    printRegPair(outs, label, thread->getDTBPtr()->TteRead(x), shared_data->dtb[x]);
+                            }
+                        }
                         thread->getITBPtr()->dumpAll();
                         thread->getDTBPtr()->dumpAll();
 
diff --git a/src/cpu/m5legion_interface.h b/src/cpu/m5legion_interface.h
index bfb88485a..4cb270e66 100644
--- a/src/cpu/m5legion_interface.h
+++ b/src/cpu/m5legion_interface.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006 The Regents of The University of Michigan
+ * Copyright (c) 2006-2007 The Regents of The University of Michigan
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -30,7 +30,7 @@
 
 #include <unistd.h>
 
-#define VERSION         0xA1000006
+#define VERSION         0xA1000007
 #define OWN_M5          0x000000AA
 #define OWN_LEGION      0x00000055
 
@@ -72,6 +72,9 @@ typedef struct {
     uint8_t otherwin;
     uint8_t cleanwin;
 
+    uint64_t itb[64];
+    uint64_t dtb[64];
+
 } SharedData;
 
 /** !!! ^^^  Increment VERSION on change ^^^ !!! **/
diff --git a/src/cpu/o3/commit_impl.hh b/src/cpu/o3/commit_impl.hh
index 07aadbfb0..75fe1ed2a 100644
--- a/src/cpu/o3/commit_impl.hh
+++ b/src/cpu/o3/commit_impl.hh
@@ -387,9 +387,12 @@ void
 DefaultCommit<Impl>::updateStatus()
 {
     // reset ROB changed variable
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
-    while (threads != (*activeThreads).end()) {
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
         unsigned tid = *threads++;
+
         changedROBNumEntries[tid] = false;
 
         // Also check if any of the threads has a trap pending
@@ -416,9 +419,10 @@ DefaultCommit<Impl>::setNextStatus()
 {
     int squashes = 0;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (commitStatus[tid] == ROBSquashing) {
@@ -439,9 +443,10 @@ template <class Impl>
 bool
 DefaultCommit<Impl>::changedROBEntries()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (changedROBNumEntries[tid]) {
@@ -564,14 +569,15 @@ DefaultCommit<Impl>::tick()
         return;
     }
 
-    if ((*activeThreads).size() <= 0)
+    if (activeThreads->empty())
         return;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
     // Check if any of the threads are done squashing.  Change the
     // status if they are done.
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (commitStatus[tid] == ROBSquashing) {
@@ -592,9 +598,9 @@ DefaultCommit<Impl>::tick()
 
     markCompletedInsts();
 
-    threads = (*activeThreads).begin();
+    threads = activeThreads->begin();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (!rob->isEmpty(tid) && rob->readHeadInst(tid)->readyToCommit()) {
@@ -692,9 +698,10 @@ DefaultCommit<Impl>::commit()
     ////////////////////////////////////
     // Check for any possible squashes, handle them first
     ////////////////////////////////////
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         // Not sure which one takes priority.  I think if we have
@@ -802,9 +809,9 @@ DefaultCommit<Impl>::commit()
     }
 
     //Check for any activity
-    threads = (*activeThreads).begin();
+    threads = activeThreads->begin();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (changedROBNumEntries[tid]) {
@@ -971,20 +978,19 @@ DefaultCommit<Impl>::commitHead(DynInstPtr &head_inst, unsigned inst_num)
                     "instruction [sn:%lli] at the head of the ROB, PC %#x.\n",
                     head_inst->seqNum, head_inst->readPC());
 
-#if !FULL_SYSTEM
             // Hack to make sure syscalls/memory barriers/quiesces
             // aren't executed until all stores write back their data.
             // This direct communication shouldn't be used for
             // anything other than this.
-            if (inst_num > 0 || iewStage->hasStoresToWB())
-#else
             if ((head_inst->isMemBarrier() || head_inst->isWriteBarrier() ||
                     head_inst->isQuiesce()) &&
                 iewStage->hasStoresToWB())
-#endif
             {
                 DPRINTF(Commit, "Waiting for all stores to writeback.\n");
                 return false;
+            } else if (inst_num > 0 || iewStage->hasStoresToWB()) {
+                DPRINTF(Commit, "Waiting to become head of commit.\n");
+                return false;
             }
 
             toIEW->commitInfo[tid].nonSpecSeqNum = head_inst->seqNum;
@@ -1254,9 +1260,10 @@ template <class Impl>
 bool
 DefaultCommit<Impl>::robDoneSquashing()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (!rob->isDoneSquashing(tid))
@@ -1335,7 +1342,8 @@ DefaultCommit<Impl>::getCommittingThread()
             return -1;
         }
     } else {
-        int tid = (*activeThreads).front();
+        assert(!activeThreads->empty());
+        int tid = activeThreads->front();
 
         if (commitStatus[tid] == Running ||
             commitStatus[tid] == Idle ||
@@ -1382,9 +1390,10 @@ DefaultCommit<Impl>::oldestReady()
     unsigned oldest = 0;
     bool first = true;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (!rob->isEmpty(tid) &&
diff --git a/src/cpu/o3/cpu.cc b/src/cpu/o3/cpu.cc
index 7c8970299..66c75a12d 100644
--- a/src/cpu/o3/cpu.cc
+++ b/src/cpu/o3/cpu.cc
@@ -117,17 +117,18 @@ FullO3CPU<Impl>::ActivateThreadEvent::description()
 
 template <class Impl>
 FullO3CPU<Impl>::DeallocateContextEvent::DeallocateContextEvent()
-    : Event(&mainEventQueue, CPU_Tick_Pri)
+    : Event(&mainEventQueue, CPU_Tick_Pri), tid(0), remove(false), cpu(NULL)
 {
 }
 
 template <class Impl>
 void
 FullO3CPU<Impl>::DeallocateContextEvent::init(int thread_num,
-                                           FullO3CPU<Impl> *thread_cpu)
+                                              FullO3CPU<Impl> *thread_cpu)
 {
     tid = thread_num;
     cpu = thread_cpu;
+    remove = false;
 }
 
 template <class Impl>
@@ -610,7 +611,8 @@ FullO3CPU<Impl>::suspendContext(int tid)
     DPRINTF(O3CPU,"[tid: %i]: Suspending Thread Context.\n", tid);
     bool deallocated = deallocateContext(tid, false, 1);
     // If this was the last thread then unschedule the tick event.
-    if ((activeThreads.size() == 1 && !deallocated) || activeThreads.size() == 0)
+    if (activeThreads.size() == 1 && !deallocated ||
+        activeThreads.size() == 0)
         unscheduleTickEvent();
     _status = Idle;
 }
diff --git a/src/cpu/o3/decode_impl.hh b/src/cpu/o3/decode_impl.hh
index bfb2cd6dc..79a0bfdbf 100644
--- a/src/cpu/o3/decode_impl.hh
+++ b/src/cpu/o3/decode_impl.hh
@@ -428,10 +428,12 @@ template<class Impl>
 bool
 DefaultDecode<Impl>::skidsEmpty()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
-        if (!skidBuffer[*threads++].empty())
+    while (threads != end) {
+        unsigned tid = *threads++;
+        if (!skidBuffer[tid].empty())
             return false;
     }
 
@@ -444,11 +446,10 @@ DefaultDecode<Impl>::updateStatus()
 {
     bool any_unblocking = false;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
-
-    threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (decodeStatus[tid] == Unblocking) {
@@ -601,13 +602,14 @@ DefaultDecode<Impl>::tick()
 
     toRenameIndex = 0;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
     sortInsts();
 
     //Check stall and squash signals.
-    while (threads != (*activeThreads).end()) {
-    unsigned tid = *threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
 
         DPRINTF(Decode,"Processing [tid:%i]\n",tid);
         status_change =  checkSignalsAndUpdate(tid) || status_change;
diff --git a/src/cpu/o3/fetch_impl.hh b/src/cpu/o3/fetch_impl.hh
index 79e723fcd..90d3868a5 100644
--- a/src/cpu/o3/fetch_impl.hh
+++ b/src/cpu/o3/fetch_impl.hh
@@ -727,10 +727,10 @@ typename DefaultFetch<Impl>::FetchStatus
 DefaultFetch<Impl>::updateFetchStatus()
 {
     //Check Running
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
-
-    while (threads != (*activeThreads).end()) {
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (fetchStatus[tid] == Running ||
@@ -785,12 +785,13 @@ template <class Impl>
 void
 DefaultFetch<Impl>::tick()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
     bool status_change = false;
 
     wroteToTimeBuffer = false;
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         // Check the signals for each thread to determine the proper status
@@ -1313,7 +1314,9 @@ DefaultFetch<Impl>::getFetchingThread(FetchPriority &fetch_priority)
             return -1;
         }
     } else {
-        int tid = *((*activeThreads).begin());
+        std::list<unsigned>::iterator thread = activeThreads->begin();
+        assert(thread != activeThreads->end());
+        int tid = *thread;
 
         if (fetchStatus[tid] == Running ||
             fetchStatus[tid] == IcacheAccessComplete ||
@@ -1363,9 +1366,10 @@ DefaultFetch<Impl>::iqCount()
 {
     std::priority_queue<unsigned> PQ;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         PQ.push(fromIEW->iewInfo[tid].iqCount);
@@ -1393,10 +1397,10 @@ DefaultFetch<Impl>::lsqCount()
 {
     std::priority_queue<unsigned> PQ;
 
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
-
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         PQ.push(fromIEW->iewInfo[tid].ldstqCount);
@@ -1422,7 +1426,10 @@ template<class Impl>
 int
 DefaultFetch<Impl>::branchCount()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator thread = activeThreads->begin();
+    assert(thread != activeThreads->end());
+    unsigned tid = *thread;
+
     panic("Branch Count Fetch policy unimplemented\n");
-    return *threads;
+    return 0 * tid;
 }
diff --git a/src/cpu/o3/iew_impl.hh b/src/cpu/o3/iew_impl.hh
index 63b0d45f8..f24eaf2c4 100644
--- a/src/cpu/o3/iew_impl.hh
+++ b/src/cpu/o3/iew_impl.hh
@@ -695,10 +695,12 @@ DefaultIEW<Impl>::skidCount()
 {
     int max=0;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
-        unsigned thread_count = skidBuffer[*threads++].size();
+    while (threads != end) {
+        unsigned tid = *threads++;
+        unsigned thread_count = skidBuffer[tid].size();
         if (max < thread_count)
             max = thread_count;
     }
@@ -710,10 +712,13 @@ template<class Impl>
 bool
 DefaultIEW<Impl>::skidsEmpty()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (threads != (*activeThreads).end()) {
-        if (!skidBuffer[*threads++].empty())
+        if (!skidBuffer[tid].empty())
             return false;
     }
 
@@ -726,11 +731,10 @@ DefaultIEW<Impl>::updateStatus()
 {
     bool any_unblocking = false;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    threads = (*activeThreads).begin();
-
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (dispatchStatus[tid] == Unblocking) {
@@ -1144,13 +1148,11 @@ DefaultIEW<Impl>::dispatchInsts(unsigned tid)
             }
 
             toRename->iewInfo[tid].dispatchedToLSQ++;
-#if FULL_SYSTEM
         } else if (inst->isMemBarrier() || inst->isWriteBarrier()) {
             // Same as non-speculative stores.
             inst->setCanCommit();
             instQueue.insertBarrier(inst);
             add_to_iq = false;
-#endif
         } else if (inst->isNonSpeculative()) {
             DPRINTF(IEW, "[tid:%i]: Issue: Nonspeculative instruction "
                     "encountered, skipping.\n", tid);
@@ -1250,9 +1252,10 @@ DefaultIEW<Impl>::executeInsts()
     wbNumInst = 0;
     wbCycle = 0;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
         fetchRedirect[tid] = false;
     }
@@ -1491,11 +1494,12 @@ DefaultIEW<Impl>::tick()
     // Free function units marked as being freed this cycle.
     fuPool->processFreeUnits();
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
     // Check stall and squash signals, dispatch any instructions.
-    while (threads != (*activeThreads).end()) {
-           unsigned tid = *threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
 
         DPRINTF(IEW,"Issue: Processing [tid:%i]\n",tid);
 
@@ -1535,8 +1539,8 @@ DefaultIEW<Impl>::tick()
     // nonspeculative instruction.
     // This is pretty inefficient...
 
-    threads = (*activeThreads).begin();
-    while (threads != (*activeThreads).end()) {
+    threads = activeThreads->begin();
+    while (threads != end) {
         unsigned tid = (*threads++);
 
         DPRINTF(IEW,"Processing [tid:%i]\n",tid);
diff --git a/src/cpu/o3/inst_queue_impl.hh b/src/cpu/o3/inst_queue_impl.hh
index 6edb528a9..98b8fa900 100644
--- a/src/cpu/o3/inst_queue_impl.hh
+++ b/src/cpu/o3/inst_queue_impl.hh
@@ -426,16 +426,18 @@ void
 InstructionQueue<Impl>::resetEntries()
 {
     if (iqPolicy != Dynamic || numThreads > 1) {
-        int active_threads = (*activeThreads).size();
+        int active_threads = activeThreads->size();
 
-        std::list<unsigned>::iterator threads  = (*activeThreads).begin();
-        std::list<unsigned>::iterator list_end = (*activeThreads).end();
+        std::list<unsigned>::iterator threads = activeThreads->begin();
+        std::list<unsigned>::iterator end = activeThreads->end();
+
+        while (threads != end) {
+            unsigned tid = *threads++;
 
-        while (threads != list_end) {
             if (iqPolicy == Partitioned) {
-                maxEntries[*threads++] = numEntries / active_threads;
+                maxEntries[tid] = numEntries / active_threads;
             } else if(iqPolicy == Threshold && active_threads == 1) {
-                maxEntries[*threads++] = numEntries;
+                maxEntries[tid] = numEntries;
             }
         }
     }
diff --git a/src/cpu/o3/lsq_impl.hh b/src/cpu/o3/lsq_impl.hh
index 6758e51c8..fb738f7c9 100644
--- a/src/cpu/o3/lsq_impl.hh
+++ b/src/cpu/o3/lsq_impl.hh
@@ -244,10 +244,7 @@ void
 LSQ<Impl>::resetEntries()
 {
     if (lsqPolicy != Dynamic || numThreads > 1) {
-        int active_threads = (*activeThreads).size();
-
-        std::list<unsigned>::iterator threads  = (*activeThreads).begin();
-        std::list<unsigned>::iterator list_end = (*activeThreads).end();
+        int active_threads = activeThreads->size();
 
         int maxEntries;
 
@@ -259,8 +256,13 @@ LSQ<Impl>::resetEntries()
             maxEntries = LQEntries;
         }
 
-        while (threads != list_end) {
-            resizeEntries(maxEntries,*threads++);
+        std::list<unsigned>::iterator threads  = activeThreads->begin();
+        std::list<unsigned>::iterator end = activeThreads->end();
+
+        while (threads != end) {
+            unsigned tid = *threads++;
+
+            resizeEntries(maxEntries, tid);
         }
     }
 }
@@ -285,10 +287,11 @@ template<class Impl>
 void
 LSQ<Impl>::tick()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
 
         thread[tid].tick();
     }
@@ -334,10 +337,11 @@ template<class Impl>
 void
 LSQ<Impl>::writebackStores()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
 
         if (numStoresToWB(tid) > 0) {
             DPRINTF(Writeback,"[tid:%i] Writing back stores. %i stores "
@@ -353,10 +357,12 @@ bool
 LSQ<Impl>::violation()
 {
     /* Answers: Does Anybody Have a Violation?*/
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         if (thread[tid].violation())
             return true;
     }
@@ -370,10 +376,12 @@ LSQ<Impl>::getCount()
 {
     unsigned total = 0;
 
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         total += getCount(tid);
     }
 
@@ -386,10 +394,12 @@ LSQ<Impl>::numLoads()
 {
     unsigned total = 0;
 
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         total += numLoads(tid);
     }
 
@@ -402,10 +412,12 @@ LSQ<Impl>::numStores()
 {
     unsigned total = 0;
 
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         total += thread[tid].numStores();
     }
 
@@ -418,10 +430,12 @@ LSQ<Impl>::numLoadsReady()
 {
     unsigned total = 0;
 
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         total += thread[tid].numLoadsReady();
     }
 
@@ -434,10 +448,12 @@ LSQ<Impl>::numFreeEntries()
 {
     unsigned total = 0;
 
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         total += thread[tid].numFreeEntries();
     }
 
@@ -448,7 +464,7 @@ template<class Impl>
 unsigned
 LSQ<Impl>::numFreeEntries(unsigned tid)
 {
-    //if( lsqPolicy == Dynamic )
+    //if (lsqPolicy == Dynamic)
     //return numFreeEntries();
     //else
         return thread[tid].numFreeEntries();
@@ -458,11 +474,13 @@ template<class Impl>
 bool
 LSQ<Impl>::isFull()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
-        if (! (thread[tid].lqFull() || thread[tid].sqFull()) )
+        if (!(thread[tid].lqFull() || thread[tid].sqFull()))
             return false;
     }
 
@@ -475,7 +493,7 @@ LSQ<Impl>::isFull(unsigned tid)
 {
     //@todo: Change to Calculate All Entries for
     //Dynamic Policy
-    if( lsqPolicy == Dynamic )
+    if (lsqPolicy == Dynamic)
         return isFull();
     else
         return thread[tid].lqFull() || thread[tid].sqFull();
@@ -485,10 +503,12 @@ template<class Impl>
 bool
 LSQ<Impl>::lqFull()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         if (!thread[tid].lqFull())
             return false;
     }
@@ -502,7 +522,7 @@ LSQ<Impl>::lqFull(unsigned tid)
 {
     //@todo: Change to Calculate All Entries for
     //Dynamic Policy
-    if( lsqPolicy == Dynamic )
+    if (lsqPolicy == Dynamic)
         return lqFull();
     else
         return thread[tid].lqFull();
@@ -512,10 +532,12 @@ template<class Impl>
 bool
 LSQ<Impl>::sqFull()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         if (!sqFull(tid))
             return false;
     }
@@ -529,7 +551,7 @@ LSQ<Impl>::sqFull(unsigned tid)
 {
      //@todo: Change to Calculate All Entries for
     //Dynamic Policy
-    if( lsqPolicy == Dynamic )
+    if (lsqPolicy == Dynamic)
         return sqFull();
     else
         return thread[tid].sqFull();
@@ -539,10 +561,12 @@ template<class Impl>
 bool
 LSQ<Impl>::isStalled()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         if (!thread[tid].isStalled())
             return false;
     }
@@ -554,7 +578,7 @@ template<class Impl>
 bool
 LSQ<Impl>::isStalled(unsigned tid)
 {
-    if( lsqPolicy == Dynamic )
+    if (lsqPolicy == Dynamic)
         return isStalled();
     else
         return thread[tid].isStalled();
@@ -564,13 +588,15 @@ template<class Impl>
 bool
 LSQ<Impl>::hasStoresToWB()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    if ((*activeThreads).empty())
+    if (threads == end)
         return false;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
+
         if (!hasStoresToWB(tid))
             return false;
     }
@@ -582,10 +608,12 @@ template<class Impl>
 bool
 LSQ<Impl>::willWB()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         if (!willWB(tid))
             return false;
     }
@@ -597,10 +625,12 @@ template<class Impl>
 void
 LSQ<Impl>::dumpInsts()
 {
-    std::list<unsigned>::iterator active_threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
+
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-    while (active_threads != (*activeThreads).end()) {
-        unsigned tid = *active_threads++;
         thread[tid].dumpInsts();
     }
 }
diff --git a/src/cpu/o3/lsq_unit.hh b/src/cpu/o3/lsq_unit.hh
index 0318175c3..9c7eb7780 100644
--- a/src/cpu/o3/lsq_unit.hh
+++ b/src/cpu/o3/lsq_unit.hh
@@ -509,7 +509,6 @@ LSQUnit<Impl>::read(Request *req, T &data, int load_idx)
             "storeHead: %i addr: %#x\n",
             load_idx, store_idx, storeHead, req->getPaddr());
 
-#if FULL_SYSTEM
     if (req->isLocked()) {
         // Disable recording the result temporarily.  Writing to misc
         // regs normally updates the result, but this is not the
@@ -518,7 +517,6 @@ LSQUnit<Impl>::read(Request *req, T &data, int load_idx)
         TheISA::handleLockedRead(load_inst.get(), req);
         load_inst->recordResult = true;
     }
-#endif
 
     while (store_idx != -1) {
         // End once we've reached the top of the LSQ
diff --git a/src/cpu/o3/rename_impl.hh b/src/cpu/o3/rename_impl.hh
index 7a7234965..e303f1cee 100644
--- a/src/cpu/o3/rename_impl.hh
+++ b/src/cpu/o3/rename_impl.hh
@@ -429,10 +429,11 @@ DefaultRename<Impl>::tick()
 
     sortInsts();
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
     // Check stall and squash signals.
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         DPRINTF(Rename, "Processing [tid:%i]\n", tid);
@@ -451,9 +452,9 @@ DefaultRename<Impl>::tick()
         cpu->activityThisCycle();
     }
 
-    threads = (*activeThreads).begin();
+    threads = activeThreads->begin();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         // If we committed this cycle then doneSeqNum will be > 0
@@ -805,10 +806,13 @@ template<class Impl>
 bool
 DefaultRename<Impl>::skidsEmpty()
 {
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
-        if (!skidBuffer[*threads++].empty())
+    while (threads != end) {
+        unsigned tid = *threads++;
+
+        if (!skidBuffer[tid].empty())
             return false;
     }
 
@@ -821,11 +825,10 @@ DefaultRename<Impl>::updateStatus()
 {
     bool any_unblocking = false;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
-
-    threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (renameStatus[tid] == Unblocking) {
diff --git a/src/cpu/o3/rename_map.cc b/src/cpu/o3/rename_map.cc
index befbc3e8a..620daf691 100644
--- a/src/cpu/o3/rename_map.cc
+++ b/src/cpu/o3/rename_map.cc
@@ -180,6 +180,8 @@ SimpleRenameMap::rename(RegIndex arch_reg)
         // Subtract off the base offset for miscellaneous registers.
         arch_reg = arch_reg - numLogicalRegs;
 
+        DPRINTF(Rename, "Renamed misc reg %d\n", arch_reg);
+
         // No renaming happens to the misc. registers.  They are
         // simply the registers that come after all the physical
         // registers; thus take the base architected register and add
@@ -194,6 +196,9 @@ SimpleRenameMap::rename(RegIndex arch_reg)
         assert(renamed_reg < numPhysicalRegs + numMiscRegs);
     }
 
+    DPRINTF(Rename, "Renamed reg %d to physical reg %d old mapping was %d\n",
+            arch_reg, renamed_reg, prev_reg);
+
     return RenameInfo(renamed_reg, prev_reg);
 }
 
diff --git a/src/cpu/o3/rob_impl.hh b/src/cpu/o3/rob_impl.hh
index fab114a74..fde636754 100644
--- a/src/cpu/o3/rob_impl.hh
+++ b/src/cpu/o3/rob_impl.hh
@@ -155,16 +155,18 @@ void
 ROB<Impl>::resetEntries()
 {
     if (robPolicy != Dynamic || numThreads > 1) {
-        int active_threads = (*activeThreads).size();
+        int active_threads = activeThreads->size();
 
-        std::list<unsigned>::iterator threads  = (*activeThreads).begin();
-        std::list<unsigned>::iterator list_end = (*activeThreads).end();
+        std::list<unsigned>::iterator threads = activeThreads->begin();
+        std::list<unsigned>::iterator end = activeThreads->end();
+
+        while (threads != end) {
+            unsigned tid = *threads++;
 
-        while (threads != list_end) {
             if (robPolicy == Partitioned) {
-                maxEntries[*threads++] = numEntries / active_threads;
+                maxEntries[tid] = numEntries / active_threads;
             } else if (robPolicy == Threshold && active_threads == 1) {
-                maxEntries[*threads++] = numEntries;
+                maxEntries[tid] = numEntries;
             }
         }
     }
@@ -318,9 +320,10 @@ bool
 ROB<Impl>::canCommit()
 {
     //@todo: set ActiveThreads through ROB or CPU
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (isHeadReady(tid)) {
@@ -432,22 +435,23 @@ ROB<Impl>::updateHead()
     bool first_valid = true;
 
     // @todo: set ActiveThreads through ROB or CPU
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
-        unsigned thread_num = *threads++;
+    while (threads != end) {
+        unsigned tid = *threads++;
 
-        if (instList[thread_num].empty())
+        if (instList[tid].empty())
             continue;
 
         if (first_valid) {
-            head = instList[thread_num].begin();
+            head = instList[tid].begin();
             lowest_num = (*head)->seqNum;
             first_valid = false;
             continue;
         }
 
-        InstIt head_thread = instList[thread_num].begin();
+        InstIt head_thread = instList[tid].begin();
 
         DynInstPtr head_inst = (*head_thread);
 
@@ -472,9 +476,10 @@ ROB<Impl>::updateTail()
     tail = instList[0].end();
     bool first_valid = true;
 
-    std::list<unsigned>::iterator threads = (*activeThreads).begin();
+    std::list<unsigned>::iterator threads = activeThreads->begin();
+    std::list<unsigned>::iterator end = activeThreads->end();
 
-    while (threads != (*activeThreads).end()) {
+    while (threads != end) {
         unsigned tid = *threads++;
 
         if (instList[tid].empty()) {
diff --git a/src/cpu/ozone/inst_queue_impl.hh b/src/cpu/ozone/inst_queue_impl.hh
index 32a940241..84f2b2a19 100644
--- a/src/cpu/ozone/inst_queue_impl.hh
+++ b/src/cpu/ozone/inst_queue_impl.hh
@@ -342,16 +342,18 @@ void
 InstQueue<Impl>::resetEntries()
 {
     if (iqPolicy != Dynamic || numThreads > 1) {
-        int active_threads = (*activeThreads).size();
+        int active_threads = activeThreads->size();
 
-        list<unsigned>::iterator threads  = (*activeThreads).begin();
-        list<unsigned>::iterator list_end = (*activeThreads).end();
+        std::list<unsigned>::iterator threads = activeThreads->begin();
+        std::list<unsigned>::iterator end = activeThreads->end();
+
+        while (threads != end) {
+            unsigned tid = *threads++;
 
-        while (threads != list_end) {
             if (iqPolicy == Partitioned) {
-                maxEntries[*threads++] = numEntries / active_threads;
-            } else if(iqPolicy == Threshold && active_threads == 1) {
-                maxEntries[*threads++] = numEntries;
+                maxEntries[tid] = numEntries / active_threads;
+            } else if (iqPolicy == Threshold && active_threads == 1) {
+                maxEntries[tid] = numEntries;
             }
         }
     }
diff --git a/src/dev/alpha/tsunami_cchip.cc b/src/dev/alpha/tsunami_cchip.cc
index eb51d4e49..15c47984b 100644
--- a/src/dev/alpha/tsunami_cchip.cc
+++ b/src/dev/alpha/tsunami_cchip.cc
@@ -88,6 +88,8 @@ TsunamiCChip::read(PacketPtr pkt)
     switch (pkt->getSize()) {
 
       case sizeof(uint64_t):
+          pkt->set<uint64_t>(0);
+
           if (daddr & TSDEV_CC_BDIMS)
           {
               pkt->set(dim[(daddr >> 4) & 0x3F]);
diff --git a/src/mem/cache/base_cache.hh b/src/mem/cache/base_cache.hh
index a7f035dce..c10d98e8e 100644
--- a/src/mem/cache/base_cache.hh
+++ b/src/mem/cache/base_cache.hh
@@ -692,6 +692,10 @@ class BaseCache : public MemObject
         }
         return true;
     }
+
+    virtual bool inCache(Addr addr) = 0;
+
+    virtual bool inMissQueue(Addr addr) = 0;
 };
 
 #endif //__BASE_CACHE_HH__
diff --git a/src/mem/cache/cache.cc b/src/mem/cache/cache.cc
index 29ca09060..cb4e7f62e 100644
--- a/src/mem/cache/cache.cc
+++ b/src/mem/cache/cache.cc
@@ -38,8 +38,6 @@
 
 #include "mem/config/cache.hh"
 
-#include "mem/cache/tags/cache_tags.hh"
-
 #if defined(USE_CACHE_LRU)
 #include "mem/cache/tags/lru.hh"
 #endif
@@ -73,28 +71,28 @@
 
 
 #if defined(USE_CACHE_FALRU)
-template class Cache<CacheTags<FALRU>, SimpleCoherence>;
-template class Cache<CacheTags<FALRU>, UniCoherence>;
+template class Cache<FALRU, SimpleCoherence>;
+template class Cache<FALRU, UniCoherence>;
 #endif
 
 #if defined(USE_CACHE_IIC)
-template class Cache<CacheTags<IIC>, SimpleCoherence>;
-template class Cache<CacheTags<IIC>, UniCoherence>;
+template class Cache<IIC, SimpleCoherence>;
+template class Cache<IIC, UniCoherence>;
 #endif
 
 #if defined(USE_CACHE_LRU)
-template class Cache<CacheTags<LRU>, SimpleCoherence>;
-template class Cache<CacheTags<LRU>, UniCoherence>;
+template class Cache<LRU, SimpleCoherence>;
+template class Cache<LRU, UniCoherence>;
 #endif
 
 #if defined(USE_CACHE_SPLIT)
-template class Cache<CacheTags<Split>, SimpleCoherence>;
-template class Cache<CacheTags<Split>, UniCoherence>;
+template class Cache<Split, SimpleCoherence>;
+template class Cache<Split, UniCoherence>;
 #endif
 
 #if defined(USE_CACHE_SPLIT_LIFO)
-template class Cache<CacheTags<SplitLIFO>, SimpleCoherence>;
-template class Cache<CacheTags<SplitLIFO>, UniCoherence>;
+template class Cache<SplitLIFO, SimpleCoherence>;
+template class Cache<SplitLIFO, UniCoherence>;
 #endif
 
 #endif //DOXYGEN_SHOULD_SKIP_THIS
diff --git a/src/mem/cache/cache.hh b/src/mem/cache/cache.hh
index 097b0f513..26dab2179 100644
--- a/src/mem/cache/cache.hh
+++ b/src/mem/cache/cache.hh
@@ -38,16 +38,17 @@
 #ifndef __CACHE_HH__
 #define __CACHE_HH__
 
+#include "base/compression/base.hh"
 #include "base/misc.hh" // fatal, panic, and warn
 #include "cpu/smt.hh" // SMT_MAX_THREADS
 
 #include "mem/cache/base_cache.hh"
+#include "mem/cache/cache_blk.hh"
 #include "mem/cache/miss/miss_buffer.hh"
-#include "mem/cache/prefetch/prefetcher.hh"
 
 //Forward decleration
 class MSHR;
-
+class BasePrefetcher;
 
 /**
  * A template-policy based cache. The behavior of the cache can be altered by
@@ -62,6 +63,8 @@ class Cache : public BaseCache
   public:
     /** Define the type of cache block to use. */
     typedef typename TagStore::BlkType BlkType;
+    /** A typedef for a list of BlkType pointers. */
+    typedef typename TagStore::BlkList BlkList;
 
     bool prefetchAccess;
 
@@ -115,7 +118,7 @@ class Cache : public BaseCache
     Coherence *coherence;
 
     /** Prefetcher */
-    Prefetcher<TagStore> *prefetcher;
+    BasePrefetcher *prefetcher;
 
     /**
      * The clock ratio of the outgoing bus.
@@ -141,6 +144,141 @@ class Cache : public BaseCache
     PacketPtr invalidatePkt;
     Request *invalidateReq;
 
+    /**
+     * Policy class for performing compression.
+     */
+    CompressionAlgorithm *compressionAlg;
+
+    /**
+     * The block size of this cache. Set to value in the Tags object.
+     */
+    const int16_t blkSize;
+
+    /**
+     * Can this cache should allocate a block on a line-sized write miss.
+     */
+    const bool doFastWrites;
+
+    const bool prefetchMiss;
+
+    /**
+     * Can the data can be stored in a compressed form.
+     */
+    const bool storeCompressed;
+
+    /**
+     * Do we need to compress blocks on writebacks (i.e. because
+     * writeback bus is compressed but storage is not)?
+     */
+    const bool compressOnWriteback;
+
+    /**
+     * The latency of a compression operation.
+     */
+    const int16_t compLatency;
+
+    /**
+     * Should we use an adaptive compression scheme.
+     */
+    const bool adaptiveCompression;
+
+    /**
+     * Do writebacks need to be compressed (i.e. because writeback bus
+     * is compressed), whether or not they're already compressed for
+     * storage.
+     */
+    const bool writebackCompressed;
+
+    /**
+     * Compare the internal block data to the fast access block data.
+     * @param blk The cache block to check.
+     * @return True if the data is the same.
+     */
+    bool verifyData(BlkType *blk);
+
+    /**
+     * Update the internal data of the block. The data to write is assumed to
+     * be in the fast access data.
+     * @param blk The block with the data to update.
+     * @param writebacks A list to store any generated writebacks.
+     * @param compress_block True if we should compress this block
+     */
+    void updateData(BlkType *blk, PacketList &writebacks, bool compress_block);
+
+    /**
+     * Handle a replacement for the given request.
+     * @param blk A pointer to the block, usually NULL
+     * @param pkt The memory request to satisfy.
+     * @param new_state The new state of the block.
+     * @param writebacks A list to store any generated writebacks.
+     */
+    BlkType* doReplacement(BlkType *blk, PacketPtr &pkt,
+                           CacheBlk::State new_state, PacketList &writebacks);
+
+    /**
+     * Does all the processing necessary to perform the provided request.
+     * @param pkt The memory request to perform.
+     * @param lat The latency of the access.
+     * @param writebacks List for any writebacks that need to be performed.
+     * @param update True if the replacement data should be updated.
+     * @return Pointer to the cache block touched by the request. NULL if it
+     * was a miss.
+     */
+    BlkType* handleAccess(PacketPtr &pkt, int & lat,
+                          PacketList & writebacks, bool update = true);
+
+    /**
+     * Populates a cache block and handles all outstanding requests for the
+     * satisfied fill request. This version takes an MSHR pointer and uses its
+     * request to fill the cache block, while repsonding to its targets.
+     * @param blk The cache block if it already exists.
+     * @param mshr The MSHR that contains the fill data and targets to satisfy.
+     * @param new_state The state of the new cache block.
+     * @param writebacks List for any writebacks that need to be performed.
+     * @return Pointer to the new cache block.
+     */
+    BlkType* handleFill(BlkType *blk, MSHR * mshr, CacheBlk::State new_state,
+                        PacketList & writebacks, PacketPtr pkt);
+
+    /**
+     * Populates a cache block and handles all outstanding requests for the
+     * satisfied fill request. This version takes two memory requests. One
+     * contains the fill data, the other is an optional target to satisfy.
+     * Used for Cache::probe.
+     * @param blk The cache block if it already exists.
+     * @param pkt The memory request with the fill data.
+     * @param new_state The state of the new cache block.
+     * @param writebacks List for any writebacks that need to be performed.
+     * @param target The memory request to perform after the fill.
+     * @return Pointer to the new cache block.
+     */
+    BlkType* handleFill(BlkType *blk, PacketPtr &pkt,
+                        CacheBlk::State new_state,
+                        PacketList & writebacks, PacketPtr target = NULL);
+
+    /**
+     * Sets the blk to the new state and handles the given request.
+     * @param blk The cache block being snooped.
+     * @param new_state The new coherence state for the block.
+     * @param pkt The request to satisfy
+     */
+    void handleSnoop(BlkType *blk, CacheBlk::State new_state,
+                     PacketPtr &pkt);
+
+    /**
+     * Sets the blk to the new state.
+     * @param blk The cache block being snooped.
+     * @param new_state The new coherence state for the block.
+     */
+    void handleSnoop(BlkType *blk, CacheBlk::State new_state);
+
+    /**
+     * Create a writeback request for the given block.
+     * @param blk The block to writeback.
+     * @return The writeback request for the block.
+     */
+    PacketPtr writebackBlk(BlkType *blk);
+
   public:
 
     class Params
@@ -150,18 +288,41 @@ class Cache : public BaseCache
         MissBuffer *missQueue;
         Coherence *coherence;
         BaseCache::Params baseParams;
-        Prefetcher<TagStore> *prefetcher;
+        BasePrefetcher*prefetcher;
         bool prefetchAccess;
         int hitLatency;
+        CompressionAlgorithm *compressionAlg;
+        const int16_t blkSize;
+        const bool doFastWrites;
+        const bool prefetchMiss;
+        const bool storeCompressed;
+        const bool compressOnWriteback;
+        const int16_t compLatency;
+        const bool adaptiveCompression;
+        const bool writebackCompressed;
 
         Params(TagStore *_tags, MissBuffer *mq, Coherence *coh,
                BaseCache::Params params,
-               Prefetcher<TagStore> *_prefetcher,
-               bool prefetch_access, int hit_latency)
+               BasePrefetcher *_prefetcher,
+               bool prefetch_access, int hit_latency,
+               bool do_fast_writes,
+               bool store_compressed, bool adaptive_compression,
+               bool writeback_compressed,
+               CompressionAlgorithm *_compressionAlg, int comp_latency,
+               bool prefetch_miss)
             : tags(_tags), missQueue(mq), coherence(coh),
               baseParams(params),
               prefetcher(_prefetcher), prefetchAccess(prefetch_access),
-              hitLatency(hit_latency)
+              hitLatency(hit_latency),
+              compressionAlg(_compressionAlg),
+              blkSize(_tags->getBlockSize()),
+              doFastWrites(do_fast_writes),
+              prefetchMiss(prefetch_miss),
+              storeCompressed(store_compressed),
+              compressOnWriteback(!store_compressed && writeback_compressed),
+              compLatency(comp_latency),
+              adaptiveCompression(adaptive_compression),
+              writebackCompressed(writeback_compressed)
         {
         }
     };
@@ -223,14 +384,6 @@ class Cache : public BaseCache
     void snoopResponse(PacketPtr &pkt);
 
     /**
-     * Invalidates the block containing address if found.
-     * @param addr The address to look for.
-     * @param asid The address space ID of the address.
-     * @todo Is this function necessary?
-     */
-    void invalidateBlk(Addr addr);
-
-    /**
      * Squash all requests associated with specified thread.
      * intended for use by I-cache.
      * @param threadNum The thread to squash.
@@ -273,6 +426,14 @@ class Cache : public BaseCache
      * @return The estimated completion time.
      */
     Tick snoopProbe(PacketPtr &pkt);
+
+    bool inCache(Addr addr) {
+        return (tags->findBlock(addr) != 0);
+    }
+
+    bool inMissQueue(Addr addr) {
+        return (missQueue->findMSHR(addr) != 0);
+    }
 };
 
 #endif // __CACHE_HH__
diff --git a/src/mem/cache/cache_builder.cc b/src/mem/cache/cache_builder.cc
index 4b1b19718..318b57d50 100644
--- a/src/mem/cache/cache_builder.cc
+++ b/src/mem/cache/cache_builder.cc
@@ -70,9 +70,6 @@
 #include "base/compression/null_compression.hh"
 #include "base/compression/lzss_compression.hh"
 
-// CacheTags Templates
-#include "mem/cache/tags/cache_tags.hh"
-
 // MissQueue Templates
 #include "mem/cache/miss/miss_queue.hh"
 #include "mem/cache/miss/blocking_buffer.hh"
@@ -108,8 +105,6 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(BaseCache)
     Param<int> tgts_per_mshr;
     Param<int> write_buffers;
     Param<bool> prioritizeRequests;
-//    SimObjectParam<Bus *> in_bus;
-//    SimObjectParam<Bus *> out_bus;
     SimObjectParam<CoherenceProtocol *> protocol;
     Param<Addr> trace_addr;
     Param<int> hash_delay;
@@ -122,7 +117,6 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(BaseCache)
     Param<int> compression_latency;
     Param<int> subblock_size;
     Param<Counter> max_miss_count;
-//    SimObjectParam<HierParams *> hier;
     VectorParam<Range<Addr> > addr_range;
 //    SimObjectParam<MemTraceWriter *> mem_trace;
     Param<bool> split;
@@ -156,9 +150,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(BaseCache)
     INIT_PARAM_DFLT(write_buffers, "number of write buffers", 8),
     INIT_PARAM_DFLT(prioritizeRequests, "always service demand misses first",
                     false),
-/*    INIT_PARAM_DFLT(in_bus, "incoming bus object", NULL),
-    INIT_PARAM(out_bus, "outgoing bus object"),
-*/
     INIT_PARAM_DFLT(protocol, "coherence protocol to use in the cache", NULL),
     INIT_PARAM_DFLT(trace_addr, "address to trace", 0),
 
@@ -182,10 +173,6 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(BaseCache)
     INIT_PARAM_DFLT(max_miss_count,
                     "The number of misses to handle before calling exit",
                     0),
-/*    INIT_PARAM_DFLT(hier,
-                    "Hierarchy global variables",
-                    &defaultHierParams),
-*/
     INIT_PARAM_DFLT(addr_range, "The address range in bytes",
                     vector<Range<Addr> >(1,RangeIn((Addr)0, MaxAddr))),
 //    INIT_PARAM_DFLT(mem_trace, "Memory trace to write accesses to", NULL),
@@ -208,47 +195,47 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(BaseCache)
 END_INIT_SIM_OBJECT_PARAMS(BaseCache)
 
 
-#define BUILD_CACHE(t, c) do {					\
-        Prefetcher<CacheTags<t> > *pf; \
-        if (pf_policy == "tagged") {      \
-             BUILD_TAGGED_PREFETCHER(t); \
-        }            \
-        else if (pf_policy == "stride") {       \
-             BUILD_STRIDED_PREFETCHER(t); \
-        } \
-        else if (pf_policy == "ghb") {       \
-             BUILD_GHB_PREFETCHER(t); \
-        } \
-        else { \
-             BUILD_NULL_PREFETCHER(t); \
-        } \
-        Cache<CacheTags<t>, c>::Params params(tagStore, mq, coh, \
-                                                       base_params, \
-                                                       pf,  \
-                                                       prefetch_access, hit_latency); \
-        Cache<CacheTags<t>, c> *retval =			\
-            new Cache<CacheTags<t>, c>(getInstanceName(), params);		\
-return retval;                                                          \
+#define BUILD_CACHE(TAGS, tags, c)                                      \
+    do {                                                                \
+        BasePrefetcher *pf;                                           \
+        if (pf_policy == "tagged") {                                    \
+            BUILD_TAGGED_PREFETCHER(TAGS);                              \
+        }                                                               \
+        else if (pf_policy == "stride") {                               \
+            BUILD_STRIDED_PREFETCHER(TAGS);                             \
+        }                                                               \
+        else if (pf_policy == "ghb") {                                  \
+            BUILD_GHB_PREFETCHER(TAGS);                                 \
+        }                                                               \
+        else {                                                          \
+            BUILD_NULL_PREFETCHER(TAGS);                                \
+        }                                                               \
+        Cache<TAGS, c>::Params params(tags, mq, coh, base_params,       \
+                                      pf, prefetch_access, hit_latency, \
+                                      true,                             \
+                                      store_compressed,                 \
+                                      adaptive_compression,             \
+                                      compressed_bus,                   \
+                                      compAlg, compression_latency,     \
+                                      prefetch_miss);                   \
+        Cache<TAGS, c> *retval =                                        \
+            new Cache<TAGS, c>(getInstanceName(), params);              \
+        return retval;                                                  \
     } while (0)
 
 #define BUILD_CACHE_PANIC(x) do {			\
         panic("%s not compiled into M5", x);		\
     } while (0)
 
-#define BUILD_COMPRESSED_CACHE(TAGS, tags, c)			\
-    do {								\
-        CompressionAlgorithm *compAlg;					\
-        if (compressed_bus || store_compressed) {			\
-            compAlg = new LZSSCompression();				\
-        } else {							\
-            compAlg = new NullCompression();				\
-        }								\
-        CacheTags<TAGS> *tagStore =					\
-            new CacheTags<TAGS>(tags, compression_latency, true,	\
-                                store_compressed, adaptive_compression,	\
-                                compressed_bus,				\
-                                compAlg, prefetch_miss);		\
-            BUILD_CACHE(TAGS, c);					\
+#define BUILD_COMPRESSED_CACHE(TAGS, tags, c)           \
+    do {                                                \
+        CompressionAlgorithm *compAlg;                  \
+        if (compressed_bus || store_compressed) {       \
+            compAlg = new LZSSCompression();            \
+        } else {                                        \
+            compAlg = new NullCompression();            \
+        }                                               \
+        BUILD_CACHE(TAGS, tags, c);                     \
     } while (0)
 
 #if defined(USE_CACHE_FALRU)
@@ -327,55 +314,55 @@ return retval;                                                          \
     } while (0)
 
 #if defined(USE_TAGGED)
-#define BUILD_TAGGED_PREFETCHER(t) pf = new   \
-                TaggedPrefetcher<CacheTags<t> >(prefetcher_size, \
-                                                        !prefetch_past_page, \
-                                                        prefetch_serial_squash, \
-                                                        prefetch_cache_check_push, \
-                                                        prefetch_data_accesses_only, \
-                                                        prefetch_latency, \
-                                                        prefetch_degree)
+#define BUILD_TAGGED_PREFETCHER(t)                              \
+    pf = new TaggedPrefetcher(prefetcher_size,                  \
+                              !prefetch_past_page,              \
+                              prefetch_serial_squash,           \
+                              prefetch_cache_check_push,        \
+                              prefetch_data_accesses_only,      \
+                              prefetch_latency,                 \
+                              prefetch_degree)
 #else
 #define BUILD_TAGGED_PREFETCHER(t) BUILD_CACHE_PANIC("Tagged Prefetcher")
 #endif
 
 #if defined(USE_STRIDED)
-#define BUILD_STRIDED_PREFETCHER(t) pf = new  \
-                StridePrefetcher<CacheTags<t> >(prefetcher_size, \
-                                                        !prefetch_past_page, \
-                                                        prefetch_serial_squash, \
-                                                        prefetch_cache_check_push, \
-                                                        prefetch_data_accesses_only, \
-                                                        prefetch_latency, \
-                                                        prefetch_degree, \
-                                                        prefetch_use_cpu_id)
+#define BUILD_STRIDED_PREFETCHER(t)                             \
+    pf = new StridePrefetcher(prefetcher_size,                  \
+                              !prefetch_past_page,              \
+                              prefetch_serial_squash,           \
+                              prefetch_cache_check_push,        \
+                              prefetch_data_accesses_only,      \
+                              prefetch_latency,                 \
+                              prefetch_degree,                  \
+                              prefetch_use_cpu_id)
 #else
 #define BUILD_STRIDED_PREFETCHER(t) BUILD_CACHE_PANIC("Stride Prefetcher")
 #endif
 
 #if defined(USE_GHB)
-#define BUILD_GHB_PREFETCHER(t) pf = new  \
-                GHBPrefetcher<CacheTags<t> >(prefetcher_size, \
-                                                     !prefetch_past_page, \
-                                                     prefetch_serial_squash, \
-                                                     prefetch_cache_check_push, \
-                                                        prefetch_data_accesses_only, \
-                                                     prefetch_latency, \
-                                                     prefetch_degree, \
-                                                     prefetch_use_cpu_id)
+#define BUILD_GHB_PREFETCHER(t)                         \
+    pf = new GHBPrefetcher(prefetcher_size,             \
+                           !prefetch_past_page,         \
+                           prefetch_serial_squash,      \
+                           prefetch_cache_check_push,   \
+                           prefetch_data_accesses_only, \
+                           prefetch_latency,            \
+                           prefetch_degree,             \
+                           prefetch_use_cpu_id)
 #else
 #define BUILD_GHB_PREFETCHER(t) BUILD_CACHE_PANIC("GHB Prefetcher")
 #endif
 
 #if defined(USE_TAGGED)
-#define BUILD_NULL_PREFETCHER(t) pf = new  \
-                TaggedPrefetcher<CacheTags<t> >(prefetcher_size, \
-                                                        !prefetch_past_page, \
-                                                        prefetch_serial_squash, \
-                                                        prefetch_cache_check_push, \
-                                                        prefetch_data_accesses_only, \
-                                                        prefetch_latency, \
-                                                        prefetch_degree)
+#define BUILD_NULL_PREFETCHER(t)                                \
+    pf = new TaggedPrefetcher(prefetcher_size,                  \
+                              !prefetch_past_page,              \
+                              prefetch_serial_squash,           \
+                              prefetch_cache_check_push,        \
+                              prefetch_data_accesses_only,      \
+                              prefetch_latency,                 \
+                              prefetch_degree)
 #else
 #define BUILD_NULL_PREFETCHER(t) BUILD_CACHE_PANIC("NULL Prefetcher (uses Tagged)")
 #endif
diff --git a/src/mem/cache/cache_impl.hh b/src/mem/cache/cache_impl.hh
index 9f48ff1f3..9c41983fc 100644
--- a/src/mem/cache/cache_impl.hh
+++ b/src/mem/cache/cache_impl.hh
@@ -49,7 +49,7 @@
 #include "mem/cache/cache.hh"
 #include "mem/cache/cache_blk.hh"
 #include "mem/cache/miss/mshr.hh"
-#include "mem/cache/prefetch/prefetcher.hh"
+#include "mem/cache/prefetch/base_prefetcher.hh"
 
 #include "sim/sim_exit.hh" // for SimExitEvent
 
@@ -72,16 +72,22 @@ Cache(const std::string &_name,
       prefetchAccess(params.prefetchAccess),
       tags(params.tags), missQueue(params.missQueue),
       coherence(params.coherence), prefetcher(params.prefetcher),
-      hitLatency(params.hitLatency)
+      hitLatency(params.hitLatency),
+      compressionAlg(params.compressionAlg),
+      blkSize(params.blkSize),
+      doFastWrites(params.doFastWrites),
+      prefetchMiss(params.prefetchMiss),
+      storeCompressed(params.storeCompressed),
+      compressOnWriteback(params.compressOnWriteback),
+      compLatency(params.compLatency),
+      adaptiveCompression(params.adaptiveCompression),
+      writebackCompressed(params.writebackCompressed)
 {
     tags->setCache(this);
-    tags->setPrefetcher(prefetcher);
     missQueue->setCache(this);
     missQueue->setPrefetcher(prefetcher);
     coherence->setCache(this);
     prefetcher->setCache(this);
-    prefetcher->setTags(tags);
-    prefetcher->setBuffer(missQueue);
     invalidateReq = new Request((Addr) NULL, blkSize, 0);
     invalidatePkt = new Packet(invalidateReq, Packet::InvalidateReq, 0);
 }
@@ -98,6 +104,433 @@ Cache<TagStore,Coherence>::regStats()
 }
 
 template<class TagStore, class Coherence>
+typename Cache<TagStore,Coherence>::BlkType*
+Cache<TagStore,Coherence>::handleAccess(PacketPtr &pkt, int & lat,
+                                        PacketList & writebacks, bool update)
+{
+    // Set the block offset here
+    int offset = tags->extractBlkOffset(pkt->getAddr());
+
+    BlkType *blk = NULL;
+    if (update) {
+        blk = tags->findBlock(pkt->getAddr(), lat);
+    } else {
+        blk = tags->findBlock(pkt->getAddr());
+        lat = 0;
+    }
+    if (blk != NULL) {
+
+        if (!update) {
+            if (pkt->isWrite()){
+                assert(offset < blkSize);
+                assert(pkt->getSize() <= blkSize);
+                assert(offset+pkt->getSize() <= blkSize);
+                memcpy(blk->data + offset, pkt->getPtr<uint8_t>(),
+                       pkt->getSize());
+            } else if (!(pkt->flags & SATISFIED)) {
+                pkt->flags |= SATISFIED;
+                pkt->result = Packet::Success;
+                assert(offset < blkSize);
+                assert(pkt->getSize() <= blkSize);
+                assert(offset + pkt->getSize() <=blkSize);
+                memcpy(pkt->getPtr<uint8_t>(), blk->data + offset,
+                       pkt->getSize());
+            }
+            return blk;
+        }
+
+        // Hit
+        if (blk->isPrefetch()) {
+            //Signal that this was a hit under prefetch (no need for
+            //use prefetch (only can get here if true)
+            DPRINTF(HWPrefetch, "Hit a block that was prefetched\n");
+            blk->status &= ~BlkHWPrefetched;
+            if (prefetchMiss) {
+                //If we are using the miss stream, signal the
+                //prefetcher otherwise the access stream would have
+                //already signaled this hit
+                prefetcher->handleMiss(pkt, curTick);
+            }
+        }
+
+        if ((pkt->isWrite() && blk->isWritable()) ||
+            (pkt->isRead() && blk->isValid())) {
+
+            // We are satisfying the request
+            pkt->flags |= SATISFIED;
+
+            if (blk->isCompressed()) {
+                // If the data is compressed, need to increase the latency
+                lat += (compLatency/4);
+            }
+
+            bool write_data = false;
+
+            assert(verifyData(blk));
+
+            assert(offset < blkSize);
+            assert(pkt->getSize() <= blkSize);
+            assert(offset+pkt->getSize() <= blkSize);
+
+            if (pkt->isWrite()) {
+                if (blk->checkWrite(pkt->req)) {
+                    write_data = true;
+                    blk->status |= BlkDirty;
+                    memcpy(blk->data + offset, pkt->getPtr<uint8_t>(),
+                           pkt->getSize());
+                }
+            } else {
+                assert(pkt->isRead());
+                if (pkt->req->isLocked()) {
+                    blk->trackLoadLocked(pkt->req);
+                }
+                memcpy(pkt->getPtr<uint8_t>(), blk->data + offset,
+                       pkt->getSize());
+            }
+
+            if (write_data ||
+                (adaptiveCompression && blk->isCompressed()))
+            {
+                // If we wrote data, need to update the internal block
+                // data.
+                updateData(blk, writebacks,
+                           !(adaptiveCompression &&
+                             blk->isReferenced()));
+            }
+        } else {
+            // permission violation, treat it as a miss
+            blk = NULL;
+        }
+    } else {
+        // complete miss (no matching block)
+        if (pkt->req->isLocked() && pkt->isWrite()) {
+            // miss on store conditional... just give up now
+            pkt->req->setScResult(0);
+            pkt->flags |= SATISFIED;
+        }
+    }
+
+    return blk;
+}
+
+template<class TagStore, class Coherence>
+typename Cache<TagStore,Coherence>::BlkType*
+Cache<TagStore,Coherence>::handleFill(BlkType *blk, PacketPtr &pkt,
+                                      CacheBlk::State new_state,
+                                      PacketList & writebacks,
+                                      PacketPtr target)
+{
+#ifndef NDEBUG
+    BlkType *tmp_blk = tags->findBlock(pkt->getAddr());
+    assert(tmp_blk == blk);
+#endif
+    blk = doReplacement(blk, pkt, new_state, writebacks);
+
+
+    if (pkt->isRead()) {
+        memcpy(blk->data, pkt->getPtr<uint8_t>(), blkSize);
+    }
+
+        blk->whenReady = pkt->finishTime;
+
+    // Respond to target, if any
+    if (target) {
+
+        target->flags |= SATISFIED;
+
+        if (target->cmd == Packet::InvalidateReq) {
+            tags->invalidateBlk(blk);
+            blk = NULL;
+        }
+
+        if (blk && (target->isWrite() ? blk->isWritable() : blk->isValid())) {
+            assert(target->isWrite() || target->isRead());
+            assert(target->getOffset(blkSize) + target->getSize() <= blkSize);
+            if (target->isWrite()) {
+                if (blk->checkWrite(pkt->req)) {
+                    blk->status |= BlkDirty;
+                    memcpy(blk->data + target->getOffset(blkSize),
+                           target->getPtr<uint8_t>(), target->getSize());
+                }
+            } else {
+                if (pkt->req->isLocked()) {
+                    blk->trackLoadLocked(pkt->req);
+                }
+                memcpy(target->getPtr<uint8_t>(),
+                       blk->data + target->getOffset(blkSize),
+                       target->getSize());
+            }
+        }
+    }
+
+    if (blk) {
+        // Need to write the data into the block
+        updateData(blk, writebacks, !adaptiveCompression || true);
+    }
+    return blk;
+}
+
+template<class TagStore, class Coherence>
+typename Cache<TagStore,Coherence>::BlkType*
+Cache<TagStore,Coherence>::handleFill(BlkType *blk, MSHR * mshr,
+                                      CacheBlk::State new_state,
+                                      PacketList & writebacks, PacketPtr pkt)
+{
+/*
+#ifndef NDEBUG
+    BlkType *tmp_blk = findBlock(mshr->pkt->getAddr());
+    assert(tmp_blk == blk);
+#endif
+    PacketPtr pkt = mshr->pkt;*/
+    blk = doReplacement(blk, pkt, new_state, writebacks);
+
+    if (pkt->isRead()) {
+        memcpy(blk->data, pkt->getPtr<uint8_t>(), blkSize);
+    }
+
+    blk->whenReady = pkt->finishTime;
+
+
+    // respond to MSHR targets, if any
+
+    // First offset for critical word first calculations
+    int initial_offset = 0;
+
+    if (mshr->hasTargets()) {
+        initial_offset = mshr->getTarget()->getOffset(blkSize);
+    }
+
+    while (mshr->hasTargets()) {
+        PacketPtr target = mshr->getTarget();
+
+        target->flags |= SATISFIED;
+
+        // How many bytes pass the first request is this one
+        int transfer_offset = target->getOffset(blkSize) - initial_offset;
+        if (transfer_offset < 0) {
+            transfer_offset += blkSize;
+        }
+
+        // If critical word (no offset) return first word time
+        Tick completion_time = tags->getHitLatency() +
+            transfer_offset ? pkt->finishTime : pkt->firstWordTime;
+
+        if (target->cmd == Packet::InvalidateReq) {
+            //Mark the blk as invalid now, if it hasn't been already
+            if (blk) {
+                tags->invalidateBlk(blk);
+                blk = NULL;
+            }
+
+            //Also get rid of the invalidate
+            mshr->popTarget();
+
+            DPRINTF(Cache, "Popping off a Invalidate for addr %x\n",
+                    pkt->getAddr());
+
+            continue;
+        }
+
+        if (blk && (target->isWrite() ? blk->isWritable() : blk->isValid())) {
+            assert(target->isWrite() || target->isRead());
+            assert(target->getOffset(blkSize) + target->getSize() <= blkSize);
+            if (target->isWrite()) {
+                if (blk->checkWrite(pkt->req)) {
+                    blk->status |= BlkDirty;
+                    memcpy(blk->data + target->getOffset(blkSize),
+                           target->getPtr<uint8_t>(), target->getSize());
+                }
+            } else {
+                if (pkt->req->isLocked()) {
+                    blk->trackLoadLocked(pkt->req);
+                }
+                memcpy(target->getPtr<uint8_t>(),
+                       blk->data + target->getOffset(blkSize),
+                       target->getSize());
+            }
+        } else {
+            // Invalid access, need to do another request
+            // can occur if block is invalidated, or not correct
+            // permissions
+//            mshr->pkt = pkt;
+            break;
+        }
+        respondToMiss(target, completion_time);
+        mshr->popTarget();
+    }
+
+    if (blk) {
+        // Need to write the data into the block
+        updateData(blk, writebacks, !adaptiveCompression || true);
+    }
+
+    return blk;
+}
+
+
+template<class TagStore, class Coherence>
+void
+Cache<TagStore,Coherence>::handleSnoop(BlkType *blk,
+                                       CacheBlk::State new_state,
+                                       PacketPtr &pkt)
+{
+    //Must have the block to supply
+    assert(blk);
+    // Can only supply data, and if it hasn't already been supllied
+    assert(pkt->isRead());
+    assert(!(pkt->flags & SATISFIED));
+    pkt->flags |= SATISFIED;
+    Addr offset = pkt->getOffset(blkSize);
+    assert(offset < blkSize);
+    assert(pkt->getSize() <= blkSize);
+    assert(offset + pkt->getSize() <=blkSize);
+    memcpy(pkt->getPtr<uint8_t>(), blk->data + offset, pkt->getSize());
+
+    handleSnoop(blk, new_state);
+}
+
+template<class TagStore, class Coherence>
+void
+Cache<TagStore,Coherence>::handleSnoop(BlkType *blk,
+                                       CacheBlk::State new_state)
+{
+    if (blk && blk->status != new_state) {
+        if ((new_state && BlkValid) == 0) {
+            tags->invalidateBlk(blk);
+        } else {
+            assert(new_state >= 0 && new_state < 128);
+            blk->status = new_state;
+        }
+    }
+}
+
+template<class TagStore, class Coherence>
+PacketPtr
+Cache<TagStore,Coherence>::writebackBlk(BlkType *blk)
+{
+    assert(blk && blk->isValid() && blk->isModified());
+    int data_size = blkSize;
+    data_size = blk->size;
+    if (compressOnWriteback) {
+        // not already compressed
+        // need to compress to ship it
+        assert(data_size == blkSize);
+        uint8_t *tmp_data = new uint8_t[blkSize];
+        data_size = compressionAlg->compress(tmp_data,blk->data,
+                                      data_size);
+        delete [] tmp_data;
+    }
+
+/*    PacketPtr writeback =
+        buildWritebackReq(tags->regenerateBlkAddr(blk->tag, blk->set),
+                          blk->asid, blkSize,
+                          blk->data, data_size);
+*/
+
+    Request *writebackReq =
+        new Request(tags->regenerateBlkAddr(blk->tag, blk->set), blkSize, 0);
+    PacketPtr writeback = new Packet(writebackReq, Packet::Writeback, -1);
+    writeback->allocate();
+    memcpy(writeback->getPtr<uint8_t>(),blk->data,blkSize);
+
+    blk->status &= ~BlkDirty;
+    return writeback;
+}
+
+
+template<class TagStore, class Coherence>
+bool
+Cache<TagStore,Coherence>::verifyData(BlkType *blk)
+{
+    bool retval;
+    // The data stored in the blk
+    uint8_t *blk_data = new uint8_t[blkSize];
+    tags->readData(blk, blk_data);
+    // Pointer for uncompressed data, assumed uncompressed
+    uint8_t *tmp_data = blk_data;
+    // The size of the data being stored, assumed uncompressed
+    int data_size = blkSize;
+
+    // If the block is compressed need to uncompress to access
+    if (blk->isCompressed()){
+        // Allocate new storage for the data
+        tmp_data = new uint8_t[blkSize];
+        data_size = compressionAlg->uncompress(tmp_data,blk_data, blk->size);
+        assert(data_size == blkSize);
+        // Don't need to keep blk_data around
+        delete [] blk_data;
+    } else {
+        assert(blkSize == blk->size);
+    }
+
+    retval = memcmp(tmp_data, blk->data, blkSize) == 0;
+    delete [] tmp_data;
+    return retval;
+}
+
+template<class TagStore, class Coherence>
+void
+Cache<TagStore,Coherence>::updateData(BlkType *blk, PacketList &writebacks,
+                                        bool compress_block)
+{
+    if (storeCompressed && compress_block) {
+        uint8_t *comp_data = new uint8_t[blkSize];
+        int new_size = compressionAlg->compress(comp_data, blk->data, blkSize);
+        if (new_size > (blkSize - tags->getSubBlockSize())){
+            // no benefit to storing it compressed
+            blk->status &= ~BlkCompressed;
+            tags->writeData(blk, blk->data, blkSize,
+                          writebacks);
+        } else {
+            // Store the data compressed
+            blk->status |= BlkCompressed;
+            tags->writeData(blk, comp_data, new_size,
+                          writebacks);
+        }
+        delete [] comp_data;
+    } else {
+        blk->status &= ~BlkCompressed;
+        tags->writeData(blk, blk->data, blkSize, writebacks);
+    }
+}
+
+template<class TagStore, class Coherence>
+typename Cache<TagStore,Coherence>::BlkType*
+Cache<TagStore,Coherence>::doReplacement(BlkType *blk, PacketPtr &pkt,
+                                         CacheBlk::State new_state,
+                                         PacketList &writebacks)
+{
+    if (blk == NULL) {
+        // need to do a replacement
+        BlkList compress_list;
+        blk = tags->findReplacement(pkt, writebacks, compress_list);
+        while (adaptiveCompression && !compress_list.empty()) {
+            updateData(compress_list.front(), writebacks, true);
+            compress_list.pop_front();
+        }
+        if (blk->isValid()) {
+            DPRINTF(Cache, "replacement: replacing %x with %x: %s\n",
+                    tags->regenerateBlkAddr(blk->tag,blk->set), pkt->getAddr(),
+                    (blk->isModified()) ? "writeback" : "clean");
+
+            if (blk->isModified()) {
+                // Need to write the data back
+                writebacks.push_back(writebackBlk(blk));
+            }
+        }
+        blk->tag = tags->extractTag(pkt->getAddr(), blk);
+    } else {
+        // must be a status change
+        // assert(blk->status != new_state);
+        if (blk->status == new_state) warn("Changing state to same value\n");
+    }
+
+    blk->status = new_state;
+    return blk;
+}
+
+
+template<class TagStore, class Coherence>
 bool
 Cache<TagStore,Coherence>::access(PacketPtr &pkt)
 {
@@ -112,7 +545,7 @@ Cache<TagStore,Coherence>::access(PacketPtr &pkt)
         prefetcher->handleMiss(pkt, curTick);
     }
     if (!pkt->req->isUncacheable()) {
-        blk = tags->handleAccess(pkt, lat, writebacks);
+        blk = handleAccess(pkt, lat, writebacks);
     } else {
         size = pkt->getSize();
     }
@@ -130,7 +563,7 @@ Cache<TagStore,Coherence>::access(PacketPtr &pkt)
                 warn("WriteInv doing a fastallocate"
                      "with an outstanding miss to the same address\n");
             }
-            blk = tags->handleFill(NULL, pkt, BlkValid | BlkWritable,
+            blk = handleFill(NULL, pkt, BlkValid | BlkWritable,
                                    writebacks);
             ++fastWrites;
         }
@@ -195,7 +628,7 @@ Cache<TagStore,Coherence>::getPacket()
         if (!pkt->req->isUncacheable()) {
             if (pkt->cmd == Packet::HardPFReq)
                 misses[Packet::HardPFReq][0/*pkt->req->getThreadNum()*/]++;
-            BlkType *blk = tags->findBlock(pkt);
+            BlkType *blk = tags->findBlock(pkt->getAddr());
             Packet::Command cmd = coherence->getBusCmd(pkt->cmd,
                                               (blk)? blk->status : 0);
             missQueue->setBusCmd(pkt, cmd);
@@ -224,7 +657,7 @@ Cache<TagStore,Coherence>::sendResult(PacketPtr &pkt, MSHR* mshr,
         if (upgrade) {
             assert(pkt);  //Upgrades need to be fixed
             pkt->flags &= ~CACHE_LINE_FILL;
-            BlkType *blk = tags->findBlock(pkt);
+            BlkType *blk = tags->findBlock(pkt->getAddr());
             CacheBlk::State old_state = (blk) ? blk->status : 0;
             CacheBlk::State new_state = coherence->getNewState(pkt,old_state);
             if (old_state != new_state)
@@ -233,7 +666,7 @@ Cache<TagStore,Coherence>::sendResult(PacketPtr &pkt, MSHR* mshr,
             //Set the state on the upgrade
             memcpy(pkt->getPtr<uint8_t>(), blk->data, blkSize);
             PacketList writebacks;
-            tags->handleFill(blk, mshr, new_state, writebacks, pkt);
+            handleFill(blk, mshr, new_state, writebacks, pkt);
             assert(writebacks.empty());
             missQueue->handleResponse(pkt, curTick + hitLatency);
         }
@@ -275,7 +708,7 @@ Cache<TagStore,Coherence>::handleResponse(PacketPtr &pkt)
         if (pkt->isCacheFill() && !pkt->isNoAllocate()) {
             DPRINTF(Cache, "Block for addr %x being updated in Cache\n",
                     pkt->getAddr());
-            blk = tags->findBlock(pkt);
+            blk = tags->findBlock(pkt->getAddr());
             CacheBlk::State old_state = (blk) ? blk->status : 0;
             PacketList writebacks;
             CacheBlk::State new_state = coherence->getNewState(pkt,old_state);
@@ -284,7 +717,7 @@ Cache<TagStore,Coherence>::handleResponse(PacketPtr &pkt)
                         "state %i to %i\n",
                         pkt->getAddr(),
                         old_state, new_state);
-            blk = tags->handleFill(blk, (MSHR*)pkt->senderState,
+            blk = handleFill(blk, (MSHR*)pkt->senderState,
                                    new_state, writebacks, pkt);
             while (!writebacks.empty()) {
                     missQueue->doWriteback(writebacks.front());
@@ -332,7 +765,7 @@ Cache<TagStore,Coherence>::snoop(PacketPtr &pkt)
     }
 
     Addr blk_addr = pkt->getAddr() & ~(Addr(blkSize-1));
-    BlkType *blk = tags->findBlock(pkt);
+    BlkType *blk = tags->findBlock(pkt->getAddr());
     MSHR *mshr = missQueue->findMSHR(blk_addr);
     if (coherence->hasProtocol() || pkt->isInvalidate()) {
         //@todo Move this into handle bus req
@@ -435,7 +868,7 @@ Cache<TagStore,Coherence>::snoop(PacketPtr &pkt)
                 "now supplying data, new state is %i\n",
                 pkt->cmdString(), blk_addr, new_state);
 
-        tags->handleSnoop(blk, new_state, pkt);
+        handleSnoop(blk, new_state, pkt);
         respondToSnoop(pkt, curTick + hitLatency);
         return;
     }
@@ -443,7 +876,7 @@ Cache<TagStore,Coherence>::snoop(PacketPtr &pkt)
         DPRINTF(Cache, "Cache snooped a %s request for addr %x, "
                 "new state is %i\n", pkt->cmdString(), blk_addr, new_state);
 
-    tags->handleSnoop(blk, new_state);
+    handleSnoop(blk, new_state);
 }
 
 template<class TagStore, class Coherence>
@@ -465,13 +898,6 @@ Cache<TagStore,Coherence>::snoopResponse(PacketPtr &pkt)
     }
 }
 
-template<class TagStore, class Coherence>
-void
-Cache<TagStore,Coherence>::invalidateBlk(Addr addr)
-{
-    tags->invalidateBlk(addr);
-}
-
 
 /**
  * @todo Fix to not assume write allocate
@@ -501,7 +927,7 @@ Cache<TagStore,Coherence>::probe(PacketPtr &pkt, bool update,
     PacketList writebacks;
     int lat;
 
-    BlkType *blk = tags->handleAccess(pkt, lat, writebacks, update);
+    BlkType *blk = handleAccess(pkt, lat, writebacks, update);
 
     DPRINTF(Cache, "%s %x %s\n", pkt->cmdString(),
             pkt->getAddr(), (blk) ? "hit" : "miss");
@@ -557,7 +983,7 @@ Cache<TagStore,Coherence>::probe(PacketPtr &pkt, bool update,
         if (!pkt->req->isUncacheable() /*Uncacheables just go through*/
             && (pkt->cmd != Packet::Writeback)/*Writebacks on miss fall through*/) {
                 // Fetch the cache block to fill
-            BlkType *blk = tags->findBlock(pkt);
+            BlkType *blk = tags->findBlock(pkt->getAddr());
             Packet::Command temp_cmd = coherence->getBusCmd(pkt->cmd,
                                                             (blk)? blk->status : 0);
 
@@ -593,7 +1019,7 @@ return 0;
                 DPRINTF(Cache, "Block for blk addr %x moving from state "
                         "%i to %i\n", busPkt->getAddr(), old_state, new_state);
 
-            tags->handleFill(blk, busPkt, new_state, writebacks, pkt);
+            handleFill(blk, busPkt, new_state, writebacks, pkt);
             //Free the packet
             delete busPkt;
 
@@ -639,7 +1065,7 @@ Cache<TagStore,Coherence>::snoopProbe(PacketPtr &pkt)
     }
 
     Addr blk_addr = pkt->getAddr() & ~(Addr(blkSize-1));
-    BlkType *blk = tags->findBlock(pkt);
+    BlkType *blk = tags->findBlock(pkt->getAddr());
     MSHR *mshr = missQueue->findMSHR(blk_addr);
     CacheBlk::State new_state = 0;
     bool satisfy = coherence->handleBusRequest(pkt,blk,mshr, new_state);
@@ -648,14 +1074,14 @@ Cache<TagStore,Coherence>::snoopProbe(PacketPtr &pkt)
                 "now supplying data, new state is %i\n",
                 pkt->cmdString(), blk_addr, new_state);
 
-            tags->handleSnoop(blk, new_state, pkt);
+            handleSnoop(blk, new_state, pkt);
             return hitLatency;
     }
     if (blk)
         DPRINTF(Cache, "Cache snooped a %s request for addr %x, "
                 "new state is %i\n",
                     pkt->cmdString(), blk_addr, new_state);
-    tags->handleSnoop(blk, new_state);
+    handleSnoop(blk, new_state);
     return 0;
 }
 
diff --git a/src/mem/cache/prefetch/base_prefetcher.cc b/src/mem/cache/prefetch/base_prefetcher.cc
index a1388fad6..4254800b1 100644
--- a/src/mem/cache/prefetch/base_prefetcher.cc
+++ b/src/mem/cache/prefetch/base_prefetcher.cc
@@ -102,6 +102,26 @@ BasePrefetcher::regStats(const std::string &name)
         ;
 }
 
+inline bool
+BasePrefetcher::inCache(Addr addr)
+{
+    if (cache->inCache(addr)) {
+        pfCacheHit++;
+        return true;
+    }
+    return false;
+}
+
+inline bool
+BasePrefetcher::inMissQueue(Addr addr)
+{
+    if (cache->inMissQueue(addr)) {
+        pfMSHRHit++;
+        return true;
+    }
+    return false;
+}
+
 PacketPtr
 BasePrefetcher::getPacket()
 {
@@ -118,7 +138,7 @@ BasePrefetcher::getPacket()
         pkt = *pf.begin();
         pf.pop_front();
         if (!cacheCheckPush) {
-            keepTrying = inCache(pkt);
+            keepTrying = cache->inCache(pkt->getAddr());
         }
         if (pf.empty()) {
             cache->clearMasterRequest(Request_PF);
@@ -190,7 +210,7 @@ BasePrefetcher::handleMiss(PacketPtr &pkt, Tick time)
 
             //Check if it is already in the cache
             if (cacheCheckPush) {
-                if (inCache(prefetch)) {
+                if (cache->inCache(prefetch->getAddr())) {
                     addr++;
                     delay++;
                     continue;
@@ -198,7 +218,7 @@ BasePrefetcher::handleMiss(PacketPtr &pkt, Tick time)
             }
 
             //Check if it is already in the miss_queue
-            if (inMissQueue(prefetch->getAddr())) {
+            if (cache->inMissQueue(prefetch->getAddr())) {
                 addr++;
                 delay++;
                 continue;
diff --git a/src/mem/cache/prefetch/base_prefetcher.hh b/src/mem/cache/prefetch/base_prefetcher.hh
index 781d3ab09..2780f5e5a 100644
--- a/src/mem/cache/prefetch/base_prefetcher.hh
+++ b/src/mem/cache/prefetch/base_prefetcher.hh
@@ -36,10 +36,13 @@
 #ifndef __MEM_CACHE_PREFETCH_BASE_PREFETCHER_HH__
 #define __MEM_CACHE_PREFETCH_BASE_PREFETCHER_HH__
 
-#include "mem/packet.hh"
 #include <list>
 
+#include "base/statistics.hh"
+#include "mem/packet.hh"
+
 class BaseCache;
+
 class BasePrefetcher
 {
   protected:
@@ -95,6 +98,10 @@ class BasePrefetcher
 
     void handleMiss(PacketPtr &pkt, Tick time);
 
+    bool inCache(Addr addr);
+
+    bool inMissQueue(Addr addr);
+
     PacketPtr getPacket();
 
     bool havePending()
@@ -106,10 +113,6 @@ class BasePrefetcher
                                    std::list<Addr> &addresses,
                                    std::list<Tick> &delays) = 0;
 
-    virtual bool inCache(PacketPtr &pkt) = 0;
-
-    virtual bool inMissQueue(Addr address) = 0;
-
     std::list<PacketPtr>::iterator inPrefetch(Addr address);
 };
 
diff --git a/src/mem/cache/prefetch/ghb_prefetcher.cc b/src/mem/cache/prefetch/ghb_prefetcher.cc
index a6c419113..d7d819a2d 100644
--- a/src/mem/cache/prefetch/ghb_prefetcher.cc
+++ b/src/mem/cache/prefetch/ghb_prefetcher.cc
@@ -31,18 +31,44 @@
 
 /**
  * @file
- * GHB Prefetcher template instantiations.
+ * GHB Prefetcher implementation.
  */
 
-#include "mem/cache/tags/cache_tags.hh"
+#include "mem/cache/prefetch/ghb_prefetcher.hh"
+#include "arch/isa_traits.hh"
 
-#include "mem/cache/tags/lru.hh"
+void
+GHBPrefetcher::calculatePrefetch(PacketPtr &pkt, std::list<Addr> &addresses,
+                                 std::list<Tick> &delays)
+{
+    Addr blkAddr = pkt->getAddr() & ~(Addr)(this->blkSize-1);
+    int cpuID = pkt->req->getCpuNum();
+    if (!useCPUId) cpuID = 0;
 
-#include "mem/cache/prefetch/ghb_prefetcher.hh"
 
-// Template Instantiations
-#ifndef DOXYGEN_SHOULD_SKIP_THIS
+    int new_stride = blkAddr - last_miss_addr[cpuID];
+    int old_stride = last_miss_addr[cpuID] -
+        second_last_miss_addr[cpuID];
 
-template class GHBPrefetcher<CacheTags<LRU> >;
+    second_last_miss_addr[cpuID] = last_miss_addr[cpuID];
+    last_miss_addr[cpuID] = blkAddr;
 
-#endif //DOXYGEN_SHOULD_SKIP_THIS
+    if (new_stride == old_stride) {
+        for (int d=1; d <= degree; d++) {
+            Addr newAddr = blkAddr + d * new_stride;
+            if (this->pageStop &&
+                (blkAddr & ~(TheISA::VMPageSize - 1)) !=
+                (newAddr & ~(TheISA::VMPageSize - 1)))
+            {
+                //Spanned the page, so now stop
+                this->pfSpanPage += degree - d + 1;
+                return;
+            }
+            else
+            {
+                addresses.push_back(newAddr);
+                delays.push_back(latency);
+            }
+        }
+    }
+}
diff --git a/src/mem/cache/prefetch/ghb_prefetcher.hh b/src/mem/cache/prefetch/ghb_prefetcher.hh
index c558a3e64..f31b56dcf 100644
--- a/src/mem/cache/prefetch/ghb_prefetcher.hh
+++ b/src/mem/cache/prefetch/ghb_prefetcher.hh
@@ -30,31 +30,18 @@
 
 /**
  * @file
- * Describes a ghb prefetcher based on template policies.
+ * Describes a ghb prefetcher.
  */
 
 #ifndef __MEM_CACHE_PREFETCH_GHB_PREFETCHER_HH__
 #define __MEM_CACHE_PREFETCH_GHB_PREFETCHER_HH__
 
-#include "base/misc.hh" // fatal, panic, and warn
+#include "mem/cache/prefetch/base_prefetcher.hh"
 
-#include "mem/cache/prefetch/prefetcher.hh"
-
-/**
- * A template-policy based cache. The behavior of the cache can be altered by
- * supplying different template policies. TagStore handles all tag and data
- * storage @sa TagStore. MissBuffer handles all misses and writes/writebacks
- * @sa MissQueue. Coherence handles all coherence policy details @sa
- * UniCoherence, SimpleMultiCoherence.
- */
-template <class TagStore>
-class GHBPrefetcher : public Prefetcher<TagStore>
+class GHBPrefetcher : public BasePrefetcher
 {
   protected:
 
-    MissBuffer* mq;
-    TagStore* tags;
-
     Addr second_last_miss_addr[64/*MAX_CPUS*/];
     Addr last_miss_addr[64/*MAX_CPUS*/];
 
@@ -67,48 +54,16 @@ class GHBPrefetcher : public Prefetcher<TagStore>
     GHBPrefetcher(int size, bool pageStop, bool serialSquash,
                   bool cacheCheckPush, bool onlyData,
                   Tick latency, int degree, bool useCPUId)
-        :Prefetcher<TagStore>(size, pageStop, serialSquash,
-                                         cacheCheckPush, onlyData),
-         latency(latency), degree(degree), useCPUId(useCPUId)
+        : BasePrefetcher(size, pageStop, serialSquash,
+                         cacheCheckPush, onlyData),
+          latency(latency), degree(degree), useCPUId(useCPUId)
     {
     }
 
     ~GHBPrefetcher() {}
 
     void calculatePrefetch(PacketPtr &pkt, std::list<Addr> &addresses,
-                           std::list<Tick> &delays)
-    {
-        Addr blkAddr = pkt->getAddr() & ~(Addr)(this->blkSize-1);
-        int cpuID = pkt->req->getCpuNum();
-        if (!useCPUId) cpuID = 0;
-
-
-        int new_stride = blkAddr - last_miss_addr[cpuID];
-        int old_stride = last_miss_addr[cpuID] -
-                         second_last_miss_addr[cpuID];
-
-        second_last_miss_addr[cpuID] = last_miss_addr[cpuID];
-        last_miss_addr[cpuID] = blkAddr;
-
-        if (new_stride == old_stride) {
-            for (int d=1; d <= degree; d++) {
-                Addr newAddr = blkAddr + d * new_stride;
-                if (this->pageStop &&
-                    (blkAddr & ~(TheISA::VMPageSize - 1)) !=
-                    (newAddr & ~(TheISA::VMPageSize - 1)))
-                {
-                    //Spanned the page, so now stop
-                    this->pfSpanPage += degree - d + 1;
-                    return;
-                }
-                else
-                {
-                    addresses.push_back(newAddr);
-                    delays.push_back(latency);
-                }
-            }
-        }
-    }
+                           std::list<Tick> &delays);
 };
 
 #endif // __MEM_CACHE_PREFETCH_GHB_PREFETCHER_HH__
diff --git a/src/mem/cache/prefetch/stride_prefetcher.cc b/src/mem/cache/prefetch/stride_prefetcher.cc
index 2204871cc..8d957182a 100644
--- a/src/mem/cache/prefetch/stride_prefetcher.cc
+++ b/src/mem/cache/prefetch/stride_prefetcher.cc
@@ -34,15 +34,59 @@
  * Stride Prefetcher template instantiations.
  */
 
-#include "mem/cache/tags/cache_tags.hh"
+#include "mem/cache/prefetch/stride_prefetcher.hh"
 
-#include "mem/cache/tags/lru.hh"
+void
+StridePrefetcher::calculatePrefetch(PacketPtr &pkt, std::list<Addr> &addresses,
+                                    std::list<Tick> &delays)
+{
+//	Addr blkAddr = pkt->paddr & ~(Addr)(this->blkSize-1);
+    int cpuID = pkt->req->getCpuNum();
+    if (!useCPUId) cpuID = 0;
 
-#include "mem/cache/prefetch/stride_prefetcher.hh"
+    /* Scan Table for IAddr Match */
+/*	std::list<strideEntry*>::iterator iter;
+  for (iter=table[cpuID].begin();
+  iter !=table[cpuID].end();
+  iter++) {
+  if ((*iter)->IAddr == pkt->pc) break;
+  }
+
+  if (iter != table[cpuID].end()) {
+  //Hit in table
+
+  int newStride = blkAddr - (*iter)->MAddr;
+  if (newStride == (*iter)->stride) {
+  (*iter)->confidence++;
+  }
+  else {
+  (*iter)->stride = newStride;
+  (*iter)->confidence--;
+  }
 
-// Template Instantiations
-#ifndef DOXYGEN_SHOULD_SKIP_THIS
+  (*iter)->MAddr = blkAddr;
 
-template class StridePrefetcher<CacheTags<LRU> >;
+  for (int d=1; d <= degree; d++) {
+  Addr newAddr = blkAddr + d * newStride;
+  if (this->pageStop &&
+  (blkAddr & ~(TheISA::VMPageSize - 1)) !=
+  (newAddr & ~(TheISA::VMPageSize - 1)))
+  {
+  //Spanned the page, so now stop
+  this->pfSpanPage += degree - d + 1;
+  return;
+  }
+  else
+  {
+  addresses.push_back(newAddr);
+  delays.push_back(latency);
+  }
+  }
+  }
+  else {
+  //Miss in table
+  //Find lowest confidence and replace
 
-#endif //DOXYGEN_SHOULD_SKIP_THIS
+  }
+*/
+}
diff --git a/src/mem/cache/prefetch/stride_prefetcher.hh b/src/mem/cache/prefetch/stride_prefetcher.hh
index 57e430400..831e60fb4 100644
--- a/src/mem/cache/prefetch/stride_prefetcher.hh
+++ b/src/mem/cache/prefetch/stride_prefetcher.hh
@@ -30,31 +30,18 @@
 
 /**
  * @file
- * Describes a strided prefetcher based on template policies.
+ * Describes a strided prefetcher.
  */
 
 #ifndef __MEM_CACHE_PREFETCH_STRIDE_PREFETCHER_HH__
 #define __MEM_CACHE_PREFETCH_STRIDE_PREFETCHER_HH__
 
-#include "base/misc.hh" // fatal, panic, and warn
+#include "mem/cache/prefetch/base_prefetcher.hh"
 
-#include "mem/cache/prefetch/prefetcher.hh"
-
-/**
- * A template-policy based cache. The behavior of the cache can be altered by
- * supplying different template policies. TagStore handles all tag and data
- * storage @sa TagStore. MissBuffer handles all misses and writes/writebacks
- * @sa MissQueue. Coherence handles all coherence policy details @sa
- * UniCoherence, SimpleMultiCoherence.
- */
-template <class TagStore>
-class StridePrefetcher : public Prefetcher<TagStore>
+class StridePrefetcher : public BasePrefetcher
 {
   protected:
 
-    MissBuffer* mq;
-    TagStore* tags;
-
     class strideEntry
     {
       public:
@@ -84,66 +71,16 @@ class StridePrefetcher : public Prefetcher<TagStore>
     StridePrefetcher(int size, bool pageStop, bool serialSquash,
                      bool cacheCheckPush, bool onlyData,
                      Tick latency, int degree, bool useCPUId)
-        :Prefetcher<TagStore>(size, pageStop, serialSquash,
-                                         cacheCheckPush, onlyData),
-         latency(latency), degree(degree), useCPUId(useCPUId)
+        : BasePrefetcher(size, pageStop, serialSquash,
+                         cacheCheckPush, onlyData),
+          latency(latency), degree(degree), useCPUId(useCPUId)
     {
     }
 
     ~StridePrefetcher() {}
 
     void calculatePrefetch(PacketPtr &pkt, std::list<Addr> &addresses,
-                           std::list<Tick> &delays)
-    {
-//	Addr blkAddr = pkt->paddr & ~(Addr)(this->blkSize-1);
-        int cpuID = pkt->req->getCpuNum();
-        if (!useCPUId) cpuID = 0;
-
-        /* Scan Table for IAddr Match */
-/*	std::list<strideEntry*>::iterator iter;
-        for (iter=table[cpuID].begin();
-             iter !=table[cpuID].end();
-             iter++) {
-            if ((*iter)->IAddr == pkt->pc) break;
-        }
-
-        if (iter != table[cpuID].end()) {
-            //Hit in table
-
-            int newStride = blkAddr - (*iter)->MAddr;
-            if (newStride == (*iter)->stride) {
-                (*iter)->confidence++;
-            }
-            else {
-                (*iter)->stride = newStride;
-                (*iter)->confidence--;
-            }
-
-            (*iter)->MAddr = blkAddr;
-
-            for (int d=1; d <= degree; d++) {
-                Addr newAddr = blkAddr + d * newStride;
-                if (this->pageStop &&
-                    (blkAddr & ~(TheISA::VMPageSize - 1)) !=
-                    (newAddr & ~(TheISA::VMPageSize - 1)))
-                {
-                    //Spanned the page, so now stop
-                    this->pfSpanPage += degree - d + 1;
-                    return;
-                }
-                else
-                {
-                    addresses.push_back(newAddr);
-                    delays.push_back(latency);
-                }
-            }
-        }
-        else {
-            //Miss in table
-            //Find lowest confidence and replace
-
-        }
-*/    }
+                           std::list<Tick> &delays);
 };
 
 #endif // __MEM_CACHE_PREFETCH_STRIDE_PREFETCHER_HH__
diff --git a/src/mem/cache/prefetch/tagged_prefetcher_impl.hh b/src/mem/cache/prefetch/tagged_prefetcher.cc
index b3d4284c7..bc1fa46b9 100644
--- a/src/mem/cache/prefetch/tagged_prefetcher_impl.hh
+++ b/src/mem/cache/prefetch/tagged_prefetcher.cc
@@ -36,20 +36,18 @@
 #include "arch/isa_traits.hh"
 #include "mem/cache/prefetch/tagged_prefetcher.hh"
 
-template <class TagStore>
-TaggedPrefetcher<TagStore>::
+TaggedPrefetcher::
 TaggedPrefetcher(int size, bool pageStop, bool serialSquash,
                  bool cacheCheckPush, bool onlyData,
                  Tick latency, int degree)
-    :Prefetcher<TagStore>(size, pageStop, serialSquash,
-                                     cacheCheckPush, onlyData),
-     latency(latency), degree(degree)
+    : BasePrefetcher(size, pageStop, serialSquash,
+                     cacheCheckPush, onlyData),
+      latency(latency), degree(degree)
 {
 }
 
-template <class TagStore>
 void
-TaggedPrefetcher<TagStore>::
+TaggedPrefetcher::
 calculatePrefetch(PacketPtr &pkt, std::list<Addr> &addresses,
                   std::list<Tick> &delays)
 {
diff --git a/src/mem/cache/prefetch/tagged_prefetcher.hh b/src/mem/cache/prefetch/tagged_prefetcher.hh
index dc2aaec50..b9d228aba 100644
--- a/src/mem/cache/prefetch/tagged_prefetcher.hh
+++ b/src/mem/cache/prefetch/tagged_prefetcher.hh
@@ -30,29 +30,18 @@
 
 /**
  * @file
- * Describes a tagged prefetcher based on template policies.
+ * Describes a tagged prefetcher.
  */
 
 #ifndef __MEM_CACHE_PREFETCH_TAGGED_PREFETCHER_HH__
 #define __MEM_CACHE_PREFETCH_TAGGED_PREFETCHER_HH__
 
-#include "mem/cache/prefetch/prefetcher.hh"
+#include "mem/cache/prefetch/base_prefetcher.hh"
 
-/**
- * A template-policy based cache. The behavior of the cache can be altered by
- * supplying different template policies. TagStore handles all tag and data
- * storage @sa TagStore. MissBuffer handles all misses and writes/writebacks
- * @sa MissQueue. Coherence handles all coherence policy details @sa
- * UniCoherence, SimpleMultiCoherence.
- */
-template <class TagStore>
-class TaggedPrefetcher : public Prefetcher<TagStore>
+class TaggedPrefetcher : public BasePrefetcher
 {
   protected:
 
-    MissBuffer* mq;
-    TagStore* tags;
-
     Tick latency;
     int degree;
 
diff --git a/src/mem/cache/tags/fa_lru.cc b/src/mem/cache/tags/fa_lru.cc
index a58ddaff8..42a1fe34f 100644
--- a/src/mem/cache/tags/fa_lru.cc
+++ b/src/mem/cache/tags/fa_lru.cc
@@ -153,12 +153,9 @@ FALRU::probe(Addr addr) const
 }
 
 void
-FALRU::invalidateBlk(Addr addr)
+FALRU::invalidateBlk(FALRU::BlkType *blk)
 {
-    Addr blkAddr = blkAlign(addr);
-    FALRUBlk* blk = (*tagHash.find(blkAddr)).second;
     if (blk) {
-        assert(blk->tag == blkAddr);
         blk->status = 0;
         blk->isTouched = false;
         tagsInUse--;
@@ -202,44 +199,6 @@ FALRU::findBlock(Addr addr, int &lat, int *inCache)
     return blk;
 }
 
-FALRUBlk*
-FALRU::findBlock(PacketPtr &pkt, int &lat, int *inCache)
-{
-    Addr addr = pkt->getAddr();
-
-    accesses++;
-    int tmp_in_cache = 0;
-    Addr blkAddr = blkAlign(addr);
-    FALRUBlk* blk = hashLookup(blkAddr);
-
-    if (blk && blk->isValid()) {
-        assert(blk->tag == blkAddr);
-        tmp_in_cache = blk->inCache;
-        for (int i = 0; i < numCaches; i++) {
-            if (1<<i & blk->inCache) {
-                hits[i]++;
-            } else {
-                misses[i]++;
-            }
-        }
-        hits[numCaches]++;
-        if (blk != head){
-            moveToHead(blk);
-        }
-    } else {
-        blk = NULL;
-        for (int i = 0; i < numCaches+1; ++i) {
-            misses[i]++;
-        }
-    }
-    if (inCache) {
-        *inCache = tmp_in_cache;
-    }
-
-    lat = hitLatency;
-    //assert(check());
-    return blk;
-}
 
 FALRUBlk*
 FALRU::findBlock(Addr addr) const
diff --git a/src/mem/cache/tags/fa_lru.hh b/src/mem/cache/tags/fa_lru.hh
index 2db89d603..dabbda740 100644
--- a/src/mem/cache/tags/fa_lru.hh
+++ b/src/mem/cache/tags/fa_lru.hh
@@ -173,11 +173,10 @@ public:
     bool probe(Addr addr) const;
 
     /**
-     * Invalidate the cache block that contains the given addr.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
+     * Invalidate a cache block.
+     * @param blk The block to invalidate.
      */
-    void invalidateBlk(Addr addr);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Find the block in the cache and update the replacement data. Returns
@@ -191,16 +190,6 @@ public:
     FALRUBlk* findBlock(Addr addr, int &lat, int *inCache = 0);
 
     /**
-     * Find the block in the cache and update the replacement data. Returns
-     * the access latency and the in cache flags as a side effect
-     * @param pkt The req whose block to find
-     * @param lat The latency of the access.
-     * @param inCache The FALRUBlk::inCache flags.
-     * @return Pointer to the cache block.
-     */
-    FALRUBlk* findBlock(PacketPtr &pkt, int &lat, int *inCache = 0);
-
-    /**
      * Find the block in the cache, do not update the replacement data.
      * @param addr The address to look for.
      * @param asid The address space ID.
diff --git a/src/mem/cache/tags/iic.cc b/src/mem/cache/tags/iic.cc
index f4e870659..38f9662ea 100644
--- a/src/mem/cache/tags/iic.cc
+++ b/src/mem/cache/tags/iic.cc
@@ -284,65 +284,6 @@ IIC::findBlock(Addr addr, int &lat)
     return tag_ptr;
 }
 
-IICTag*
-IIC::findBlock(PacketPtr &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = hash(addr);
-    int set_lat;
-
-    unsigned long chain_ptr;
-
-    if (PROFILE_IIC)
-        setAccess.sample(set);
-
-    IICTag *tag_ptr = sets[set].findTag(tag, chain_ptr);
-    set_lat = 1;
-    if (tag_ptr == NULL && chain_ptr != tagNull) {
-        int secondary_depth;
-        tag_ptr = secondaryChain(tag, chain_ptr, &secondary_depth);
-        set_lat += secondary_depth;
-        // set depth for statistics fix this later!!! egh
-        sets[set].depth = set_lat;
-
-        if (tag_ptr != NULL) {
-            /* need to move tag into primary table */
-            // need to preserve chain: fix this egh
-            sets[set].tags[assoc-1]->chain_ptr = tag_ptr->chain_ptr;
-            tagSwap(tag_ptr - tagStore, sets[set].tags[assoc-1] - tagStore);
-            tag_ptr = sets[set].findTag(tag, chain_ptr);
-            assert(tag_ptr!=NULL);
-        }
-
-    }
-    set_lat = set_lat * hashDelay + hitLatency;
-    if (tag_ptr != NULL) {
-        // IIC replacement: if this is not the first element of
-        //   list, reorder
-        sets[set].moveToHead(tag_ptr);
-
-        hitHashDepth.sample(sets[set].depth);
-        hashHit++;
-        hitDepthTotal += sets[set].depth;
-        tag_ptr->status |= BlkReferenced;
-        lat = set_lat;
-        if (tag_ptr->whenReady > curTick && tag_ptr->whenReady - curTick > set_lat) {
-            lat = tag_ptr->whenReady - curTick;
-        }
-
-        tag_ptr->refCount += 1;
-    }
-    else {
-        // fall through: cache block not found, not a hit...
-        missHashDepth.sample(sets[set].depth);
-        hashMiss++;
-        missDepthTotal += sets[set].depth;
-        lat = set_lat;
-    }
-    return tag_ptr;
-}
 
 IICTag*
 IIC::findBlock(Addr addr) const
@@ -695,9 +636,8 @@ IIC::compressBlock(unsigned long index)
 }
 
 void
-IIC::invalidateBlk(Addr addr)
+IIC::invalidateBlk(IIC::BlkType *tag_ptr)
 {
-    IICTag* tag_ptr = findBlock(addr);
     if (tag_ptr) {
         for (int i = 0; i < tag_ptr->numData; ++i) {
             dataReferenceCount[tag_ptr->data_ptr[i]]--;
diff --git a/src/mem/cache/tags/iic.hh b/src/mem/cache/tags/iic.hh
index 92bd6da1d..d0663d330 100644
--- a/src/mem/cache/tags/iic.hh
+++ b/src/mem/cache/tags/iic.hh
@@ -435,11 +435,10 @@ class IIC : public BaseTags
     void compressBlock(unsigned long index);
 
     /**
-     * Invalidate the block containing the address.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
+     * Invalidate a block.
+     * @param blk The block to invalidate.
      */
-    void invalidateBlk(Addr addr);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Find the block and update the replacement data. This call also returns
@@ -452,15 +451,6 @@ class IIC : public BaseTags
     IICTag* findBlock(Addr addr, int &lat);
 
     /**
-     * Find the block and update the replacement data. This call also returns
-     * the access latency as a side effect.
-     * @param pkt The req whose block to find
-     * @param lat The access latency.
-     * @return A pointer to the block found, if any.
-     */
-    IICTag* findBlock(PacketPtr &pkt, int &lat);
-
-    /**
      * Find the block, do not update the replacement data.
      * @param addr The address to find.
      * @param asid The address space ID.
diff --git a/src/mem/cache/tags/lru.cc b/src/mem/cache/tags/lru.cc
index 31d29aae6..102bb3506 100644
--- a/src/mem/cache/tags/lru.cc
+++ b/src/mem/cache/tags/lru.cc
@@ -183,27 +183,6 @@ LRU::findBlock(Addr addr, int &lat)
     return blk;
 }
 
-LRUBlk*
-LRU::findBlock(PacketPtr &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    LRUBlk *blk = sets[set].findBlk(tag);
-    lat = hitLatency;
-    if (blk != NULL) {
-        // move this block to head of the MRU list
-        sets[set].moveToHead(blk);
-        if (blk->whenReady > curTick
-            && blk->whenReady - curTick > hitLatency) {
-            lat = blk->whenReady - curTick;
-        }
-        blk->refCount += 1;
-    }
-
-    return blk;
-}
 
 LRUBlk*
 LRU::findBlock(Addr addr) const
@@ -240,9 +219,8 @@ LRU::findReplacement(PacketPtr &pkt, PacketList &writebacks,
 }
 
 void
-LRU::invalidateBlk(Addr addr)
+LRU::invalidateBlk(LRU::BlkType *blk)
 {
-    LRUBlk *blk = findBlock(addr);
     if (blk) {
         blk->status = 0;
         blk->isTouched = false;
diff --git a/src/mem/cache/tags/lru.hh b/src/mem/cache/tags/lru.hh
index fed688283..4b94adca6 100644
--- a/src/mem/cache/tags/lru.hh
+++ b/src/mem/cache/tags/lru.hh
@@ -161,20 +161,10 @@ public:
     bool probe(Addr addr) const;
 
     /**
-     * Invalidate the block containing the given address.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
-     */
-    void invalidateBlk(Addr addr);
-
-    /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param pkt The request whose block to find.
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
+     * Invalidate the given block.
+     * @param blk The block to invalidate.
      */
-    LRUBlk* findBlock(PacketPtr &pkt, int &lat);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Finds the given address in the cache and update replacement data.
diff --git a/src/mem/cache/tags/split.cc b/src/mem/cache/tags/split.cc
index bc74f0e0f..5ac87eaba 100644
--- a/src/mem/cache/tags/split.cc
+++ b/src/mem/cache/tags/split.cc
@@ -266,58 +266,6 @@ Split::probe(Addr addr) const
     return success;
 }
 
-SplitBlk*
-Split::findBlock(PacketPtr &pkt, int &lat)
-{
-
-    Addr aligned = blkAlign(pkt->getAddr());
-
-    if (memHash.count(aligned)) {
-        memHash[aligned]++;
-    } else if (pkt->nic_pkt()) {
-        memHash[aligned] = 1;
-    }
-
-    SplitBlk *blk = lru->findBlock(pkt->getAddr(), lat);
-    if (blk) {
-        if (pkt->nic_pkt()) {
-            NR_CP_hits++;
-        } else {
-            CR_CP_hits++;
-        }
-    } else {
-        if (lifo && lifo_net) {
-            blk = lifo_net->findBlock(pkt->getAddr(), lat);
-
-        } else if (lru_net) {
-            blk = lru_net->findBlock(pkt->getAddr(), lat);
-        }
-        if (blk) {
-            if (pkt->nic_pkt()) {
-                NR_NP_hits++;
-            } else {
-                CR_NP_hits++;
-            }
-        }
-    }
-
-    if (blk) {
-        Tick latency = curTick - blk->ts;
-        if (blk->isNIC) {
-            if (!blk->isUsed && !pkt->nic_pkt()) {
-                    useByCPUCycleDist.sample(latency);
-                    nicUseByCPUCycleTotal += latency;
-                    nicBlksUsedByCPU++;
-            }
-        }
-        blk->isUsed = true;
-
-        if (pkt->nic_pkt()) {
-            DPRINTF(Split, "found block in partition %d\n", blk->part);
-        }
-    }
-    return blk;
-}
 
 SplitBlk*
 Split::findBlock(Addr addr, int &lat)
@@ -403,14 +351,16 @@ Split::findReplacement(PacketPtr &pkt, PacketList &writebacks,
 }
 
 void
-Split::invalidateBlk(Addr addr)
+Split::invalidateBlk(Split::BlkType *blk)
 {
-    SplitBlk *blk = lru->findBlock(addr);
     if (!blk) {
+        fatal("FIXME!\n");
+#if 0
         if (lifo && lifo_net)
             blk = lifo_net->findBlock(addr);
         else if (lru_net)
             blk = lru_net->findBlock(addr);
+#endif
 
         if (!blk)
             return;
diff --git a/src/mem/cache/tags/split.hh b/src/mem/cache/tags/split.hh
index 898d3c7a0..e6ace0921 100644
--- a/src/mem/cache/tags/split.hh
+++ b/src/mem/cache/tags/split.hh
@@ -184,11 +184,10 @@ class Split : public BaseTags
     bool probe(Addr addr) const;
 
     /**
-     * Invalidate the block containing the given address.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
+     * Invalidate the given block.
+     * @param blk The block to invalidate.
      */
-    void invalidateBlk(Addr addr);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Finds the given address in the cache and update replacement data.
@@ -201,15 +200,6 @@ class Split : public BaseTags
     SplitBlk* findBlock(Addr addr, int &lat);
 
     /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param pkt The memory request whose block to find
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(PacketPtr &pkt, int &lat);
-
-    /**
      * Finds the given address in the cache, do not update replacement data.
      * @param addr The address to find.
      * @param asid The address space ID.
diff --git a/src/mem/cache/tags/split_lifo.cc b/src/mem/cache/tags/split_lifo.cc
index 302e2aaeb..792ff8fa7 100644
--- a/src/mem/cache/tags/split_lifo.cc
+++ b/src/mem/cache/tags/split_lifo.cc
@@ -254,31 +254,6 @@ SplitLIFO::findBlock(Addr addr, int &lat)
     return blk;
 }
 
-SplitBlk*
-SplitLIFO::findBlock(PacketPtr &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *blk = sets[set].findBlk(tag);
-
-    if (blk) {
-        DPRINTF(Split, "Found LIFO blk %#x in set %d, with tag %#x\n",
-                addr, set, tag);
-        hits++;
-
-        if (twoQueue) {
-            blk->isUsed = true;
-            sets[set].moveToFirstIn(blk);
-        } else {
-            sets[set].moveToLastIn(blk);
-        }
-    }
-    lat = hitLatency;
-
-    return blk;
-}
 
 SplitBlk*
 SplitLIFO::findBlock(Addr addr) const
@@ -335,9 +310,8 @@ SplitLIFO::findReplacement(PacketPtr &pkt, PacketList &writebacks,
 }
 
 void
-SplitLIFO::invalidateBlk(Addr addr)
+SplitLIFO::invalidateBlk(SplitLIFO::BlkType *blk)
 {
-    SplitBlk *blk = findBlock(addr);
     if (blk) {
         blk->status = 0;
         blk->isTouched = false;
diff --git a/src/mem/cache/tags/split_lifo.hh b/src/mem/cache/tags/split_lifo.hh
index 6c3befe37..9001cdb14 100644
--- a/src/mem/cache/tags/split_lifo.hh
+++ b/src/mem/cache/tags/split_lifo.hh
@@ -184,11 +184,10 @@ public:
     bool probe( Addr addr) const;
 
     /**
-     * Invalidate the block containing the given address.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
+     * Invalidate the given block.
+     * @param blk The block to invalidate.
      */
-    void invalidateBlk(Addr addr);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Finds the given address in the cache and update replacement data.
@@ -201,15 +200,6 @@ public:
     SplitBlk* findBlock(Addr addr, int &lat);
 
     /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param pkt The req whose block to find
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(PacketPtr &pkt, int &lat);
-
-    /**
      * Finds the given address in the cache, do not update replacement data.
      * @param addr The address to find.
      * @param asid The address space ID.
diff --git a/src/mem/cache/tags/split_lru.cc b/src/mem/cache/tags/split_lru.cc
index 11c9a5d64..c37d72cb7 100644
--- a/src/mem/cache/tags/split_lru.cc
+++ b/src/mem/cache/tags/split_lru.cc
@@ -202,27 +202,6 @@ SplitLRU::findBlock(Addr addr, int &lat)
     return blk;
 }
 
-SplitBlk*
-SplitLRU::findBlock(PacketPtr &pkt, int &lat)
-{
-    Addr addr = pkt->getAddr();
-
-    Addr tag = extractTag(addr);
-    unsigned set = extractSet(addr);
-    SplitBlk *blk = sets[set].findBlk(tag);
-    lat = hitLatency;
-    if (blk != NULL) {
-        // move this block to head of the MRU list
-        sets[set].moveToHead(blk);
-        if (blk->whenReady > curTick && blk->whenReady - curTick > hitLatency){
-            lat = blk->whenReady - curTick;
-        }
-        blk->refCount += 1;
-        hits++;
-    }
-
-    return blk;
-}
 
 SplitBlk*
 SplitLRU::findBlock(Addr addr) const
@@ -261,9 +240,8 @@ SplitLRU::findReplacement(PacketPtr &pkt, PacketList &writebacks,
 }
 
 void
-SplitLRU::invalidateBlk(Addr addr)
+SplitLRU::invalidateBlk(SplitLRU::BlkType *blk)
 {
-    SplitBlk *blk = findBlock(addr);
     if (blk) {
         blk->status = 0;
         blk->isTouched = false;
diff --git a/src/mem/cache/tags/split_lru.hh b/src/mem/cache/tags/split_lru.hh
index 6160d59e5..e17a478d3 100644
--- a/src/mem/cache/tags/split_lru.hh
+++ b/src/mem/cache/tags/split_lru.hh
@@ -167,11 +167,10 @@ public:
     bool probe(Addr addr) const;
 
     /**
-     * Invalidate the block containing the given address.
-     * @param asid The address space ID.
-     * @param addr The address to invalidate.
+     * Invalidate the given block.
+     * @param blk The block to invalidate.
      */
-    void invalidateBlk(Addr addr);
+    void invalidateBlk(BlkType *blk);
 
     /**
      * Finds the given address in the cache and update replacement data.
@@ -184,15 +183,6 @@ public:
     SplitBlk* findBlock(Addr addr, int &lat);
 
     /**
-     * Finds the given address in the cache and update replacement data.
-     * Returns the access latency as a side effect.
-     * @param pkt The req whose block to find.
-     * @param lat The access latency.
-     * @return Pointer to the cache block if found.
-     */
-    SplitBlk* findBlock(PacketPtr &pkt, int &lat);
-
-    /**
      * Finds the given address in the cache, do not update replacement data.
      * @param addr The address to find.
      * @param asid The address space ID.
diff --git a/src/mem/physical.cc b/src/mem/physical.cc
index 6610e547d..7d616a4e5 100644
--- a/src/mem/physical.cc
+++ b/src/mem/physical.cc
@@ -42,6 +42,7 @@
 #include "arch/isa_traits.hh"
 #include "base/misc.hh"
 #include "config/full_system.hh"
+#include "mem/packet_access.hh"
 #include "mem/physical.hh"
 #include "sim/builder.hh"
 #include "sim/eventq.hh"
@@ -203,18 +204,60 @@ PhysicalMemory::doFunctionalAccess(PacketPtr pkt)
         if (pkt->req->isLocked()) {
             trackLoadLocked(pkt->req);
         }
-        DPRINTF(MemoryAccess, "Performing Read of size %i on address 0x%x\n",
-                pkt->getSize(), pkt->getAddr());
         memcpy(pkt->getPtr<uint8_t>(),
                pmemAddr + pkt->getAddr() - params()->addrRange.start,
                pkt->getSize());
+#if TRACING_ON
+        switch (pkt->getSize()) {
+          case sizeof(uint64_t):
+            DPRINTF(MemoryAccess, "Read of size %i on address 0x%x data 0x%x\n",
+                    pkt->getSize(), pkt->getAddr(),pkt->get<uint64_t>());
+            break;
+          case sizeof(uint32_t):
+            DPRINTF(MemoryAccess, "Read of size %i on address 0x%x data 0x%x\n",
+                    pkt->getSize(), pkt->getAddr(),pkt->get<uint32_t>());
+            break;
+          case sizeof(uint16_t):
+            DPRINTF(MemoryAccess, "Read of size %i on address 0x%x data 0x%x\n",
+                    pkt->getSize(), pkt->getAddr(),pkt->get<uint16_t>());
+            break;
+          case sizeof(uint8_t):
+            DPRINTF(MemoryAccess, "Read of size %i on address 0x%x data 0x%x\n",
+                    pkt->getSize(), pkt->getAddr(),pkt->get<uint8_t>());
+            break;
+          default:
+            DPRINTF(MemoryAccess, "Read of size %i on address 0x%x\n",
+                    pkt->getSize(), pkt->getAddr());
+        }
+#endif
     }
     else if (pkt->isWrite()) {
         if (writeOK(pkt->req)) {
-            DPRINTF(MemoryAccess, "Performing Write of size %i on address 0x%x\n",
-                    pkt->getSize(), pkt->getAddr());
             memcpy(pmemAddr + pkt->getAddr() - params()->addrRange.start,
                    pkt->getPtr<uint8_t>(), pkt->getSize());
+#if TRACING_ON
+            switch (pkt->getSize()) {
+              case sizeof(uint64_t):
+                DPRINTF(MemoryAccess, "Write of size %i on address 0x%x data 0x%x\n",
+                        pkt->getSize(), pkt->getAddr(),pkt->get<uint64_t>());
+                break;
+              case sizeof(uint32_t):
+                DPRINTF(MemoryAccess, "Write of size %i on address 0x%x data 0x%x\n",
+                        pkt->getSize(), pkt->getAddr(),pkt->get<uint32_t>());
+                break;
+              case sizeof(uint16_t):
+                DPRINTF(MemoryAccess, "Write of size %i on address 0x%x data 0x%x\n",
+                        pkt->getSize(), pkt->getAddr(),pkt->get<uint16_t>());
+                break;
+              case sizeof(uint8_t):
+                DPRINTF(MemoryAccess, "Write of size %i on address 0x%x data 0x%x\n",
+                        pkt->getSize(), pkt->getAddr(),pkt->get<uint8_t>());
+                break;
+              default:
+                DPRINTF(MemoryAccess, "Write of size %i on address 0x%x\n",
+                        pkt->getSize(), pkt->getAddr());
+            }
+#endif
         }
     }
     else if (pkt->isInvalidate()) {
diff --git a/src/python/SConscript b/src/python/SConscript
index be6248bab..df1464809 100644
--- a/src/python/SConscript
+++ b/src/python/SConscript
@@ -98,18 +98,16 @@ pyzip_files.append('m5/defines.py')
 pyzip_files.append('m5/info.py')
 pyzip_files.append(join(env['ROOT'], 'util/pbs/jobfile.py'))
 
-env.Command(['swig/debug_wrap.cc', 'm5/internal/debug.py'],
-            'swig/debug.i',
-            '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} '
-            '-o ${TARGETS[0]} $SOURCES')
-
-env.Command(['swig/main_wrap.cc', 'm5/internal/main.py'],
-            'swig/main.i',
-            '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} '
-            '-o ${TARGETS[0]} $SOURCES')
-
-pyzip_dep_files.append('m5/internal/debug.py')
-pyzip_dep_files.append('m5/internal/main.py')
+def swig_it(basename):
+    env.Command(['swig/%s_wrap.cc' % basename, 'm5/internal/%s.py' % basename],
+                'swig/%s.i' % basename,
+                '$SWIG $SWIGFLAGS -outdir ${TARGETS[1].dir} '
+                '-o ${TARGETS[0]} $SOURCES')
+    pyzip_dep_files.append('m5/internal/%s.py' % basename)
+
+swig_it('main')
+swig_it('debug')
+swig_it('event')
 
 # Action function to build the zip archive.  Uses the PyZipFile module
 # included in the standard Python library.
diff --git a/src/python/m5/objects/BaseCPU.py b/src/python/m5/objects/BaseCPU.py
index 8037c90af..67a28a61e 100644
--- a/src/python/m5/objects/BaseCPU.py
+++ b/src/python/m5/objects/BaseCPU.py
@@ -41,7 +41,8 @@ class BaseCPU(SimObject):
         "terminate when all threads have reached this load count")
     max_loads_any_thread = Param.Counter(0,
         "terminate when any thread reaches this load count")
-    progress_interval = Param.Tick(0, "interval to print out the progress message")
+    progress_interval = Param.Tick(0,
+        "interval to print out the progress message")
 
     defer_registration = Param.Bool(False,
         "defer registration with system (for sampling)")
diff --git a/src/python/m5/objects/SparcTLB.py b/src/python/m5/objects/SparcTLB.py
index de732e8de..06d2a8231 100644
--- a/src/python/m5/objects/SparcTLB.py
+++ b/src/python/m5/objects/SparcTLB.py
@@ -11,4 +11,4 @@ class SparcDTB(SparcTLB):
 
 class SparcITB(SparcTLB):
     type = 'SparcITB'
-    size = 48
+    size = 64
diff --git a/src/python/swig/debug.i b/src/python/swig/debug.i
index 8da2974ca..b542e9f82 100644
--- a/src/python/swig/debug.i
+++ b/src/python/swig/debug.i
@@ -1,3 +1,33 @@
+/*
+ * 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: Nathan Binkert
+ */
+
 %module debug
 
 %{
diff --git a/src/python/swig/event.i b/src/python/swig/event.i
new file mode 100644
index 000000000..554c9fa0e
--- /dev/null
+++ b/src/python/swig/event.i
@@ -0,0 +1,54 @@
+/*
+ * 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: Nathan Binkert
+ */
+
+%module event
+
+%{
+#include "python/swig/pyevent.hh"
+
+inline void
+create(PyObject *object, Tick when)
+{
+    new PythonEvent(object, when);
+}
+%}
+
+%include "stdint.i"
+%include "sim/host.hh"
+
+%inline %{
+extern void create(PyObject *object, Tick when);
+%}
+
+%wrapper %{
+// fix up module name to reflect the fact that it's inside the m5 package
+#undef SWIG_name
+#define SWIG_name "m5.internal._event"
+%}
diff --git a/src/python/swig/init.hh b/src/python/swig/init.hh
new file mode 100644
index 000000000..23d2c19a9
--- /dev/null
+++ b/src/python/swig/init.hh
@@ -0,0 +1,36 @@
+/*
+ * 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: Nathan Binkert
+ */
+
+#ifndef __PYTHON_SWIG_INIT_HH__
+#define __PYTHON_SWIG_INIT_HH__
+
+void init_swig();
+
+#endif // __PYTHON_SWIG_INIT_HH__
diff --git a/src/python/swig/pyevent.cc b/src/python/swig/pyevent.cc
new file mode 100644
index 000000000..6fb7d3f17
--- /dev/null
+++ b/src/python/swig/pyevent.cc
@@ -0,0 +1,66 @@
+/*
+ * 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: Nathan Binkert
+ */
+
+#include <Python.h>
+
+#include "python/swig/pyevent.hh"
+
+PythonEvent::PythonEvent(PyObject *obj, Tick when, Priority priority)
+    : Event(&mainEventQueue, priority), object(obj)
+{
+    if (object == NULL)
+        panic("Passed in invalid object");
+
+    Py_INCREF(object);
+
+    setFlags(AutoDelete);
+    schedule(when);
+}
+
+PythonEvent::~PythonEvent()
+{
+    Py_DECREF(object);
+}
+
+void
+PythonEvent::process()
+{
+    PyObject *result;
+
+    result = PyObject_CallMethod(object, "process", "");
+
+    if (result) {
+        // Nothing to do just decrement the reference count
+        Py_DECREF(result);
+    } else {
+        // Somethign should be done to signal back to the main interpreter
+        // that there's been an exception.
+    }
+}
diff --git a/src/python/swig/pyevent.hh b/src/python/swig/pyevent.hh
new file mode 100644
index 000000000..16af85a84
--- /dev/null
+++ b/src/python/swig/pyevent.hh
@@ -0,0 +1,48 @@
+/*
+ * 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: Nathan Binkert
+ */
+
+#ifndef __PYTHON_SWIG_PYEVENT_HH__
+#define __PYTHON_SWIG_PYEVENT_HH__
+
+#include "sim/eventq.hh"
+
+class PythonEvent : public Event
+{
+  private:
+    PyObject *object;
+
+  public:
+    PythonEvent(PyObject *obj, Tick when, Priority priority = Default_Pri);
+    ~PythonEvent();
+
+    virtual void process();
+};
+
+#endif // __PYTHON_SWIG_PYEVENT_HH__
diff --git a/src/sim/main.cc b/src/sim/main.cc
index 17209ac20..04dbe1ef4 100644
--- a/src/sim/main.cc
+++ b/src/sim/main.cc
@@ -60,6 +60,7 @@
 #include "cpu/smt.hh"
 #include "mem/mem_object.hh"
 #include "mem/port.hh"
+#include "python/swig/init.hh"
 #include "sim/async.hh"
 #include "sim/builder.hh"
 #include "sim/host.hh"
@@ -117,11 +118,6 @@ abortHandler(int sigtype)
 #endif
 }
 
-extern "C" {
-void init_main();
-void init_debug();
-}
-
 int
 main(int argc, char **argv)
 {
@@ -159,8 +155,7 @@ main(int argc, char **argv)
     PySys_SetArgv(argc, argv);
 
     // initialize SWIG modules
-    init_main();
-    init_debug();
+    init_swig();
 
     PyRun_SimpleString("import m5.main");
     PyRun_SimpleString("m5.main.main()");
diff --git a/src/unittest/Makefile b/src/unittest/Makefile
index 1f0584066..e22b80b48 100644
--- a/src/unittest/Makefile
+++ b/src/unittest/Makefile
@@ -1,4 +1,4 @@
-# Copyright (c) 2006 The Regents of The University of Michigan
+# Copyright (c) 2006-2007 The Regents of The University of Michigan
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -47,48 +47,48 @@ base/traceflags.cc base/traceflags.hh: $(SRCDIR)/base/traceflags.py
 	cd base; \
 	$(PYTHON) $<
 
-bitvectest: test/bitvectest.cc
+bitvectest: unittest/bitvectest.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-circletest: test/circletest.cc base/circlebuf.cc
+circletest: unittest/circletest.cc base/circlebuf.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-cprintftest: test/cprintftest.cc base/cprintf.cc
+cprintftest: unittest/cprintftest.cc base/cprintf.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-initest: test/initest.cc base/str.cc base/inifile.cc base/cprintf.cc
+initest: unittest/initest.cc base/str.cc base/inifile.cc base/cprintf.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-lrutest: test/lru_test.cc
+lrutest: unittest/lru_test.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-nmtest: test/nmtest.cc base/output.cc base/hostinfo.cc base/cprintf.cc base/misc.cc base/loader/object_file.cc base/loader/symtab.cc base/misc.cc base/str.cc base/loader/aout_object.cc base/loader/ecoff_object.cc base/loader/elf_object.cc
+nmtest: unittest/nmtest.cc base/output.cc base/hostinfo.cc base/cprintf.cc base/misc.cc base/loader/object_file.cc base/loader/symtab.cc base/misc.cc base/str.cc base/loader/aout_object.cc base/loader/ecoff_object.cc base/loader/elf_object.cc
 	$(CXX) $(CCFLAGS) -I/n/ziff/z/binkertn/build/work/ALPHA_FS -lelf -o $@ $^
 
-offtest: test/offtest.cc
+offtest: unittest/offtest.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-rangetest: test/rangetest.cc base/range.cc base/str.cc
+rangetest: unittest/rangetest.cc base/range.cc base/str.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
 STATTEST+= base/cprintf.cc base/hostinfo.cc base/misc.cc base/mysql.cc
 STATTEST+= base/python.cc base/str.cc base/time.cc 
 STATTEST+= base/statistics.cc base/stats/mysql.cc base/stats/python.cc
 STATTEST+= base/stats/statdb.cc base/stats/text.cc base/stats/visit.cc
-STATTEST+= test/stattest.cc 
+STATTEST+= unittest/stattest.cc 
 stattest: $(STATTEST)
 	$(CXX) $(CCFLAGS) $(MYSQL) -o $@ $^ 
 
-strnumtest: test/strnumtest.cc base/str.cc
+strnumtest: unittest/strnumtest.cc base/str.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-symtest: test/symtest.cc base/misc.cc base/symtab.cc base/str.cc
+symtest: unittest/symtest.cc base/misc.cc base/symtab.cc base/str.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-tokentest: test/tokentest.cc base/str.cc
+tokentest: unittest/tokentest.cc base/str.cc
 	$(CXX) $(CCFLAGS) -o $@ $^
 
-TRACE+=test/tracetest.cc base/trace.cc base/trace_flags.cc base/cprintf.cc
+TRACE+=unittest/tracetest.cc base/trace.cc base/trace_flags.cc base/cprintf.cc
 TRACE+=base/str.cc base/misc.cc
 tracetest: $(TRACE)
 	$(CXX) $(CCFLAGS) -o $@ $^
diff --git a/src/unittest/cprintftest.cc b/src/unittest/cprintftest.cc
index 9c3eb0cd6..a454be05e 100644
--- a/src/unittest/cprintftest.cc
+++ b/src/unittest/cprintftest.cc
@@ -43,13 +43,11 @@ main()
     char foo[9];
     cprintf("%s\n", foo);
 
+    cprintf("%d\n", 'A');
     cprintf("%shits%%s + %smisses%%s\n", "test", "test");
     cprintf("%%s%-10s %c he went home \'\"%d %#o %#x %1.5f %1.2E\n",
             "hello", 'A', 1, 0xff, 0xfffffffffffffULL, 3.141592653589, 1.1e10);
 
-    cout << cformat("%s %#x %s\n") << "hello" << 0 << "foo 0\n";
-    cerr << cformat("%s %#x\n") << "hello" << 1 << "foo 1\n";
-
     cprintf("another test\n");
 
     stringstream buffer;
diff --git a/util/chkformat b/util/chkformat
new file mode 100755
index 000000000..52f5dba40
--- /dev/null
+++ b/util/chkformat
@@ -0,0 +1,168 @@
+#!/usr/bin/env python
+# 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: Nathan Binkert
+
+from getopt import getopt, GetoptError
+
+import re
+import sys
+
+tabsize = 8
+
+lead = re.compile(r'^([ \t])+')
+trail = re.compile(r'[ \t]+$')
+any_control = re.compile(r'\b(if|while|for)[ \t]*[(]')
+good_control = re.compile(r'\b(if|while|for) [(]')
+
+def linelen(line):
+    tabs = line.count('\t')
+    if not tabs:
+        return len(line)
+
+    count = 0
+    for c in line:
+        if c == '\t':
+            count += tabsize - count % tabsize
+        else:
+            count += 1
+
+    return count
+
+toolong = 0
+toolong80 = 0
+leadtabs = 0
+trailwhite = 0
+badcontrol = 0
+cret = 0
+
+def validate(filename, verbose, code):   
+    global toolong, toolong80, leadtabs, trailwhite, badcontrol, cret
+
+    def msg(lineno, line, message):
+        print '%s:%d>' % (filename, lineno + 1), message
+        if verbose > 2:
+            print line
+
+    def bad():
+        if code is not None:
+            sys.exit(code)
+
+    cpp = filename.endswith('.cc') or filename.endswith('.hh')
+    py = filename.endswith('.py')
+
+    if py + cpp != 1:
+        raise AttributeError, \
+              "I don't know how to deal with the file %s" % filename
+
+    try:
+        f = file(filename, 'r')
+    except OSError:
+        if verbose > 0:
+            print 'could not open file %s' % filename
+        bad()
+        return
+
+    for i,line in enumerate(f):
+        line = line.rstrip('\n')
+
+        # no carriage returns
+        if line.find('\r') != -1:
+            cret += 1
+            if verbose > 1:
+                msg(i, line, 'carriage return found')
+            bad()
+
+        # lines max out at 79 chars
+        llen = linelen(line)
+        if llen > 79:
+            toolong += 1
+            if llen == 80:
+                toolong80 += 1
+            if verbose > 1:
+                msg(i, line, 'line too long (%d chars)' % llen)
+            bad()
+
+        # no tabs used to indent
+        match = lead.search(line)
+        if match and match.group(1).find('\t') != -1:
+            leadtabs += 1
+            if verbose > 1:
+                msg(i, line, 'using tabs to indent')
+            bad()
+
+        # no trailing whitespace
+        if trail.search(line):
+            trailwhite +=1
+            if verbose > 1:
+                msg(i, line, 'trailing whitespace')
+            bad()
+
+        # for c++, exactly one space betwen if/while/for and (
+        if cpp:
+            match = any_control.search(line)
+            if match and not good_control.search(line):
+                badcontrol += 1
+                if verbose > 1:
+                    msg(i, line, 'improper spacing after %s' % match.group(1))
+                bad()
+
+if __name__ == '__main__':
+    progname = sys.argv[0]
+
+    def usage(code=None):
+        print >>sys.stderr, '''%s [-n] [-q] [-v] <filenames>''' % progname
+        if code is not None:
+            sys.exit(code)
+
+    try:
+        opts, args = getopt(sys.argv[1:], '-nv')
+    except GetoptError:
+        usage(2)
+
+    code = 1
+    verbose = 1
+    for opt,arg in opts:
+        if opt == '-n':
+            code = None
+        if opt == '-q':
+            verbose -= 1
+        if opt == '-v':
+            verbose += 1
+
+    for filename in args:
+        validate(filename, verbose=verbose, code=code)
+
+    if verbose > 0:
+        print '''\
+%d violations of lines over 79 chars. %d of which are 80 chars exactly.
+%d cases of whitespace at the end of a line.
+%d cases of tabs to indent.
+%d bad parens after if/while/for.
+%d carriage returns found.
+''' % (toolong, toolong80, trailwhite, leadtabs, badcontrol, cret)
+
diff --git a/util/compile b/util/compile
new file mode 100755
index 000000000..7f9b5d447
--- /dev/null
+++ b/util/compile
@@ -0,0 +1,323 @@
+#!/usr/bin/env python
+# 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: Nathan Binkert
+
+import os, re, sys
+from os.path import isdir, isfile, join as joinpath
+
+homedir = os.environ['HOME']
+
+def do_compile():
+    #
+    # Find SCons
+    #
+    search_dirs = [ joinpath(homedir, 'local/lib'), '/opt/local/lib',
+                    '/usr/local/lib', '/usr/lib' ]
+
+    if os.environ.has_key("SCONS_LIB_DIR"):
+        search_dirs.append(os.environ["SCONS_LIB_DIR"])
+
+    local = re.compile(r'^scons-local-([0-9]*)\.([0-9]*)\.([0-9]*)$')
+    standard = re.compile(r'^scons-([0-9]*)\.([0-9]*)\.([0-9]*)$')
+
+    scons_dirs = []
+    for dir in search_dirs:
+        if not isdir(dir):
+            continue
+
+        entries = os.listdir(dir)
+        for entry in entries:
+            if not entry.startswith('scons'):
+                continue
+
+            version = (0,0,0)
+            path = joinpath(dir, entry)
+
+            match = local.search(entry)
+            if not match:
+                match = standard.search(entry)
+
+            if match:
+                version = match.group(1), match.group(2), match.group(3)
+
+            scons_dirs.append((version, path))
+
+    scons_dirs.sort()
+    scons_dirs.reverse()
+
+    if not scons_dirs:
+        print >>sys.stderr, \
+              "could not find scons in the following dirs: %s" % search_dirs
+        sys.exit(1)
+
+    sys.path = [ scons_dirs[0][1] ] + sys.path
+
+    # invoke SCons
+    import SCons.Script
+    SCons.Script.main()
+
+#
+# do argument parsing
+#
+progname = sys.argv[0]
+
+import optparse
+
+usage = '''%prog [compile options] <version> [SCons options]
+
+%prog assumes that the user has a directory called ~/m5/<version> where
+the source tree resides, and a directory called ~/build, where %prog
+will create ~/build/<version> if it does not exist and build the resulting
+simulators there.
+
+If ~/build is set up in such a way that it points to a local disk on
+each host, compiles will be very efficient.  For example:
+~/build -> /z/<username>/.build  (Assuming that /z is a local disk and
+not NFS mounted, whereas your home directory is NFS mounted).
+'''
+version = '%prog 0.1'
+parser = optparse.OptionParser(usage=usage, version=version,
+                               formatter=optparse.TitledHelpFormatter())
+parser.disable_interspersed_args()
+
+# current option group
+group = None
+
+def set_group(*args, **kwargs):
+    '''set the current option group'''
+    global group
+    if not args and not kwargs:
+        group = None
+    else:
+        group = parser.add_option_group(*args, **kwargs)
+
+def add_option(*args, **kwargs):
+    if group:
+        return group.add_option(*args, **kwargs)
+    else:
+        return parser.add_option(*args, **kwargs)
+
+def bool_option(name, default, help):
+    '''add a boolean option called --name and --no-name.
+    Display help depending on which is the default'''
+
+    tname = '--%s' % name
+    fname = '--no-%s' % name
+    dest = name.replace('-', '_')
+    if default:
+        thelp = optparse.SUPPRESS_HELP
+        fhelp = help
+    else:
+        thelp = help
+        fhelp = optparse.SUPPRESS_HELP
+
+    add_option(tname, action="store_true", default=default, help=thelp)
+    add_option(fname, action="store_false", dest=dest, help=fhelp)
+
+add_option('-n', '--no-compile', default=False, action='store_true',
+           help="don't actually compile, just echo SCons command line")
+add_option('--everything', default=False, action='store_true',
+           help="compile everything that can be compiled")
+add_option('-E', "--experimental", action='store_true', default=False,
+           help="enable experimental builds")
+add_option('-v', "--verbose", default=False, action='store_true',
+           help="be verbose")
+          
+set_group("Output binary types")
+bool_option("debug", default=False, help="compile debug binaries")
+bool_option("opt", default=False, help="compile opt binaries")
+bool_option("fast", default=False, help="compile fast binaries")
+bool_option("prof", default=False, help="compile profile binaries")
+add_option('-a', "--all-bin", default=False, action='store_true',
+           help="compile debug, opt, and fast binaries")
+
+set_group("ISA options")
+bool_option("alpha", default=False, help="compile Alpha")
+bool_option("mips", default=False, help="compile MIPS")
+bool_option("sparc", default=False, help="compile SPARC")
+add_option('-i', "--all-isa", default=False, action='store_true',
+           help="compile all ISAs")
+
+set_group("Emulation options")
+bool_option("syscall", default=True,
+            help="Do not compile System Call Emulation mode")
+bool_option("fullsys", default=True,
+            help="Do not compile Full System mode")
+
+def usage(exitcode=None):
+    parser.print_help()
+    if exitcode is not None:
+        sys.exit(exitcode)
+
+(options, args) = parser.parse_args()
+
+if options.everything:
+    options.all_bin = True
+    options.prof = True
+    options.all_isa = True
+
+if options.all_bin:
+    options.debug = True
+    options.opt = True
+    options.fast = True
+
+binaries = []
+if options.debug:
+    binaries.append('m5.debug')
+if options.opt:
+    binaries.append('m5.opt')
+if options.fast:
+    binaries.append('m5.fast')
+if options.prof:
+    binaries.append('m5.prof')
+
+if not binaries:
+    binaries.append('m5.debug')
+
+if options.all_isa:
+    options.alpha = True
+    options.mips = True
+    options.sparc = True
+
+isas = []
+if options.alpha:
+    isas.append('alpha')
+if options.mips:
+    isas.append('mips')
+if options.sparc:
+    isas.append('sparc')
+
+if not isas:
+    isas.append('alpha')
+
+modes = []
+if options.syscall:
+    modes.append('syscall')
+if options.fullsys:
+    modes.append('fullsys')
+
+if not modes:
+    sys.exit("must specify at least one mode")
+
+#
+# Convert options into SCons command line arguments
+#
+
+# valid combinations of ISA and emulation mode
+valid = { ('alpha', 'syscall') : 'ALPHA_SE',
+          ('alpha', 'fullsys') : 'ALPHA_FS',
+          ('mips',  'syscall') : 'MIPS_SE',
+          ('sparc', 'syscall') : 'SPARC_SE' }
+
+# experimental combinations of ISA and emulation mode
+experiment = { ('mips', 'fullsys') : 'MIPS_FS',
+               ('sparc', 'fullsys') : 'SPARC_FS' }
+
+if options.experimental:
+    valid.update(experiment)
+
+builds = []
+for isa in isas:
+    for mode in modes:
+        try:
+            build = valid[(isa, mode)]
+            builds.append(build)
+        except KeyError:
+            pass
+
+if not builds:
+    sys.exit("must specify at least one valid combination of ISA and mode")
+
+if not args:
+    usage(2)
+
+version = args[0]
+del args[0]
+
+for bin in binaries:
+    for build in builds:
+        args.append('%s/%s' % (build, bin))
+
+#
+# set up compile
+#
+build_base = joinpath(homedir, 'build')
+m5_base = joinpath(homedir, 'm5')
+
+if not isdir(build_base):
+    sys.exit('build directory %s not found' % build_base)
+
+if not isdir(m5_base):
+    sys.exit('m5 base directory %s not found' % m5_base)
+
+m5_dir = joinpath(m5_base, version)
+if not isdir(m5_dir):
+    sys.exit('source directory %s not found' % m5_dir)
+
+# support M5 1.x
+oldstyle = isfile(joinpath(m5_dir, 'SConscript'))
+if oldstyle:
+    ext_dir = joinpath(m5_base, 'ext')
+    test_dir = joinpath(m5_base, 'test.' + version)
+
+    if not isdir(ext_dir):
+        sys.exit('ext directory not found at %s' % ext_dir)
+
+    if not isdir(test_dir):
+        sys.exit('test directory not found at %s' % test_dir)
+
+build_dir = joinpath(build_base, version)
+if not isdir(build_dir):
+    os.mkdir(build_dir)
+    # need some symlinks for m5 1.x
+    if oldstyle:
+        os.symlink(m5_dir, joinpath(build_dir, 'm5'))
+        os.symlink(ext_dir, joinpath(build_dir, 'ext'))
+        os.symlink(test_dir, joinpath(build_dir, 'test'))
+        os.symlink(joinpath(m5_dir, 'build', 'SConstruct'),
+                   joinpath(build_dir, 'SConstruct'))
+        os.symlink(joinpath(m5_dir, 'build', 'default_options'),
+                   joinpath(build_dir, 'default_options'))
+
+sys.argv = [ progname ]
+if oldstyle:
+    os.chdir(build_dir)
+    sys.argv.extend(args)
+else:
+    os.chdir(m5_dir)
+    for arg in args:
+        if not arg.startswith('-') and '=' not in arg:
+            arg = joinpath(build_dir, 'build', arg)
+        sys.argv.append(arg)
+
+if options.no_compile or options.verbose:
+    for arg in sys.argv[1:]:
+        print arg
+
+if not options.no_compile:
+    do_compile()
diff --git a/util/fixwhite b/util/fixwhite
new file mode 100755
index 000000000..3bc1ff0bc
--- /dev/null
+++ b/util/fixwhite
@@ -0,0 +1,83 @@
+#! /usr/bin/env python
+# 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: Nathan Binkert
+
+import re
+import os
+import sys
+from getopt import getopt, GetoptError
+
+tabs = re.compile(r'^[ \t]+')
+def fixwhite(filename, tabsize):
+    try:
+        f = file(filename, 'r+')
+    except OSError, msg:
+        print 'could not open file %s: %s' % (filename, msg)
+        return
+
+    lines = list(f)
+
+    f.seek(0)
+    f.truncate()
+    
+    for line in lines:
+        if tabs.search(line):
+            newline = ''
+            for i,c in enumerate(line):
+                if c == ' ':
+                    newline += ' '
+                elif c == '\t':
+                    newline += ' ' * (tabsize - len(newline) % tabsize)
+                else:
+                    newline += line[i:]
+                    break
+
+            line = newline
+
+        print >>f, line.rstrip()
+
+if __name__ == '__main__':
+    progname = sys.argv[0]
+
+    def usage(code=None):
+        print >>sys.stderr, '''%s [-t <tabsize>] <filenames>''' % progname
+        if code is not None:
+            sys.exit(code)
+
+    try:
+        opts, args = getopt(sys.argv[1:], '-t:')
+    except GetoptError:
+        usage(2)
+
+    tabsize = 8
+    for opt,arg in opts:
+        if opt == '-t':
+            tabsize = int(arg)
+
+    for filename in args:
+        fixwhite(filename, tabsize)