diff --git a/Makefrag b/Makefrag
index d8a7bb58..95710458 100644
--- a/Makefrag
+++ b/Makefrag
@@ -1,6 +1,6 @@
 # Makefile snippet used by emulator/vlsi/fpga backends
 
-MODEL := ReferenceChipTop
+MODEL := Top
 CXX := g++
 CXXFLAGS := -O2
 
diff --git a/chisel b/chisel
index f07a7ac6..c4a063ab 160000
--- a/chisel
+++ b/chisel
@@ -1 +1 @@
-Subproject commit f07a7ac65cc07f59ac0d0b010e4ce10bc8a37101
+Subproject commit c4a063aba7a39c937592946b45b8f189aaedfbbc
diff --git a/csrc/emulator.cc b/csrc/emulator.cc
index f0f6c9bb..20a8d049 100644
--- a/csrc/emulator.cc
+++ b/csrc/emulator.cc
@@ -97,6 +97,7 @@ int main(int argc, char** argv)
   // reset for a few cycles to support pipelined reset
   tile.Top__io_host_in_valid = LIT<1>(0);
   tile.Top__io_host_out_ready = LIT<1>(0);
+  tile.Top__io_mem_backup_en = LIT<1>(0);
   for (int i = 0; i < 10; i++)
   {
     tile.clock_lo(LIT<1>(1));
@@ -133,9 +134,12 @@ int main(int argc, char** argv)
 
     tile.clock_lo(LIT<1>(0));
 
-    htif_phy.tick(tile.Top__io_host_in_ready.lo_word(),
-                  tile.Top__io_host_out_valid.lo_word(),
-                  tile.Top__io_host_out_bits.lo_word());
+    if (tile.Top__io_host_clk_edge.to_bool())
+    {
+      htif_phy.tick(tile.Top__io_host_in_ready.lo_word(),
+                    tile.Top__io_host_out_valid.lo_word(),
+                    tile.Top__io_host_out_bits.lo_word());
+    }
 
   
     if (tile.Top__io_debug_error_mode.lo_word())
@@ -175,8 +179,7 @@ int main(int argc, char** argv)
         str[pos] = 0; \
         fputs(str, vcdfile); \
       } while(0)
-      dump_disasm(tile.Top_Tile_cpu_dpath__id_reg_inst_shadow.lo_word(), "NDISASM_IF");
-      dump_disasm(tile.Top_Tile_cpu_dpath__id_reg_inst.lo_word(), "NDISASM_ID");
+      dump_disasm(tile.Top_Tile_cpu_dpath__id_inst.lo_word(), "NDISASM_ID");
       dump_disasm(ex_reg_inst, "NDISASM_EX");
       dump_disasm(mem_reg_inst, "NDISASM_MEM");
 
@@ -196,7 +199,7 @@ int main(int argc, char** argv)
     mem_reg_rs1 = tile.Top_Tile_cpu_dpath__ex_reg_rs1.lo_word();
     mem_reg_rs2 = tile.Top_Tile_cpu_dpath__ex_reg_rs2.lo_word();
 
-    ex_reg_inst = tile.Top_Tile_cpu_dpath__id_reg_inst.lo_word();
+    ex_reg_inst = tile.Top_Tile_cpu_dpath__id_inst.lo_word();
 
     tile.clock_hi(LIT<1>(0));
     trace_count++;
diff --git a/dramsim2 b/dramsim2
index d0045b18..0b3ee679 160000
--- a/dramsim2
+++ b/dramsim2
@@ -1 +1 @@
-Subproject commit d0045b18ce34b350139a43c95c9e432f4c6e43a5
+Subproject commit 0b3ee6799a523fc40973dae8dc967ece6f2e3bb9
diff --git a/emulator/Makefile b/emulator/Makefile
index d88b6680..dea78bb7 100644
--- a/emulator/Makefile
+++ b/emulator/Makefile
@@ -14,10 +14,10 @@ CXXFLAGS := $(CXXFLAGS) -I$(DRAMSIM2_PATH) -L$(DRAMSIM2_PATH) -ldramsim -Wl,-rpa
 DRAMSIM2_LIB := libdramsim.so
 
 generated-src/$(MODEL).cpp: $(basedir)/riscv-rocket/src/*.scala $(basedir)/riscv-hwacha/src/*.scala $(basedir)/chisel/src/main/scala/* $(basedir)/uncore/src/*.scala
-	cd $(basedir)/sbt && $(SBT) "project rocket" "run rocket.Top --backend c --noIoDebug --targetDir ../emulator/generated-src"
+	cd $(basedir)/sbt && $(SBT) "project referencechip" "run ReferenceChip.Top --backend c --noIoDebug --targetDir ../emulator/generated-src"
 
 generated-src-debug/$(MODEL).cpp: $(basedir)/riscv-rocket/src/*.scala $(basedir)/riscv-hwacha/src/*.scala $(basedir)/chisel/src/main/scala/* $(basedir)/uncore/src/*.scala
-	cd $(basedir)/sbt && $(SBT) "project rocket" "run rocket.Top --backend c --debug --vcd --targetDir ../emulator/generated-src-debug"
+	cd $(basedir)/sbt && $(SBT) "project referencechip" "run ReferenceChip.Top --backend c --debug --vcd --targetDir ../emulator/generated-src-debug"
 
 $(MODEL).o: %.o: generated-src/%.cpp
 	$(CXX) $(CXXFLAGS) -Igenerated-src -c -o $@ $<
diff --git a/hardfloat b/hardfloat
index eae83800..ada8b49d 160000
--- a/hardfloat
+++ b/hardfloat
@@ -1 +1 @@
-Subproject commit eae838000e2f897594f75bfff4a3a74ab993ab2d
+Subproject commit ada8b49d451176f3d08e3cc08e30ff2659d2803d
diff --git a/riscv-rocket b/riscv-rocket
index 2bc0aa2d..12da72a5 160000
--- a/riscv-rocket
+++ b/riscv-rocket
@@ -1 +1 @@
-Subproject commit 2bc0aa2d52893d01886b5a644852aa7dbaf5a4c8
+Subproject commit 12da72a5a6fcb9d33d8f3ceaedc8281c4849fd57
diff --git a/src/main/scala/RocketChip.scala b/src/main/scala/RocketChip.scala
index bb8354a5..4df7e6c3 100644
--- a/src/main/scala/RocketChip.scala
+++ b/src/main/scala/RocketChip.scala
@@ -25,7 +25,7 @@ class ReferenceChipBackend extends VerilogBackend
 
   def addMemPin(c: Component) = {
     for (node <- Component.nodes) {
-      if (node.isInstanceOf[Mem[ _ ]] && node.component != null && node.asInstanceOf[Mem[_]].inferSeqRead) {
+      if (node.isInstanceOf[Mem[ _ ]] && node.component != null && node.asInstanceOf[Mem[_]].seqRead) {
         val init = Bool(INPUT)
         init.setName("init")
         node.inputs += init
@@ -67,27 +67,27 @@ class ReferenceChipBackend extends VerilogBackend
   transforms += ((c: Component) => addMemPin(c))
 }
 
-class OuterMemorySystem(ntiles: Int, co: CoherencePolicyWithUncached, resetSignal: Bool = null) extends Component(resetSignal)
+class OuterMemorySystem(htif_width: Int)(implicit conf: UncoreConfiguration) extends Component
 {
   val io = new Bundle {
-    val tiles = Vec(ntiles) { new ioTileLink() }.flip
+    val tiles = Vec(conf.ntiles) { new ioTileLink() }.flip
     val htif = new ioTileLink().flip
-    val mem_backup = new ioMemSerialized
+    val mem_backup = new ioMemSerialized(htif_width)
     val mem_backup_en = Bool(INPUT)
     val mem = new ioMemPipe
   }
 
   import rocket.Constants._
-  val hub = new CoherenceHubBroadcast(NTILES+1, co)
+  val hub = new CoherenceHubBroadcast()(conf.copy(ntiles = conf.ntiles+1))
   val llc_tag_leaf = Mem(1024, seqRead = true) { Bits(width = 72) }
   val llc_data_leaf = Mem(4096, seqRead = true) { Bits(width = 64) }
   val llc = new DRAMSideLLC(512, 8, 4, llc_tag_leaf, llc_data_leaf)
-  val mem_serdes = new MemSerdes
+  val mem_serdes = new MemSerdes(htif_width)
 
-  for (i <- 0 until NTILES) {
+  for (i <- 0 until conf.ntiles) {
     hub.io.tiles(i) <> io.tiles(i)
   }
-  hub.io.tiles(NTILES) <> io.htif
+  hub.io.tiles(conf.ntiles) <> io.htif
 
   llc.io.cpu.req_cmd <> Queue(hub.io.mem.req_cmd)
   llc.io.cpu.req_data <> Queue(hub.io.mem.req_data, REFILL_CYCLES)
@@ -116,34 +116,26 @@ class OuterMemorySystem(ntiles: Int, co: CoherencePolicyWithUncached, resetSigna
   io.mem_backup <> mem_serdes.io.narrow
 }
 
-class Uncore(htif_width: Int, ntiles: Int, co: CoherencePolicyWithUncached) extends Component
+class Uncore(htif_width: Int)(implicit conf: UncoreConfiguration) extends Component
 {
   val io = new Bundle {
     val debug = new ioDebug()
     val host = new ioHost(htif_width)
-    val host_clk = Bool(OUTPUT)
-    val mem_backup = new ioMemSerialized
+    val mem_backup = new ioMemSerialized(htif_width)
     val mem_backup_en = Bool(INPUT)
-    val mem_backup_clk = Bool(OUTPUT)
     val mem = new ioMemPipe
-    val tiles = Vec(ntiles) { new ioTileLink() }.flip
-    val htif = Vec(ntiles) { new ioHTIF() }.flip
-    val uncore_reset = Bool(OUTPUT)
+    val tiles = Vec(conf.ntiles) { new ioTileLink() }.flip
+    val htif = Vec(conf.ntiles) { new ioHTIF(conf.ntiles) }.flip
   }
 
-  import rocket.Constants._
-  val htif = new rocketHTIF(htif_width, NTILES, co)
+  val htif = new rocketHTIF(htif_width)
+  htif.io.cpu <> io.htif
 
-  for (i <- 0 until NTILES) {
-    htif.io.cpu(i) <> io.htif(i)
-  }
-
-  val outmemsys = new OuterMemorySystem(ntiles, co)
+  val outmemsys = new OuterMemorySystem(htif_width)
   outmemsys.io.tiles <> io.tiles
   outmemsys.io.htif <> htif.io.mem
   io.mem <> outmemsys.io.mem
   outmemsys.io.mem_backup_en <> io.mem_backup_en
-  io.uncore_reset := htif.io.cpu(NTILES-1).reset
 
   // pad out the HTIF using a divided clock
   val hio = (new slowIO(8)) { Bits(width = htif_width+1) }
@@ -165,13 +157,13 @@ class Uncore(htif_width: Int, ntiles: Int, co: CoherencePolicyWithUncached) exte
   htif.io.host.in.valid := hio.io.in_fast.valid && !hio.io.in_fast.bits(htif_width)
   htif.io.host.in.bits := hio.io.in_fast.bits
   hio.io.in_fast.ready := Mux(hio.io.in_fast.bits(htif_width), Bool(true), htif.io.host.in.ready)
-  io.host_clk := hio.io.clk_slow
+  io.host.clk := hio.io.clk_slow
+  io.host.clk_edge := Reg(io.host.clk && !Reg(io.host.clk))
 }
 
 class ioTop(htif_width: Int) extends Bundle  {
   val debug   = new rocket.ioDebug();
   val host    = new rocket.ioHost(htif_width);
-  val host_clk = Bool(OUTPUT)
   val mem_backup_en = Bool(INPUT)
   val in_mem_rdy = Bool(OUTPUT)
   val in_mem_val = Bool(INPUT)
@@ -180,10 +172,22 @@ class ioTop(htif_width: Int) extends Bundle  {
   val mem     = new uncore.ioMem
 }
 
-class ReferenceChipTop extends Component {
-  val clkdiv = 8
-  import rocket.Constants._
+object DummyTopLevelConstants extends uncore.constants.CoherenceConfigConstants {
+  val NTILES = 1
+  val HTIF_WIDTH = 16
+  val ENABLE_SHARING = true
+  val ENABLE_CLEAN_EXCLUSIVE = true
+}
+import DummyTopLevelConstants._
 
+class MemDessert extends Component {
+  val io = new MemDesserIO(HTIF_WIDTH)
+  val x = new MemDesser(HTIF_WIDTH)
+  io.narrow <> x.io.narrow
+  io.wide <> x.io.wide
+}
+
+class Top extends Component {
   val co =  if(ENABLE_SHARING) {
               if(ENABLE_CLEAN_EXCLUSIVE) new MESICoherence
               else new MSICoherence
@@ -192,15 +196,19 @@ class ReferenceChipTop extends Component {
               else new MICoherence
             }
 
+  implicit val uconf = UncoreConfiguration(NTILES, log2Up(NTILES)+1, co)
+
   val io = new ioTop(HTIF_WIDTH)
 
-  val uncore = new Uncore(HTIF_WIDTH, NTILES, co)
+  val uncore = new Uncore(HTIF_WIDTH)
 
   var error_mode = Bool(false)
-  for (i <-0 until NTILES) {
+  for (i <- 0 until uconf.ntiles) {
     val hl = uncore.io.htif(i)
     val tl = uncore.io.tiles(i)
-    val tile = new Tile(co, resetSignal = hl.reset)
+
+    implicit val rconf = RocketConfiguration(NTILES, co)
+    val tile = new Tile(resetSignal = hl.reset)
 
     tile.io.host.reset := Reg(Reg(hl.reset))
     tile.io.host.pcr_req <> Queue(hl.pcr_req)
@@ -221,7 +229,6 @@ class ReferenceChipTop extends Component {
   }
 
   io.host <> uncore.io.host
-  io.host_clk := uncore.io.host_clk
 
   uncore.io.mem_backup.resp.valid := io.in_mem_val
 
diff --git a/uncore b/uncore
index 3603d224..4c1d5186 160000
--- a/uncore
+++ b/uncore
@@ -1 +1 @@
-Subproject commit 3603d22434caada0cb84ab46d9e51e79cb644de1
+Subproject commit 4c1d5186e13b6782049317747742786850f3778c