diff --git a/Makefrag b/Makefrag
index 09f11ebc..f99d1999 100644
--- a/Makefrag
+++ b/Makefrag
@@ -10,6 +10,8 @@ CONFIG ?= DefaultConfig
 # TODO: For now must match rocketchip.Generator
 long_name = $(PROJECT).$(CONFIG)
 
+VLSI_MEM_GEN ?= $(base_dir)/scripts/vlsi_mem_gen
+
 CXX ?= g++
 CXXFLAGS := -O1
 JVM_MEMORY ?= 2G
diff --git a/emulator/Makefrag-verilator b/emulator/Makefrag-verilator
index c9af59f5..6b51e63c 100644
--- a/emulator/Makefrag-verilator
+++ b/emulator/Makefrag-verilator
@@ -2,7 +2,9 @@
 # Verilator Generation
 #--------------------------------------------------------------------
 firrtl = $(generated_dir)/$(long_name).fir
-verilog = $(generated_dir)/$(long_name).v
+verilog = \
+  $(generated_dir)/$(long_name).v \
+  $(generated_dir)/$(long_name).behav_srams.v \
 
 .SECONDARY: $(firrtl) $(verilog)
 
@@ -10,9 +12,14 @@ $(generated_dir)/%.fir $(generated_dir)/%.d: $(FIRRTL_JAR) $(chisel_srcs) $(boot
 	mkdir -p $(dir $@)
 	cd $(base_dir) && $(SBT) "run-main $(PROJECT).Generator $(generated_dir) $(PROJECT) $(MODEL) $(CFG_PROJECT) $(CONFIG)"
 
-%.v: %.fir $(FIRRTL_JAR)
+%.v %.conf: %.fir $(FIRRTL_JAR)
 	mkdir -p $(dir $@)
-	$(FIRRTL) $(patsubst %,-i %,$(filter %.fir,$^)) -o $@ -X verilog
+	$(FIRRTL) $(patsubst %,-i %,$(filter %.fir,$^)) -o $*.v -X verilog --infer-rw $(MODEL) --repl-seq-mem -c:$(MODEL):-o:$*.conf
+
+$(generated_dir)/$(long_name).behav_srams.v : $(generated_dir)/$(long_name).conf $(VLSI_MEM_GEN)
+	cd $(generated_dir) && \
+	$(VLSI_MEM_GEN) $(generated_dir)/$(long_name).conf > $@.tmp && \
+	mv -f $@.tmp $@
 
 # Build and install our own Verilator, to work around versionining issues.
 VERILATOR_VERSION=3.904
@@ -47,6 +54,7 @@ verilator: $(INSTALLED_VERILATOR)
 VERILATOR := $(INSTALLED_VERILATOR) --cc --exe
 VERILATOR_FLAGS := --top-module $(MODEL) \
   +define+PRINTF_COND=\$$c\(\"verbose\",\"\&\&\"\,\"done_reset\"\) \
+  +define+RANDOMIZE_GARBAGE_ASSIGN \
   +define+STOP_COND=\$$c\(\"done_reset\"\) --assert \
   --output-split 20000 \
   --output-split-cfuncs 20000 \
@@ -62,13 +70,13 @@ model_header_debug = $(generated_dir_debug)/$(long_name)/V$(MODEL).h
 $(emu): $(verilog) $(cppfiles) $(headers) $(INSTALLED_VERILATOR)
 	mkdir -p $(generated_dir)/$(long_name)
 	$(VERILATOR) $(VERILATOR_FLAGS) -Mdir $(generated_dir)/$(long_name) \
-	-o $(abspath $(sim_dir))/$@ $< $(cppfiles) -LDFLAGS "$(LDFLAGS)" \
+	-o $(abspath $(sim_dir))/$@ $(verilog) $(cppfiles) -LDFLAGS "$(LDFLAGS)" \
 	-CFLAGS "-I$(generated_dir) -include $(model_header)"
 	$(MAKE) VM_PARALLEL_BUILDS=1 -C $(generated_dir)/$(long_name) -f V$(MODEL).mk
 
 $(emu_debug): $(verilog) $(cppfiles) $(headers) $(generated_dir)/$(long_name).d $(INSTALLED_VERILATOR)
 	mkdir -p $(generated_dir_debug)/$(long_name)
 	$(VERILATOR) $(VERILATOR_FLAGS) -Mdir $(generated_dir_debug)/$(long_name)  --trace \
-	-o $(abspath $(sim_dir))/$@ $< $(cppfiles) -LDFLAGS "$(LDFLAGS)" \
+	-o $(abspath $(sim_dir))/$@ $(verilog) $(cppfiles) -LDFLAGS "$(LDFLAGS)" \
 	-CFLAGS "-I$(generated_dir_debug) -include $(model_header_debug)"
 	$(MAKE) VM_PARALLEL_BUILDS=1 -C $(generated_dir_debug)/$(long_name) -f V$(MODEL).mk
diff --git a/vsim/Makefile b/vsim/Makefile
index 31d3dd2b..ec59925c 100644
--- a/vsim/Makefile
+++ b/vsim/Makefile
@@ -11,7 +11,6 @@ default: all
 
 base_dir = $(abspath ..)
 generated_dir = $(abspath ./generated-src)
-VLSI_MEM_GEN ?= $(base_dir)/scripts/vlsi_mem_gen
 mem_gen = $(VLSI_MEM_GEN)
 sim_dir = .
 output_dir = $(sim_dir)/output