diff --git a/scripts/vivado.mk b/scripts/vivado.mk
index db8056c..660893a 100644
--- a/scripts/vivado.mk
+++ b/scripts/vivado.mk
@@ -37,7 +37,7 @@
 ###################################################################
 
 # phony targets
-.PHONY: fpga vivado tmpclean clean distclean
+.PHONY: fpga vivado sim sim-gui simclean tmpclean clean distclean
 
 # prevent make from deleting intermediate files and reports
 .PRECIOUS: %.xpr %.bit %.bin %.ltx %.xsa %.mcs %.prm
@@ -55,6 +55,14 @@ uniq_base = $(if $1,$(call uniq_base,$(foreach f,$1,$(if $(filter-out $(notdir $
 SYN_FILES := $(call uniq_base,$(call process_f_files,$(SYN_FILES)))
 INC_FILES := $(call uniq_base,$(call process_f_files,$(INC_FILES)))
 
+# simulation parameters
+SIM_TOP ?= $(FPGA_TOP)_tb
+TB_FILES ?=
+SIM_FILES ?= $(SYN_FILES) $(TB_FILES)
+SIM_DEFS ?= $(DEFS)
+SIM_RUNTIME ?= all
+
+
 ###################################################################
 # Main Targets
 #
@@ -149,3 +157,27 @@ $(PROJECT).bit $(PROJECT).bin $(PROJECT).ltx $(PROJECT).xsa: $(PROJECT).runs/imp
 	cp -pv $(PROJECT).runs/impl_1/$(PROJECT).bin rev/$(PROJECT)_rev$$COUNT.bin; \
 	if [ -e $(PROJECT).runs/impl_1/$(PROJECT).ltx ]; then cp -pv $(PROJECT).runs/impl_1/$(PROJECT).ltx rev/$(PROJECT)_rev$$COUNT.ltx; fi; \
 	if [ -e $(PROJECT).xsa ]; then cp -pv $(PROJECT).xsa rev/$(PROJECT)_rev$$COUNT.xsa; fi
+
+###################################################################
+# Simulation targets
+###################################################################
+
+gen_ip:
+	echo "open_project $(PROJECT).xpr" > gen_ip.tcl
+	echo "generate_target all [get_ips *]" >> gen_ip.tcl
+	vivado -mode batch -source gen_ip.tcl
+
+
+sim: $(PROJECT).xpr gen_ip
+	echo "open_project $(PROJECT).xpr" > run_sim.tcl
+	echo "add_files -fileset sim_1 $(TB_FILES)" >> run_sim.tcl
+	echo "set_property top $(SIM_TOP) [get_filesets sim_1]" >> run_sim.tcl
+	echo "update_compile_order -fileset sources_1" >> run_sim.tcl
+	echo "update_compile_order -fileset sim_1" >> run_sim.tcl
+	echo "launch_simulation" >> run_sim.tcl
+	echo "run all" >> run_sim.tcl
+	vivado -mode batch -source run_sim.tcl
+
+simclean:
+	-rm -rf xsim.dir *.wdb *.pb *.jou *.log *.vcd *.ltx
+	-rm -f defines_sim.v