SOURCES := $(shell find -name \*.sv -o -name \*.cpp)
COLLATERAL := $(shell find -name \*.hex -o -name \*.svh)

OPTS ?=

sim: build/Vtop
	$<
.PHONY: sim

build/Vtop: $(SOURCES) $(COLLATERAL)
	@rm -rf verilator
	@mkdir -p build verilator
	verilator +1800-2017ext+sv -Wall -Wno-BLKSEQ -Wno-UNUSED -O3 -Ihdl $(OPTS) --Mdir verilator --trace --cc --build -j --exe --top-module top $(SOURCES)
	@ln -t build -f verilator/Vtop
	@rm -rf verilator

clean:
	rm -rf build verilator
.PHONY: clean