MODULE topcounter
	SUBMODULE bcd_to_seven_segment
		INSTANCE BCD4
	SUBMODULE bcd_to_seven_segment
		INSTANCE BCD3
	SUBMODULE bcd_to_seven_segment
		INSTANCE BCD2
	SUBMODULE bcd_to_seven_segment
		INSTANCE BCD1
	SUBMODULE bcd_counter
		INSTANCE COUNTER1