Finite state machines: implementing
	Step 4: Implement a circuit to generate
			the control signals
		Copy last 4 columns to ROM
		Connect inputs and outputs
	q1	q0	x	q1+	q0+	z1	z0	D1	T0
	0	0	0	1	0	0	1	1	0
	0	0	1	0	1	0	1	0	1
	0	1	0	0	1	1	1	0	0
	0	1	1	1	0	1	1	1	1
	1	0	0	0	1	1	1	0	1
	1	0	1	0	0	1	1	0	0
	1	1	0	d	d	d	d	d	d
	1	1	1	d	d	d	d	d	d