Multi-cycle datapath: performance
	Instruction		Cycles	Distribution
	type
	R-type		4	49%
	load		5	22%
	store		4	11%
	branch		3	16%
	jump		3	2%
	Average cycle time:
		0.49 * 4 + 0.22 * 5 + 0.11 * 4 + 0.16 * 3 + 0.02 * 3 = 4.03
		4.03/5 = 81% of critical path time (load)