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Next State/Output Table

Here is the next state/output table for the vending machine example (from ELM, Page 178).  

Present	next	next	next	release	return all	return
state	state	state	state	candy	coins	change
s0	s0 if coin=0	s1 if coin=1	s5 if coin = 0	0	0	0
	and return=0	and return = 0	and return = 1
s1	s0 if sum<75	s2 if sum=75	s3 if sum>75	0	0	0
s2	s0	-	-	1	0	0
s3	s4 if change	s5 if change	-	0	0	0
	available = 1	available = 0	-
s4	s2	-	-	0	0	1
s5	s0	-	-	0	1	0

The left four columns specify the next state function f, and the right three columns specify the output function (Moore-type).

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