Question: Alyssa P . Hacker's snail from our text has a daughter with a Mealy machine FSM brain. Recall that the snail crawls from left to

Alyssa P

.

Hacker's snail from our text has a daughter with a Mealy machine FSM brain. Recall that the snail crawls from left to right along a paper tape containing a sequence of

1'

s and O

'

.

On each clock cycle, the snail crawls to the next bit. The daughter snail smiles when the last four bits that it has crawled over are

1101 .

Sketch the state transition diagram for this happy snail using as few states as possible. The input A is the bit underneath the snail's antennae. The output Y is TRUE when the snail smiles.Write a Combined state transition and output table.

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