A custom processor outputs an $8-$bit unsigned output average $($avg$)$ of the most recent

two $8-$bit unsigned data input samples $($I$).$ The data input is sampled when a single$-$bit

input $S$ changes from $0$ to $1$ as shown in the HLSM figure below. Hint: $S$ is an input to

the controller part of the custom processor.

Using the RTL design process:

a$.$ Create a Datapath. Hint: step $2$A$.(15$ points$)$

b$.$ Connect the Datapath to a controller. Hint: step $2$B$.(10$ points$)$