part a:  Netlist. for all 3, include testcode
part b: essay
part c: report statistics: and get the tdp, explain...
part d: attach two waveforms

include waveforms for inputs and outputs...

...

Waveform 1
added/subtracter

input a (hexadecimal)
input b (hexadaecimal)
sum (hex)
z
n
v

Waveform 2
Comparison
input a (hexadecimal)
input b (hexadaecimal)
op1 z
op2 n
op3 v
cmpo