Q.1. Design a parameterized circuit that have two N-bit un-signed inputs A and B. The N-bit output Y = |A - B|. Test your circuit with 3 sets of inputs; one with A>B, another with A=B, and another with A
Q.2. Use the above module in another module that calculates an 2N-bit output C;
C = |A2 - B2| = (A+B) * |A - B|
Instantiate a copy of the module in Q.1. to calculate |A - B| and test this module with the same sets of inputs as in Q.1.
To instantiate a module within another module: Module_name instance_name #(parameter1 value, parameter 2 value, ...) (port1, port2, ...) ;