Your test bench design is:

In your test bench design, please let L$0,$ L$1,$ L$2,$ L$3$ to go through $"0000","0001",0010",$

$0011,0100,0101,0110,0111,1000,1001,1010,1011,1100,1101,$

$"1110","1111",$ each at a period of $100ns.$ Do this for COMP $=\text{'}0\text{'}$ first, and then let COMP

$=\text{'}1\text{'}.$

The result waveforms $($COMPS $=\text{'}0\text{'})$ are:

Please select the signals to be simulated in the following order: L$0,$ L$1,$ L$2,$ L$3,$ COMP, L$4,$

L$5,$ L$6,$ L$7.$

The result waveforms $($COMPS $=\text{'}1\text{'})$ are: