Design an 4bit ALU using Combinantional Logic to obtain following operations.
| Control Input | Operation |
|---|---|
| 000 | 2's complement of A |
| 001 | 2's complement of B |
| 010 | A + B |
| 011 | A - B |
| 100 | Bitwise A and B |
| 101 | Bitwise A or B |
| 110 | A x B |
| 111 | Any one (We selected A mod B ??) |