Using logic gates, design a circuit that has a capability to perform 4 bit binary addition or subtraction based on the choice of the user. The circuit should accept decimal numbers from the users and...

Extracted text: Using logic gates, design a circuit that has a capability to perform 4 bit binary addition or subtraction based on the choice of the user. The circuit should accept decimal numbers from the users and the sum will be displayed in a seven segment. Test the designed circuit in a simulation and submit screenshots of sample inputs and outputs. Include in your submission your KMAP Solutions, truth tables and sample manual calculations.