Question: Using Verilog or VHDL programming, design and implement a digital system to perform addition or subtraction based on the choice of the user. You may

Using Verilog or VHDL programming, design and implement a digital system to perform addition or subtraction based on the choice of the user. You may consider the system to have two 4-bit inputs (i.e. A and B) and two outputs (C and D),
here D is a 4-bit binary number and C is one bit. There should be an additional input to choose the operation (add or subtract!).

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