Question: Given reg [3:0] A = 4'b1101; reg [2:0] B = 3'b111; reg signed [3:0] C = 4'b1101; reg signed [2:0] D = 3'b111; reg signed

Given
reg [3:0] A = 4'b1101;
reg [2:0] B = 3'b111;
reg signed [3:0] C = 4'b1101;
reg signed [2:0] D = 3'b111;
reg signed [7:0] S;


Evaluate
i.  S = A + B;
ii.  S = A + B + 0;
iii. S = C + D;
iv. S = C + D + 0;
v.  S = A + D;
vi. S = A + D + 0;

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