Design a combinational circuit that adds one to a 4-bit binary number. For example, if the input of the circuit is 1101, the output is 1110. The circuit can be designed using four half-adders
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Step 1
A half-adder takes two inputs, A and B, and produces two outputs, the sum (S) and the carry (C). The sum is the XOR of A and B, and the carry is the AND of A and B. Here is the truth table for a half-adder: A | B | S | C -------------- 0 | 0 | 0 | 0 0 | 1 | 1 | Show more…
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