Question: The 4 - bit opcode input decides what the ALU does. For example, if the opcode is 0 0 1 1 , the output is

The 4-bit opcode input decides what the ALU does. For example, if the opcode is 0011, the output is the OR-ing of a and b. The additional input to the ALU, cin, is used only in the addition operation.

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