Question: 2. Assuming we are using a 2-function ALU which adds if the control input is 0 and subtracts B from A otherwise, and the

2. Assuming we are using a 2-function ALU which adds if the

 

2. Assuming we are using a 2-function ALU which adds if the control input is 0 and subtracts B from A otherwise, and the input X is an 8-bit signed (twos complement) number, determine what the following circuit does: X- Obviously, you need to say what the output/function of the circuit is at a high level, not "this sends X and 0 to an ALU,.....

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