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The operation of the ALU used in the processor designed in class is controlled using the operation bus with the signals: ANOP, AOP and AADD;

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The operation of the ALU used in the processor designed in class is controlled using the operation bus with the signals: ANOP, AOP and AADD; see Figure 2. Explain in words how the tri-state buffers can be replaced with an appropriate multiplexer and show the (binary) signals that will replace the ANOP, AOP and AADD signals. (GA 4.6) 8 marks 0000 0001 IR ANOP AADD AOP Opr. Bus Figure 2: ALU control

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