Question: Intel IA-32 processors have special instructions for dedicated I/O operations, as de- scribed in Part III of Chapter 3. Motorola 680X0 processors use only memory-mapped

Intel IA-32 processors have special instructions for dedicated I/O operations, as de- scribed in Part III of Chapter 3. Motorola 680X0 processors use only memory-mapped I/O. What are the advantages and disadvantages of memory-mapped I/O compared to dedicated I/O?

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