11.3. Control Signals and Synchronization

Try these first

1. 1.

   What does the MOV instruction do?

   Hint

   Think of how data shifts from memory to CPU.

2. 2.

   What is the role of the Memory Data Register?

   Hint

   Consider it as a buffer for memory operations.

3. 3.

   What does the Memory Function Complete (MFC) signal indicate?

   • Memory operation is incomplete
   • Memory operation is complete
   • No memory operation was attempted

   Hint

   It's a signal validating the end of memory tasks.

4. 4.

   True or False: The MDR can store values before they are written to memory.

   • True
   • False

   Hint

   Think about a mailbox for memory operations.

5. 5.

   Experiment with designing a hypothetical CPU architecture focusing on the control signals needed for efficient data transfer. Identify potential bottlenecks.

   Hint

   Visualize the flow between components and where delays may occur.

6. 6.

   Critically evaluate the role of MFC in a multi-core CPU architecture. How would the synchronization issues differ from a single-core CPU?

   Hint

   Think about how tasks are managed by different cores and their communication.