13.4. Conclusion and Next Steps

Try these first

1. 1.

   Name the two primary registers involved in instruction fetching.

   Hint

   Think about where instructions and their addresses are stored.

2. 2.

   What does the control signal do?

   Hint

   Consider its role in directing operations.

3. 3.

   What does the Program Counter (PC) do?

   • Fetches instructions
   • Keeps track of the next instruction address
   • Stores data temporarily

   Hint

   It tells you where the CPU needs to go next.

4. 4.

   True or False: The Instruction Register (IR) holds the next instruction to be executed.

   • True
   • False

   Hint

   Consider the role of the IR in the execution process.

5. 5.

   Design an instruction sequence for the CPU that involves both loading data and performing an addition. Illustrate how you would draw the control signals for each step.

   Hint

   Think about what signals you'd need to ensure each operation executes smoothly.

6. 6.

   How would additional complexity, like a conditional instruction, impact the control signals compared to a simple load operation? Provide specific examples.

   Hint

   Consider the decision-making processes that influence control signal pathways.