5.4.2. Upcoming Topics in CPU Execution

Try these first

1. 1.

   What is the first step in a procedure call?

   Hint

   Think about what happens before the program jumps to a new location.

2. 2.

   What does the stack pointer do?

   Hint

   Remember the stack analogy.

3. 3.

   What is the purpose of the stack pointer in CPU execution?

   • A. To execute instructions
   • B. To point to the top of the stack
   • C. To store the program counter

   Hint

   Think about its role in the stack structure.

4. 4.

   True or False: A return from a procedure will retrieve the saved program counter from the stack.

   • True
   • False

   Hint

   Consider the flow of execution after a procedure finishes.

5. 5.

   Analyze how context switching can lead to performance issues in CPU execution.

   Hint

   Reflect on how often a CPU may need to switch tasks.

6. 6.

   Devise a way in which the efficiency of nested procedure calls can be improved.

   Hint

   Think about how much data needs to be saved for each level of nesting.