5.4.1. Summary of Module and CPU Architecture Design

Try these first

1. 1.

   What is the role of the stack pointer in CPU operations?

   Hint

   Think about how it helps manage memory for function calls.

2. 2.

   What information is included in the context when a procedure is called?

   Hint

   Consider what needs to be restored upon returning from a procedure.

3. 3.

   What does a stack pointer do?

   • It points to the top of the stack
   • It stores the program counter
   • It saves the context of a procedure

   Hint

   Consider its role in managing function calls.

4. 4.

   True or False: The context saved during a procedure call includes the program counter.

   • True
   • False

   Hint

   Reflect on what needs to be restored on exit.

5. 5.

   Describe in detail the process of calling a procedure and returning, using both the stack and the stack pointer in your explanation.

   Hint

   Focus on the order of operations and how memory is managed.

6. 6.

   What are the potential consequences of not restoring the stack pointer correctly after nested procedure calls?

   Hint

   Consider how the stack structure supports flow control in programs.