5.3.1. Push Operations Implementation

Try these first

1. 1.

   Define what a stack pointer is in the context of CPU architecture.

   Hint

   What does SP stand for in terms of registries?

2. 2.

   What does the push operation do?

   Hint

   Think of how you would 'push' items into a physical stack.

3. 3.

   What does the stack pointer indicate?

   • The next instruction to execute
   • The current location of the top of the stack
   • The last called procedure

   Hint

   SP is often used to refer to this in CPU architecture.

4. 4.

   True or False: Procedures can call other procedures.

   • True
   • False

   Hint

   Think about how functions can call other functions.

5. 5.

   Design a simple CPU architecture that correctly demonstrates how parameters are pushed onto the stack when a function is called. Describe the steps involved.

   Hint

   Think about what information must be preserved during a function call.

6. 6.

   Create a flowchart that illustrates the sequence of operations when returning from a nested procedure call.

   Hint

   Consider the steps in reverse order of how they were pushed.