4.1.4. Example of C Program with Subroutine

Try these first

1. 1.

   What is a subroutine?

   Hint

   Think about why we need to organize code into smaller parts.

2. 2.

   What does the program counter do?

   Hint

   Consider how the CPU knows where to go next.

3. 3.

   What does a subroutine allow in programming?

   • Redundancy
   • Reusability
   • Complexity

   Hint

   Consider the role of functions in reducing repeating code.

4. 4.

   True or False: An unconditional jump can only happen if a condition is met.

   • True
   • False

   Hint

   Think about what happens without any prerequisites.

5. 5.

   Create a C program that calculates the Fibonacci sequence using recursion. Explain the stack operations with each call.

   Hint

   Consider how each call requires its own state saved on the stack.

6. 6.

   Describe potential issues in stack management when overly deep recursion occurs. Provide examples.

   Hint

   Think about the limits of stack storage.