16.4. Program Counter and Instruction Fetching

Try these first

1. 1.

   What is the purpose of the Program Counter (PC)?

   Hint

   Think about how the PC relates to instruction flow.

2. 2.

   Differentiate between unconditional and conditional jumps.

   Hint

   Remember the behavior of both types of jumps.

3. 3.

   What type of jump always executes?

   • Conditional Jump
   • Unconditional Jump
   • Both

   Hint

   Think about how each type of jump operates.

4. 4.

   True or False: The Program Counter (PC) is incremented after every instruction fetch.

   • True
   • False

   Hint

   Remember the function of jumps.

5. 5.

   Consider a situation where a program requires frequent jumps between tasks. Propose a solution for managing the PC efficiently.

   Hint

   Think about how tasks are managed and how returns might be handled.

6. 6.

   Explain how a compiler could optimize jump instructions in a program. Discuss techniques that might be applied.

   Hint

   Consider how efficiency and redundancy play a role in instruction sets.