16.2.2. Conditional and Unconditional Jump Instructions

Try these first

1. 1.

   What does an unconditional jump instruction do?

   Hint

   Think about whether conditions play a role or not.

2. 2.

   Define what a temporary register does.

   Hint

   Consider it as a short-term holder for data.

3. 3.

   What is the primary function of an unconditional jump instruction?

   • Alter flow based on flags
   • Always jump to the specified address
   • Do nothing

   Hint

   Think about whether conditions influence this type of jump.

4. 4.

   True or False: A conditional jump will always execute.

   • True
   • False

   Hint

   Recall the definition of conditional jumps.

5. 5.

   Imagine a scenario where you have an initial PC at memory address 50. You execute 'JUMP 70', but prior to this, the instruction sets the zero flag. What should the next address for PC be after executing a conditional jump if the flag is not zero?

   Hint

   Think about how the conditional check affects jumps.

6. 6.

   Consider a program using both types of jumps. Describe how an unconditional jump can potentially lead to an infinite loop if misused?

   Hint

   Reflect on control flow prohibiting endless execution.