2.2.1. Unconditional Instructions

Try these first

1. 1.

   What is an unconditional jump?

   Hint

   Think about a direct switch in control flow.

2. 2.

   What does the zero flag indicate?

   Hint

   Focus on the outcome of previous calculations.

3. 3.

   What does the unconditional jump instruction do?

   • Redirects to a label based on the condition
   • Always executes a block without a condition
   • Redirects to a specified location if a flag is set

   Hint

   Think about what 'unconditional' implies.

4. 4.

   True or False: The zero flag is set when the outcome of a computation is non-zero.

   • True
   • False

   Hint

   Consider the definition of the zero flag.

5. 5.

   Write a simple assembly program snippet that demonstrates an unconditional jump leading to an infinite loop. Indicate how this could be corrected.

   Hint

   Think about loop control structures.

6. 6.

   Explain how overflow might occur in an addition operation and what flags would indicate this. Provide an example.

   Hint

   Consider the limits of your data types.