26.6. Comparison of Macro and Micro Program Execution

Try these first

1. 1.

   What is a macro instruction?

   Hint

   Think about instructions that bundle tasks.

2. 2.

   Give an example of a micro instruction.

   Hint

   Consider fundamental operations that happen inside the CPU.

3. 3.

   What defines an explicit jump in programming?

   • A jump that is conditionally executed.
   • A direct instruction to jump to a specific label.
   • A jump that is inferred based on state flags.

   Hint

   Contrast this with conditional actions.

4. 4.

   True or False: Implicit jumps are always documented within the macro instruction.

   • True
   • False

   Hint

   Reflect on how documentations are handled.

5. 5.

   Design a micro routine that incorporates both explicit and implicit jumps for a multi-step computation.

   Hint

   Map out your program flow before coding.

6. 6.

   Analyze a given macro instruction and identify where optimization could eliminate redundant micro instructions.

   Hint

   Identify the commonalities in constraints.