26.2. Execution of Macro Instructions

Try these first

1. 1.

   What is a macro instruction?

   Hint

   Think about how multiple commands can be combined.

2. 2.

   Define control signals in a CPU.

   Hint

   What do they control within the CPU?

3. 3.

   What role do micro instructions play in executing macro instructions?

   • They are optional
   • They provide the steps for execution
   • They compile the code

   Hint

   Consider what happens behind the scenes.

4. 4.

   True or false: An implicit jump is directly specified in a macro instruction.

   • True
   • False

   Hint

   Think about how automatic actions are taken.

5. 5.

   Given a sequence of macro instructions with both explicit and implicit jumps, diagram the corresponding control signals that would be activated for each step.

   Hint

   Break down the instructions into each individual step.

6. 6.

   Explain the optimization benefits of shared micro instructions in systems with multiple similar macro instructions.

   Hint

   Consider how reducing repeated code can streamline processes.