24.2.1. Comprehension Objective

Try these first

1. 1.

   What is microprogramming?

   Hint

   Think about instruction execution in a CPU.

2. 2.

   Define branching in computer terms.

   Hint

   How do we decide where to go next in a program's execution?

3. 3.

   What is the primary function of microprogramming?

   • To manage memory
   • To execute conditional statements
   • To implement control logic
   • To speed up hardware

   Hint

   Focus on control mechanisms in CPU architecture.

4. 4.

   True or False: A horizontal control format allows quicker access to control signals than a vertical format.

   • True
   • False

   Hint

   Compare speed between horizontal and vertical designs.

5. 5.

   Design a simplified microprogram for a two-instruction CPU that executes addition and subtraction optimally, demonstrating the use of branching.

   Hint

   Map out the common steps first before identifying differences.

6. 6.

   Evaluate the impact of using a vertical control store format on the performance of a set of complex macro instructions.

   Hint

   Consider the access time for control signals.