20.3.5. Micro-program Memory Architecture

Try these first

1. 1.

   What is the primary purpose of a micro-programmed control unit?

   Hint

   Think about the flexibility compared to hardwired control.

2. 2.

   Define micro-program memory.

   Hint

   What kind of memory is dedicated to these instructions?

3. 3.

   What is a key advantage of micro-programmed control units?

   • A. They are faster than hardwired units
   • B. They allow for flexible control signal generation
   • C. They require more hardware
   • D. They do not require memory

   Hint

   Think about the adaptability of micro-programs.

4. 4.

   True or False: Micro-programmed control units can execute operations faster than hardwired control units.

   • True
   • False

   Hint

   Consider the performance aspects of both systems.

5. 5.

   Design a basic micro-programmed control unit outline for a simple arithmetic operation involving addition and subtraction. Include the micro instructions and control signals.

   Hint

   Think about how each operation requires specific control signals and the order they must be executed.

6. 6.

   Using a scenario, explain how jumping between memory locations affects the overall execution speed of a micro-program. What are the trade-offs?

   Hint

   Consider how traditional programming might work in a similar fashion.