21.1.2. Micro-Program Memory Architecture

Try these first

1. 1.

   What does the micro-programmed control unit do?

   Hint

   Think about how it operates in executing instructions.

2. 2.

   Name one condition flag used in branching.

   Hint

   These flags help in decision making during execution.

3. 3.

   What signifies a successful instruction fetch in a micro-program?

   • Control signals are generated
   • Memory is incremented
   • It fails

   Hint

   Think about what is required to perform an instruction.

4. 4.

   In branching, which type of condition typically guides the next instruction?

   • True
   • False

   Hint

   Recall the types of conditions used for branching.

5. 5.

   Design a branching scenario for a micro program: describe how you would organize the condition checks and the branch addresses.

   Hint

   Think of how each component influences the flow of operations.

6. 6.

   Evaluate the effectiveness of using a micro-programmed control unit in modern CPUs versus hardwired control units.

   Hint

   Consider the trade-offs between speed and flexibility.