29.2.4. Instruction Register

Try these first

1. 1.

   What is the role of the instruction register?

   Hint

   Think about its name and what it does.

2. 2.

   How many buses are in a three-bus architecture?

   Hint

   Look at the architecture name.

3. 3.

   What is a primary function of the instruction register?

   • Store data
   • Hold the current instruction
   • Transfer data

   Hint

   Think about what the register name suggests.

4. 4.

   True or False: A three-bus architecture requires temporary registers to store data.

   • True
   • False

   Hint

   Consider how data moves between components.

5. 5.

   Explain how the three-bus architecture can lead to increased speed in instruction processing compared to a single bus architecture. Include examples of where delays could occur in a single-bus setup.

   Hint

   Think about the sequential nature of single bus operations.

6. 6.

   Given the interconnections in a three-bus architecture, analyze how a failure in one bus would affect the overall CPU function. What are alternative pathways available?

   Hint

   Consider how the redundancy of multiple buses creates robustness.