18.2. Design of Hardwired Controlled Control Unit

Try these first

1. 1.

   What is a hardwired control unit?

   Hint

   Think about the hardware aspect.

2. 2.

   What does the instruction register do?

   Hint

   Consider its role in instruction processing.

3. 3.

   What is the main advantage of a hardwired control unit?

   • Flexibility
   • Speed
   • Complexity

   Hint

   Think about how hardware responds.

4. 4.

   True or False: Control signals in a hardwired control unit can be easily modified.

   • True
   • False

   Hint

   Consider if they can adapt to new commands.

5. 5.

   Design an FSM for a hardwired control unit handling both load and store instructions. Describe the states and transitions.

   Hint

   Consider how you can differentiate between load and store operations in your FSM.

6. 6.

   Analyze a scenario where a hardwired control unit fails to adapt to a new instruction set. Explain the implications.

   Hint

   Think about what flexibility means in the context of hardware.