20.4.3. Synthesis Objective

Try these first

1. 1.

   What is the primary purpose of micro instructions?

   Hint

   Think about how tasks are broken down into smaller steps.

2. 2.

   Define what control signals are.

   Hint

   Consider what signals tell the computer's components to do.

3. 3.

   What is the main advantage of micro-programmed control units over hardwired?

   • Speed
   • Flexibility
   • Simplicity

   Hint

   Think about adaptability in programming versus hardware.

4. 4.

   Micro instructions are used to __________.

   Hint

   Recall the breakdown concept of tasks.

5. 5.

   Design a simple micro-programmed control unit structure for an ADD operation, specifying each required component.

   Hint

   Think about what components ensure each operation in the ADD process.

6. 6.

   Discuss how conditional jumps might be implemented in micro-programming compared to hardwired controls.

   Hint

   Consider decision-making differences between programmable and fixed systems.