8.2. Micro Operations

Try these first

1. 1.

   What does micro operation refer to?

   Hint

   Think of it as atomic steps in a larger process.

2. 2.

   What is the role of the Program Counter?

   Hint

   Consider it like a book's page number for instructions.

3. 3.

   What is the first step in the fetch stage?

   • Writing to the IR
   • Moving PC to MAR
   • Fetching data to MBR

   Hint

   Think about what determines the address being accessed.

4. 4.

   True or False: Clock grouping allows merging of dependent micro operations.

   • True
   • False

   Hint

   Remember the condition under which instructions can overlap.

5. 5.

   Design a sequence of micro operations for the instruction 'ADD R1, R2, R3' considering clock grouping.

   Hint

   Map out the steps and identify where optimizations can occur.

6. 6.

   Explain the impact of having conflicting micro operations in the CPU and how clock grouping can mitigate this.

   Hint

   Consider scenarios where data from one register is modified while another operation tries to read from it.