22.3.2. Effect of Condition Codes

Try these first

1. 1.

   What does the Control Function Field do?

   Hint

   Think about how it influences the next instruction execution.

2. 2.

   What happens when the condition code is '11'?

   Hint

   Focus on what the code signifies.

3. 3.

   What is the default action when the condition select code is '11'?

   • Jump to the next address
   • Increment the program counter
   • Do nothing

   Hint

   Remember what '11' means in terms of program control.

4. 4.

   True or False: The Branch Address Field specifies the address to jump to if conditions are met.

   • True
   • False

   Hint

   Think about the function of the Branch Address Field.

5. 5.

   Create a flowchart showing how the condition select field influences the program counter based on different condition codes. Include examples like '00', '01', and '11'.

   Hint

   Visualize how the code affects the actions of the program counter.

6. 6.

   Discuss how varying the condition codes alters the overall instruction execution sequence in a microprogrammed control unit. Provide a concrete example.

   Hint

   Consider past examples where conditions led to jumps versus increments.