Practice Instruction Cycle And Micro-operations (6.1.3) - Control Unit

Practice: Instruction Cycle and Micro-operations

Lesson 6.1.3Control Unit

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9 questions

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6 sample questions

Question 1.
Define the instruction cycle.
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Think of the steps the CPU takes to execute an instruction.
Question 2.
What are micro-operations?
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Consider the steps outlined in the instruction cycle.
3Question 3.
What is the sequence of the instruction cycle?
- Decode
- Execute
- Fetch
- Fetch
- Decode
- Execute
- Execute
- Fetch
- Decode
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Remember the initial FDE acronym!
4Question 4.
True or False: Control signals are generated during the execution phase only.
- True
- False
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Think about when data movement begins.
Question 5.
Design a control unit for a hypothetical architecture that includes a dual-bus system capable of handling both memory and register transfers simultaneously.
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Review bus architecture effects on execution speed and efficiency within instruction cycles.
Question 6.
Evaluate how different macro instructions would break down into micro instructions and analyze the effect this has on control signal generation.
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Consider ADD, LOAD, and STORE instructions to analyze distinct microoperation sequences.

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