Practice Stage 4: Instruction Execution (13.1.4) - Instruction Fetch and Execution

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9 questions

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6 sample questions

Question 1.
What role does the Program Counter play in instruction execution?
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Think about where the CPU looks next.
Question 2.
What does the Instruction Register contain?
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It's the command being processed by the CPU.
3Question 3.
What is the first phase of instruction execution?
- Decode Phase
- Fetch Phase
- Execute Phase
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Think about where it all begins in CPU operations.
4Question 4.
True or False: The Instruction Register contains the next instruction to execute.
- True
- False
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Remember what happens after fetching.
Question 5.
Design a flowchart that outlines the steps for executing an instruction like LOAD R1, M, including control signal statuses.
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Remember to include all phases: Fetch, Decode, Execute, and Store.
Question 6.
Explain how the CPU distinguishes between different types of instructions (like LOAD vs. ADD) during the decode phase.
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Look at how the structure of an instruction helps in identification.

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