Practice Stage 1: Program Counter Update (13.1.1) - Instruction Fetch and Execution

Practice: Stage 1: Program Counter Update

Lesson 13.1.1Instruction Fetch and Execution

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8 questions

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6 sample questions

Question 1.
What is the function of the Program Counter?
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Think about what happens to it during instruction fetching.
Question 2.
What does MAR stand for in CPU architecture?
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Recall its role in fetching instructions from memory.
3Question 3.
What does the Program Counter (PC) do?
- It fetches data from memory.
- It points to the address of the current instruction.
- It holds the output of executed instructions.
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Think about the role of PC in the instruction cycle.
4Question 4.
True or False: The Memory Address Register (MAR) holds the instruction to be executed.
- True
- False
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Remember what data the MAR tracks.
Question 5.
Suppose the initial value of the PC is 0x0010, explain the steps that occur when an instruction is fetched and how the PC value changes.
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Trace the role of the PC step-by-step.
Question 6.
Discuss the implications of a non-incrementing PC on program execution. How would this impact instruction flow?
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Think about what happens if instructions aren't moving forward.

4 more questions in this section. Enroll free to practise them all.