Practice Stage 3: Loading Instruction Into Register (13.1.3) - Instruction Fetch and Execution

Practice: Stage 3: Loading Instruction into Register

Lesson 13.1.3Instruction Fetch and Execution

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11 questions

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6 sample questions

Question 1.
What does the Program Counter (PC) do?
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Think about how instructions are executed sequentially.
Question 2.
What is the function of the Instruction Register (IR)?
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Consider what happens before an instruction executes.
3Question 3.
What is the purpose of the Memory Data Register?
- A. Store the program counter
- B. Store the current instruction
- C. Temporarily hold data between memory and processor
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Think about what a register like MDR is meant to do.
4Question 4.
True or False: The instruction register directly executes the instructions.
- True
- False
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Consider the roles of different components within the CPU.
Question 5.
Describe how the instruction fetching process would change if the architecture involved multiple buses instead of a single bus.
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Think about how having more paths would affect efficiency and processing time.
Question 6.
Analyze a hypothetical situation where the instruction register malfunctions. What impact would this have on the CPU's operation?
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Consider the role of the IR in the overall function of the CPU.

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