Practice Summary Of Instruction Execution Phases (13.4.1) - Instruction Fetch and Execution

Practice: Summary of Instruction Execution Phases

Lesson 13.4.1Instruction Fetch and Execution

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9 questions

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6 sample questions

Question 1.
What does the Program Counter (PC) do?
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Think about how the CPU knows which instruction to execute next.
Question 2.
What is stored in the Instruction Register (IR)?
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What part of the execution process involves looking at the instruction?
3Question 3.
What is the purpose of the Program Counter (PC)?
- To execute an instruction
- To store data
- To track the address of the next instruction
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Think about how the CPU processes instructions sequentially.
4Question 4.
True or False: The Memory Data Register (MDR) holds current instructions being executed.
- True
- False
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Consider the role of memorized instructions versus data.
Question 5.
If the Program Counter has a value of 5, what would it become after executing a fetch instruction? Explain the result.
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Consider how PC increments after each instruction cycle.
Question 6.
Illustrate how an 'ADD' instruction operates without accessing memory compared to a 'LOAD' instruction, emphasizing the role of registers.
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Focus on where each source of information comes from.

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