Practice Stage 6: Complete Instruction Execution (13.1.6) - Instruction Fetch and Execution

Practice: Stage 6: Complete Instruction Execution

Lesson 13.1.6Instruction Fetch and Execution

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9 questions

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6 sample questions

Question 1.
What does the Instruction Register (IR) hold?
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Think about what happens right after an instruction is fetched.
Question 2.
What is the role of the Program Counter (PC)?
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What keeps track of which instruction will be executed next?
3Question 3.
What is the primary function of the Instruction Register?
- Holds the current instruction
- Stores data temporarily
- Increments the program counter
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What part of the CPU directly deals with executing commands?
4Question 4.
Control signals are used to coordinate CPU operations. True or False?
- True
- False
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Think about what ensures orderly processing of multiple tasks.
Question 5.
Design a detailed overview of how the CPU handles fetching the instruction to execute 'SUB R2, R3', and explain the role of each register involved in the process.
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Break down the steps one by one focusing on what happens at each stage.
Question 6.
Evaluate the efficiency impacts of using registers over memory access in CPU operations observable in 'LOAD R1, M' vs 'ADD R2, R3'. How does this affect execution time?
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Consider how often each operation accesses memory to weigh the execution time differences.

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