Practice Instruction Execution (22.3) - Addressing Modes, Instruction Set and Instruction Execution Flow

Practice: Instruction Execution

Lesson 22.3Addressing Modes, Instruction Set and Instruction Execution Flow

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9 questions

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6 sample questions

Question 1.
What does the Program Counter (PC) do in instruction execution?
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Think about which part of the CPU tracks the next instruction.
Question 2.
What is the role of the Instruction Register (IR)?
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Remember, it's where the instruction is stored after fetching.
3Question 3.
What is the purpose of the Program Counter (PC)?
- To execute instructions
- To store current execution state
- To hold the address of the next instruction
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What keeps track of where the CPU is in the instruction sequence?
4Question 4.
True or False: The instruction register keeps track of the program counter.
- True
- False
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Think about the separate roles of CPU registers.
Question 5.
In a computer system, how does using indirect addressing improve memory utilization? Discuss scenarios where it would be essential.
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Consider why direct addressing may worry about limits.
Question 6.
Devise a scenario with multiple interrupts occurring during a complex instruction execution. Describe how the CPU handles these interrupts and ensures that the instruction flow is maintained.
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Think about the layering of tasks and execution.

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