Practice Summary Of The Unit (22.3.1) - Addressing Modes, Instruction Set and Instruction Execution Flow
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Summary of the Unit

Practice - Summary of the Unit

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Practice Questions

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Question 1 Easy

What is the purpose of the Program Counter (PC)?

💡 Hint: Think about how the CPU determines which instruction to execute next.

Question 2 Easy

Define opcode in the context of instruction execution.

💡 Hint: Remember, it tells the CPU what to do.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the main role of the Instruction Register (IR) in the CPU?

Stores the address of the next instruction
Holds the current instruction being executed
Contains the results of the last operation

💡 Hint: Think about where instructions are kept while they are being processed.

Question 2

True or False: The opcode is part of the instruction that tells the CPU what operations to perform.

True
False

💡 Hint: Remember that every instruction has to tell the CPU what to do.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Explain how a CPU would handle a scenario where multiple interrupts occur as instructions are being executed.

💡 Hint: Consider the order of arrival and how the CPU would manage resources.

Challenge 2 Hard

Design a simple operation sequence involving fetching, decoding, and executing for a hypothetical instruction using both direct and indirect addressing.

💡 Hint: Think about how you can juxtapose direct and indirect processes.

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