Practice Decode (4.8.2) - Addressing Techniques and Control Unit Design
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Decode

Practice - Decode

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does the Fetch step involve?

💡 Hint: Think about where the instruction is stored before it's used.

Question 2 Easy

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

💡 Hint: What keeps track of where the CPU should go next?

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the purpose of decoding in a CPU?

To store data
To interpret instructions
To execute code

💡 Hint: Think about what happens after an instruction is fetched.

Question 2

True or False: The Instruction Register holds the next instruction the CPU will execute.

True
False

💡 Hint: Remember which instruction is in the IR!

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Create an example of a simple instruction that uses direct addressing. Describe each step of the micro-operations performed by the CPU.

💡 Hint: Focus on the flow of operations: which step comes first and what is the final result?

Challenge 2 Hard

Analyze what might go wrong if a CPU mistakenly decodes an instruction as an addition when it was meant to be a subtraction.

💡 Hint: Think about the implications on data and overall functionality.

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Reference links

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