Practice Logical Instructions (2.2.3) - Microprocessor Architectures: 8085 and 8086
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Logical Instructions

Practice - Logical Instructions

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Practice Questions

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Question 1 Easy

What does the ANA instruction do?

💡 Hint: Think about how data is processed in binary.

Question 2 Easy

How does CMP affect the flags?

💡 Hint: Consider what checking does without changing the original values.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the ORA instruction do?

It performs a bitwise AND operation.
It performs a bitwise OR operation.
It compares two values.

💡 Hint: Think about how the OR operation works.

Question 2

True or False: The CMP instruction modifies the accumulator.

True
False

💡 Hint: Focus on what `CMP` actually implies for the accumulator.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Write a small program in assembly to check if a number stored in memory is odd or even using logical instructions. Explain how you would set up the conditions based on the flags.

💡 Hint: Consider how the binary representation influences even and odd determination.

Challenge 2 Hard

Design a logical function in assembly that toggles all bits of a register. Make use of XOR effectively for this task and explain the process.

💡 Hint: Recall the characteristics of XOR regarding transformations.

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