Practice Priority Assignment (27.3) - Interrupts and Processor Management
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Priority Assignment

Practice - Priority Assignment

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Practice Questions

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Question 1 Easy

What is an interrupt?

💡 Hint: Think about what happens in real-time operating systems.

Question 2 Easy

What does the interrupt enable flag do?

💡 Hint: Consider the implications of turning this flag on or off.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What does the interrupt enable flag do?

Allows the processor to respond to interrupts
Prevents processor interruptions
Resets all flags

💡 Hint: Think about its basic function.

Question 2

True or False: The program status word is solely managed by the CPU without programmer intervention.

True
False

💡 Hint: Consider who controls the flags.

3 more questions available

Challenge Problems

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Challenge 1 Hard

Design a pseudo-code for an interrupt service routine that correctly enables and disables interrupts based on a critical task.

💡 Hint: What are the essential steps an ISR must always take?

Challenge 2 Hard

Discuss the potential risks involved if a programmer forgets to enable interrupts after handling an ISR.

💡 Hint: Consider what could happen in real-time applications.

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