Practice Interrupt Service Routine (23.1.3) - Introduction to Interrupt
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Interrupt Service Routine

Practice - Interrupt Service Routine

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Practice Questions

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Question 1 Easy

What is an interrupt?

💡 Hint: Think of a scenario where something demands immediate attention.

Question 2 Easy

What does the Program Counter do?

💡 Hint: Consider what happens when a CPU executes multiple instructions in sequence.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary purpose of an Interrupt Service Routine?

To continue executing current instructions
To handle an interrupt
To define a new task

💡 Hint: Consider what the CPU does when it receives a signal it cannot ignore.

Question 2

True or False: The Program Counter must be incremented after every instruction before checking for interrupts.

True
False

💡 Hint: Think about the order of operations during instruction processing.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a hypothetical CPU flow and describe what happens in detail when an interrupt occurs during the execution of multiple instructions.

💡 Hint: Outline your flow step-by-step to visualize the CPU state transitions.

Challenge 2 Hard

Assume you have a set of instructions executing, and an interrupt occurs while processing a complex operation. Discuss the potential implications of this on instruction integrity.

💡 Hint: Think about what happens if you forget to save your place in a book before being interrupted.

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