Practice - State Flow During Instruction Execution
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Practice Questions
Test your understanding with targeted questions
What is the main advantage of interrupt-driven I/O over programmed I/O?
💡 Hint: Think about what happens during the waiting period.
Define an Interrupt Service Routine.
💡 Hint: What does it do when an interrupt occurs?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a primary benefit of interrupt-driven I/O?
💡 Hint: Consider how the CPU behaves during I/O operations.
True or False: The Program Status Word needs to be restored after executing an ISR.
💡 Hint: What does PSW include that is essential for execution?
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Challenge Problems
Push your limits with advanced challenges
Design a simple CPU model that uses both programmed I/O and interrupt-driven I/O for different tasks. Discuss which scenarios are most appropriate for each method.
💡 Hint: Consider the efficiency needed in different contexts.
Discuss the implications of failing to properly restore the CPU context after an interrupt. What are potential real-world effects?
💡 Hint: Think about how critical data consistency is.
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