13.4.1 - Summary of Instruction Execution Phases
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Practice Questions
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What does the Program Counter (PC) do?
💡 Hint: Think about how the CPU knows which instruction to execute next.
What is stored in the Instruction Register (IR)?
💡 Hint: What part of the execution process involves looking at the instruction?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of the Program Counter (PC)?
💡 Hint: Think about how the CPU processes instructions sequentially.
True or False: The Memory Data Register (MDR) holds current instructions being executed.
💡 Hint: Consider the role of memorized instructions versus data.
1 more question available
Challenge Problems
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If the Program Counter has a value of 5, what would it become after executing a fetch instruction? Explain the result.
💡 Hint: Consider how PC increments after each instruction cycle.
Illustrate how an 'ADD' instruction operates without accessing memory compared to a 'LOAD' instruction, emphasizing the role of registers.
💡 Hint: Focus on where each source of information comes from.
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