Practice - Instruction Cycle
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Practice Questions
Test your understanding with targeted questions
What is the purpose of the Program Counter?
💡 Hint: Think about the flow of instruction execution.
What does the execute phase involve?
💡 Hint: Consider what the CPU does with the instruction.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the first step in the instruction cycle?
💡 Hint: It's the phase before executing anything.
True or False: The opcode is part of the instruction that tells the processor what operation to perform.
💡 Hint: Think about what is contained in an instruction.
3 more questions available
Challenge Problems
Push your limits with advanced challenges
Given the program sequence: LDA 940, ADD 941, STA 941. Calculate the total time for the program if each fetch takes 3 cycles and each execute takes 4 cycles.
💡 Hint: Consider the cycles for both fetching and executing and sum them.
Explain how the change in opcode from 'ADD M' to 'SUB M' would affect the contents of the Accumulator.
💡 Hint: Think about the mathematical operations represented by the opcode.
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Reference links
Supplementary resources to enhance your learning experience.
- Computer Architecture - Instruction Cycle
- Instruction Format and Phases of Instruction Cycle
- A Brief Introduction to Computer Architecture
- CPU Registers: A Resource Overview
- Basic CPU Operations Explained: Fetch-Execute Cycle
- Instruction Execution in Computer Architecture
- Understanding Fetch & Execute Process
- How Instruction Formats Work
- The Role of ALU in CPU Execution