24.4.1 - Fetching and Decoding Instructions
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What does the MPC do during instruction fetching?
💡 Hint: Think about where the microinstructions are stored.
What is the purpose of the Instruction Register (IR)?
💡 Hint: What do we need to decode an instruction?
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does MPC stand for?
💡 Hint: MPC is involved in memory fetching.
True or False: The Op-Code is directly related to the operation being fetched.
💡 Hint: Consider the function of Op-Code in instruction execution.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a microprogram that incorporates branching for both addition and subtraction operations, illustrating how common sequences can be reused.
💡 Hint: Think about what would be common before performing operations.
Evaluate a scenario where the instruction register fetches an invalid instruction. Discuss how the control unit responds and what optimizations could prevent such situations.
💡 Hint: Consider how common checks can ensure valid commands.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.