Practice Opcode and Operand Structure - 31.2.2 | 31. Introduction to Addressing Modes | Computer Organisation and Architecture - Vol 1
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31.2.2 - Opcode and Operand Structure

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the 'opcode' in an instruction signify?

💡 Hint: Think about what part of the instruction tells the CPU what to do.

Question 2

Easy

How do you calculate the effective memory location given R1 = 2?

💡 Hint: Remember the operation: R1 + offset usually gives the effective address.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does the term 'effective address' refer to?

💡 Hint: Think about how you arrive at the address used for accessing data.

Question 2

True or False: Indirect addressing refers to directly accessing the operand's memory location.

  • True
  • False

💡 Hint: Remember how this mode differs from direct addressing.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

You have a series of multi-word instructions that are dependent on indirect addressing. What are the potential pitfalls one might encounter in managing the program counter?

💡 Hint: Think about what happens if PC doesn't advance correctly during indirect memory access.

Question 2

If an architecture allows displacement addressing, how would you modify an instruction to reference an array located at a certain offset from a base address stored in a register?

💡 Hint: Reflect on how you’d use a combination of two numbers to find the final memory address.

Challenge and get performance evaluation