Practice Knowledge Objective (29.3.1) - Addressing Modes - Computer Organisation and Architecture

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6 sample questions

Question 1.
What is immediate addressing?
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Think about accessing data within the instruction itself.
Question 2.
Provide an example of direct addressing.
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Consider the structure of an instruction.
3Question 3.
What is the primary advantage of immediate addressing?
- A. Smaller instruction size
- B. Faster operand fetching
- C. Flexibility in operand size
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Remember how immediate data is accessed.
4Question 4.
In indirect addressing, how many memory accesses are typically needed?
- A. One
- B. Two
- C. Three
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Think about the steps to get the operand.
Question 5.
Create an instruction sequence that uses immediate, direct, and indirect addressing modes to perform a series of calculations.
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Think about how these addressing methods impact instruction size and speed.
Question 6.
Explain how you would optimize a program that currently relies heavily on indirect addressing.
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Focus on the benefits of fast register access over slower memory access.

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