Practice Displacement Addressing Mode Example (31.3.4) - Introduction to Addressing Modes

Practice: Displacement Addressing Mode Example

Lesson 31.3.4Introduction to Addressing Modes

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10 questions

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6 sample questions

Question 1.
What is the value of R1 after the first operation if it starts at 1?
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Increase the initial value by the displacement.
Question 2.
If R5 starts at 0, what will it contain after the first addition from memory?
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Consider the effective address calculated using R1.
3Question 3.
What does displacement addressing mode utilize for effective address calculation?
- Only Register content
- Only Displacement value
- Registry + Displacement
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Remember the formula for effective address calculation.
4Question 4.
True or False: In displacement addressing, the effective address can sometimes point to invalid memory if R1 is not managed correctly.
- True
- False
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Reflect on how registers are incremented.
Question 5.
If a processor's instruction set uses 32-bit addresses and R1 points to 0x1000 with a displacement of 4, what would be the effective address? Explain your reasoning.
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Break down the hexadecimal addition step.
Question 6.
Demonstrate how changing the displacement affects the total sum accumulated in R5 if R1 cycles through the first five array indexes starting at 1 with a displacement of 2.
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List the effective addresses sequentially.

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