Practice Register Direct Addressing Mode (29.4.4) - Addressing Modes - Computer Organisation and Architecture

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6 sample questions

Question 1.
What does immediate addressing mean?
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Think about the example ADD 3.
Question 2.
What is direct addressing?
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Consider how you'd locate a book on a shelf.
3Question 3.
What type of addressing mode has the operand within the instruction itself?
- Immediate
- Direct
- Indirect
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Remember the example of ADD 5.
4Question 4.
In which addressing mode does the instruction point to a register directly?
- Register Addressing
- Direct Addressing
- Indirect Addressing
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Think about MOV R1, R2.
Question 5.
Explain how different addressing modes affect performance in a CPU. Provide examples of when each mode would be most beneficial.
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Think about how CPU instructions need to balance speed versus memory accessibility.
Question 6.
Design an instruction set that maximizes efficiency using the various addressing modes discussed. Identify trade-offs.
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Consider compiling a week’s worth of operations into an efficient assembly language.

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