Practice Three Address Instruction Format (25.3.1)

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6 sample questions

Question 1.
What is the purpose of data transfer instructions?
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Think about how data is accessed in a program.
Question 2.
In a three-address instruction, how many operands are there?
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Visualize what a three-address instruction might look like in code.
3Question 3.
What does a three-address instruction format typically include?
- One destination and two sources
- Two destinations and one source
- Three sources
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Recall the structure of this instruction format.
4Question 4.
Do one-address instructions typically assume a default accumulator?
- True
- False
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Think about how instructions are simplified in such formats.
Question 5.
Create a sequence of three-address instructions to compute the formula A + B - (C * D).
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Think about how to break down the operations step-by-step.
Question 6.
Explain how you would convert a series of operations from three-address to two-address instructions, considering efficiency.
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Look at how you can minimize the operations by reusing operands.

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