Discussion
Consider the following statements about three address code.
1. Each instruction names at most three addresses.
2. Temporaries are introduced for intermediate results.
3. The form is tied to a particular target instruction set.
Answer: D
Correct answer: 1 and 2 only
Statements 1 and 2 give the form correctly: at most three addresses per instruction, with temporaries introduced for intermediate results. Statement 3 denies the whole purpose of the representation - it is deliberately machine independent, which is what allows one optimiser and many back ends.
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