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A quadruple representation of three address code records

  • A.an operator, two operands and a result field
  • B.an operator and three operand fields with no result
  • C.four operands with the operator implied by position
  • D.the four machine instructions that implement the operation

Answer: A

Correct answer: an operator, two operands and a result field

The four fields give the quadruple its name, and the explicit result field is what makes it robust: each instruction names its own destination, so instructions can be moved, deleted or reordered without disturbing anything that refers to them.

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