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Which of the following is not an intermediate code form?

  1. Syntax trees
  2. Three address codes
  3. Quadrupules
  4. Post fix Notation
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These are different forms of representing intermediate code but Quadruples used for repsenting three- address code. So answer is c.
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Ans is C 

Intermediate codes are machine independent codes, but they are close to machine instructions.

 he given program in a source language is converted to an equivalent program in an intermediate language by the intermediate code generator.

intermediate code has the following property – simple enough to be Translated to assembly code . complex enough to capture the complication of high level language

The intermediate code can be represented in the form of postfix notation, syntax tree, directed acyclic graph (DAG), three-address code.Out of which 3 address code is  most important  and it can be represented by Quadrupules , triples or indirect triples.

 

http://www.facweb.iitkgp.ac.in/~niloy/COURSE/Autumn2006/Compiler/notes/IC3002.pdf

https://www.geeksforgeeks.org/intermediate-code-generation-in-compiler-design/

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