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Compiler Design and Construction | BSc.CSIT (TU) Question Paper 2073 | Sixth Semester

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Compiler Design and Construction 2073Sixth Semester | Tribhuvan University (TU)
Old Question | Question Paper | Year: 2073,
Subject: Compiler Design and Construction,
Computer Science and Information Technology (CSc.352)

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Full Marks: 60 | Pass Marks: 24 | Time: 3 hours.
Candidates are required to give their answer in their own words as far as practicable. The questions are of equal value.

Attempt all questions. (10×6=60)

  1. Draw block diagram to represent different phases of compiler. Explain different steps in analysis phase. (6)
  2. Convert the following RE to DFA directly.
    (a + b)*ab                                                                                                                                                      (6)
  3. Find first and follow all of the non terminals in the following grammar.
    A -> TEE ->+ TE | εT -> XY         Y -> *XY | εX -> (A) | a                                                                                (6)
  4. Differentiate between LR(0) and LR(1) algorithm.                                                                                          (6)
  5. Construct LR(1) parse table for
    X -> pX | q         S -> XX                                                                                                                                 (6)
  6. How can syntax directed definition be used in type checking?                                                                     (6)
  7. What is the theme of code optimization? Why is code optimization important in compiler?                       (6)
  8. Explain about peephole optimization with example.                                                                                      (6)
  9. What are the advantages of intermediate code? Describe various representation of intermediate code.     (6)
  10. Discuss the importance of symbol table in compiler. How is it manipulated in the different phases of compilation?                                                                                                                                                    (6)
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