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2003 Course Principles of Compiler Design

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Total No. of Questions : 12] P1375 [Total No. of Pages :3 [3764] - 414 B.E. (Computer Engineering) PRINCIPLES OF COMPILER DESIGN (2003 Course) Time : 3 Hours] [Max. Marks:100 Instructions to the candidates: 1) Answers to the two sections should be written in separate books. 2) Neat diagrams must be drawn wherever necessary. 3) Figures to the right indicate full marks. 4) Your answers will be valued as a whole. 5) Assume suitable data, if necessary. SECTION - I Q1) a) Compare Compiler and Interpreter. [4] b) Define following : i) Cross compiler c) Write a LEX program for a subset of C. ii) Incremental Compiler [4] [8] OR Q2) a) b) Q3) a) b) Explain various Compiler Construction tools. [8] Write a LEX program to calculate number of words in the input C file. Program also should remove comments from the program. [8] Construct LALR parsing table for following grammar. S -> AA A -> aA A -> b Explain operator precedence parser. [10] [8] OR Q4) a) b) Show that following grammar is LL(1) but not SLR(1). S -> AaAb | BbBa A -> C B -> C Write a YACC program for a simple calculator. [9] [9] P.T.O.

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