CS 375‚ Compilers: Class Notes Gordon S. Novak Jr. Department of Computer Sciences University of Texas at Austin novak@cs.utexas.edu http://www.cs.utexas.edu/users/novak Copyright c Gordon S. Novak Jr.1 A few slides reproduce figures from Aho‚ Lam‚ Sethi‚ and Ullman‚ Compilers: Principles‚ Techniques‚ and Tools‚ Addison-Wesley; these have footnote credits. 1 1 I wish to preach not the doctrine of ignoble ease‚ but the doctrine of the strenuous life. – Theodore Roosevelt Innovation requires
Premium
SEMESTER PRINCIPLES OF COMPILER DESIGN-CS1352 TWO-MARK QUESTIONS 1. What does translator mean? A translator is a program that takes a input program on one programming language (source language) and produces output in another language (object language or target language). 2. What are the phases of a compiler? • Lexical analysis phase or scanning phase • Syntax analysis phase • Intermediate code generation • Code optimization • Code generation 3. What is the role of lexical analysis phase? Lexical analyzer
Premium Programming language
Compiler-a program that translates an executable program in one language into an executable program in another language Interpreter-a program that reads an executable program and produces the results of running that program Why do we care to study compiler construction Compiler construction is a microcosm of computer science artificial intelligence greedy algorithms learning algorithms Algorithms graph algorithms union-find dynamic programming Theory DFAs for scanning parser generators lattice
Premium Programming language
4.3 DATA FLOW DIAGRAM A data flow diagram is a graphical technique that depicts information flow and transforms that are applied as data move from input to output. The DFD is also known as Data Flow Graph or Bubble Chart. The DFD is used to represent increasing information flow and functional details. Also DFD can be stated as the starting point of the design phase that functionally decomposes the requirements specifications down to the lowest level of detail. A Level 0 also called a fundamental
Premium Data flow diagram
The Use of Cooling Curves in the Determination of the Phase Diagram for a Lead-Tin System V.O.L.Tabell Department of Mining‚ Metallurgical and Materials Engineering University of the Philippines‚ Diliman vo_tabell@yahoo.com Abstract This paper discusses the use of the cooling curves in the determination of the phase diagram of a Lead-Tin system. The inflection points of these cooling curves were obtained by melting a series of mixtures of lead and tin at varying compositions. These critical
Premium Phase Thermodynamics Liquid
FROM OTHER(S) AS ONE’S OWN WILL BE PENALIZED AS DEFINED IN “AIOU PLAGIARISM POLICY”. Course: Compiler Construction (3468) Semester: Autumn‚ 2012 Level: BS (CS) Total Marks: 100 ASSIGNMENT No. 1 Note: All questions carry equal marks. Q. 1 (a) Define Compiler‚ using a diagram describes the three phases of analysis of source program. (b) Explain all the phases of Compiler. (c) Consider the following grammar. S ―> XaYb X ―> bXc | b Y
Premium
An Overview of a Compiler - Part 1 Y.N. Srikant Department of Computer Science Indian Institute of Science Bangalore 560 012 NPTEL Course on Compiler Design Y.N. Srikant Compiler Overview Outline of the Lecture 1 2 3 4 5 Compiler overview with block diagram Lexical analysis with LEX Parsing with YACC Semantic analysis with attribute grammars Intermediate code generation with syntax-directed translation Code optimization examples 6 Topics 5 and 6 will be covered in Part
Premium Programming language
improper handling of application the source file may get damaged or lost by system crash. To solve all these problems we are designing a Cloud Based Multi-Language Programming Compiler to executing different types of source code on one editor providing all type of security. Cloud Based Multi-Language Programming Compiler is an application which greatly lightens the student’s workload at the initial stage of programming. At this stage‚ they neither have to deal with the complexities of the installation
Premium Cloud computing
How to Create a Decision Tree Edited by Madhva_madhu‚ Leona 0 Article EditDiscuss A decision tree is a kind of flowchart -- a graphical representation of the process for making a decision or a series of decisions. Businesses use them to determine company policy‚ sometimes simply for choosing what policy is‚ other times as a published tool for their employees. Individuals can use decision trees to help them make difficult decisions by reducing them to a series of simpler‚ or less emotionally
Premium Decision tree Tree Decision theory
The Structure of a Compiler A compiler performs two major tasks: • • Analysis of the source program being compiled Synthesis of a target program Almost all modern compilers are syntax-directed: The compilation process is driven by the syntactic structure of the source program. A parser builds semantic structure out of tokens‚ the elementary symbols of programming language syntax. Recognition of syntactic structure is a major part of the analysis task. Semantic analysis examines the
Premium Programming language