Topic: System Software
Sem : 5
Subject Code: 10CS52 I.A. Marks : 25
Hours/Week : 04 Exam Hours: 03
Total Hours : 52 Exam Marks: 100
PART – A
UNIT – 1 6 Hours
Machine Architecture: Introduction, System Software and Machine Architecture, Simplified Instructional Computer (SIC) - SIC Machine Architecture, SIC/XE Machine Architecture, SIC Programming Examples.
UNIT – 2 6 Hours
Assemblers -1: Basic Assembler Function - A Simple SIC Assembler, Assembler Algorithm and Data Structures, Machine Dependent Assembler Features - Instruction Formats & Addressing Modes, Program Relocation.
UNIT – 3 6 Hours
Assemblers -2: Machine Independent Assembler Features – Literals, Symbol-Definition Statements, Expression, Program Blocks, Control Sections and Programming Linking, Assembler Design Operations - One- Pass Assembler, Multi-Pass Assembler, Implementation Examples - MASM Assembler.
UNIT – 4 8 Hours
Loaders and Linkers: Basic Loader Functions - Design of an Absolute Loader, A Simple Bootstrap Loader, Machine-Dependent Loader Features – Relocation, Program Linking, Algorithm and Data Structures for a Linking Loader; Machine-Independent Loader Features - Automatic Library Search, Loader Options, Loader Design Options - Linkage Editor, Dynamic Linkage, Bootstrap Loaders, Implementation Examples - MS-DOS Linker.
PART – B
UNIT – 5 6 Hours
Editors and Debugging Systems: Text Editors - Overview of Editing Process, User Interface, Editor Structure, Interactive Debugging Systems - Debugging Functions and Capabilities, Relationship With Other Parts Of The System, User-Interface Criteria
UNIT – 6 8 Hours
Macro Processor: Basic Macro Processor Functions - Macro Definitions and Expansion, Macro Processor Algorithm and Data Structures, Machine- Independent Macro Processor Features - Concatenation of Macro Parameters, Generation of Unique Labels, Conditional Macro Expansion, Keyword Macro Parameters, Macro Processor Design Options - Recursive Macro Expansion, General-Purpose Macro Processors, Macro Processing Within Language Translators, Implementation Examples - MASM Macro Processor, ANSI C Macro Processor.
UNIT – 7 6 Hours
Lex and Yacc – 1: Lex and Yacc - The Simplest Lex Program, Recognizing
Words With LEX, Symbol Tables, Grammars, Parser-Lexer Communication,
The Parts of Speech Lexer, A YACC Parser, The Rules Section, Running
LEX and YACC, LEX and Hand- Written Lexers, Using LEX - Regular
Expression, Examples of Regular Expressions, A Word Counting Program,
Parsing a Command Line.
UNIT – 8 6 Hours
Lex and Yacc - 2 Using YACC – Grammars, Recursive Rules, Shift/Reduce Parsing, What
YACC Cannot Parse, A YACC Parser - The Definition Section, The Rules Section, Symbol Values and Actions, The LEXER, Compiling and Running a Simple Parser, Arithmetic Expressions and Ambiguity, Variables and Typed Tokens.
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