CS1203 System software Syllabus

CS1203        SYSTEM SOFTWARE                        3  0  0  100

To have an understanding of foundations of design of assemblers, loaders, linkers, and macro processors.

•    To understand the relationship between system software and machine architecture.
•    To know the design and implementation of assemblers
•    To know the design and implementation of linkers and loaders.
•    To have an understanding of macroprocessors.
•    To have an understanding of system software tools.

UNIT I        INTRODUCTION                                    8
System software and machine architecture – The Simplified Instructional Computer (SIC) - Machine architecture - Data and instruction formats - addressing modes -
instruction sets - I/O and programming.

UNIT II     ASSEMBLERS                                10
Basic assembler functions - A simple SIC assembler – Assembler algorithm and data structures - Machine dependent assembler features - Instruction formats and addressing modes – Program relocation - Machine independent assembler features - Literals – Symbol-defining statements – Expressions - One pass assemblers and Multi pass assemblers - Implementation example - MASM assembler.

UNIT III     LOADERS AND LINKERS                        9
Basic loader functions - Design of an Absolute Loader – A Simple Bootstrap Loader - Machine dependent loader features - Relocation – Program Linking – Algorithm and Data Structures for Linking Loader - Machine-independent loader features - Automatic Library Search – Loader Options - Loader design options - Linkage Editors – Dynamic Linking – Bootstrap Loaders - Implementation example - MSDOS linker.

UNIT IV     MACRO PROCESSORS                        9
Basic macro processor functions - Macro Definition 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 within Macro-Implementation example - MASM Macro Processor – ANSI C Macro language.

UNIT V        SYSTEM SOFTWARE TOOLS                        9
Text editors - Overview of the Editing Process - User Interface – Editor Structure. - Interactive debugging systems - Debugging functions and capabilities – Relationship with other parts of the system – User-Interface Criteria.

    TOTAL : 45
1.    Leland L. Beck, “System Software – An Introduction to Systems Programming”, 3rd Edition, Pearson Education Asia, 2000.

1.    D. M. Dhamdhere, “Systems Programming and Operating Systems”, Second Revised Edition, Tata McGraw-Hill, 1999.
2.    John J. Donovan “Systems Programming”, Tata McGraw-Hill Edition, 1972.

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