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SYSTEM SOFTWARE

MC9224          SYSTEM SOFTWARE                                                         
L T P C
3 0 0 3
UNIT I              INTRODUCTION                                                                                        9
Introduction – System software and machine architecture – The Simplified Instructional Computer (SIC) – Machine Architectures (SIC and SIC/XE) – Data and Instruction Formats – Addressing Modes –Instruction sets – I/O Programming.

UNIT II            ASSEMBLERS                                                                                           9
Basic assembler functions – A simple SIC assembler – Assembler algorithms and data structures – Machine dependent assembler features, Instruction formats and addressing modes – Program relocation –  Machine independent assembler features – Literals – Symbol-defining statements – Expressions – Program Blocks – Control Sections and Program Linking – One Pass Assembler and Multipass Assemblers -  Implementation examples  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 examples: 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 Processor Design Options – Recursive Macro Expansion – Algorithm – General Purpose macro Processors – Macro Processing within Language Translators - Implementation examples: MASM Macro Processor – ANSI C macro language.

UNIT V            OTHER SYSTEM SOFTWARE                                                                9
Text editors – Overview of Editing Process - User Interface – Editor Structure – Interactive Debugging Systems – Debugging functions and capabilities – Relationships with Other parts of the system – User Interface Criteria.
                                                                                                      TOTAL = 45
TEXT BOOKS:

1.            Leland Beck  - “System Software – An Introduction to Systems Programming”, Third Edition, Pearson Education, Inc., 1999.

REFERENCES:

1.            D. M. Dhamdhere, " Systems Programming and Operating Systems", Tata McGraw Hill Company, 1999.
2.            John J. Donovan, “Systems Programming”, Tata McGraw Hill Company, 1991.



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