Converting to COBOL for OS/390 & VM - Topical Outline

Introduction
   Computer Exercise: Compile an existing program using
            COBOL for OS/390 & VM

Major Impacts
What has been eliminated

Features that are Different
   Identification Division
   Environment Division
   Data Division
   Procedure Division
        Arithmetic Expressions/statements
        Hexadecimal Literals
        INSPECT - CONVERTING
   MVS/XA and MVS/ESA, and OS/390 Support
   Computer Exercise: Convert a Program to COBOL for OS/390 & VM

New Features
   Procedure Division
        PERFORM TEST AFTER
        In-line PERFORM
        END Statements
        EVALUATE
        SET ... TO TRUE
        INITIALIZE
   Computer Exercise: Using the New Features, Round 1

More New Features
   Identification Division
        INITIAL
        Nested Programs
   Data Division
        EXTERNAL
        GLOBAL
   Procedure Division
        Reference Modification
        POINTER variables, ADDRESS OF
        LENGTH OF
        CALL BY CONTENT
        Intrinsic Functions
   Computer Exercise: Using the New Features, Round 2

The Cobol for OS/390 & VM Compiler
   TITLE
   PROCESS statement
   Compiler Options
        Unchanged
        Changed
        New
   *CONTROL statement
   Execution Time Options
   Computer Exercise: Exploring the Compiler

Interface Implications: VSAM, IMS, CICS, SORT, LE for OS/390 & VM

Miscellaneous Topics
   Compiler Listing Improvements
   Conversion Aids
   Report Writer Considerations
   Conversion Strategies
   Interactive Debugging Facilities

Course information: D-200 / 2 Days   These Materials © Copyright 2003 by Hunter Cobb    V5.x

Course Objectives
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this page last updated: 18 May, 2006
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