Day One

Language Environment – An Introduction

• What Is LE?
• LE Conforming Programs
• LE Services
• Invoking LE Services
• LE Program Management

Introduction to Debugging and Dump Reading

• Computer Exercise : ONION, Debugging Program

Guidelines for Debugging

• The School of Footprints and Breadcrumbs
• Program Termination
• Sources of Information
  • IBM Publications
  • Quick Reference
• Messages and Clues
  • File Related Messages
  • Common System Completion Codes
    • Program Check error Codes

Common LE Completion Codes
Lab Time for ONION

Anatomy of a COBOL Compile Listing
Machine Instructions
Executable Programs

• Lab Time for ONION

Dump Reading – Introduction

• LE Dump Reading
• Locating Data Items in an LE Dump
• Common Errors to Watch For
• Locating Index Information in a Dump
• Locating Data in a Program’s Linkage Section

How the COBOL compiler works

• Data sets
• Compiler Parms
• PROCESS Statement

Day Two

Subroutines and parameters

• CALL Syntax
• Enhancements to Parameter Passing
• Returning Values
• Multiple ENTRY points

The Program Binder

• Object Modules and Load Modules
• CSECTs
• Binder Control Statements and PARMs
• Binder Processing
• The Program Binder and Maintenance
• Application Programming to get PARM Data
• Computer Exercise: Program Binder and Maintenance

More About the Program Binder

• Load Modules vs. Program Objects
• Binder Parms
• Binder Inputs

LE Condition Handling

• Condition Handling Concepts
• Standard LE Processing for T_I_U and T_I_S

Dynamic CALL, CANCEL

COBOL Source Debugging Techniques

• Subscriptrange Checking
• DISPLAY
• DEBUGGING MODE (Compile Time Switch)
• Declaratives
• TEST and CEEDUMP
• Runtime Options
• Computer Exercise: Using TEST

LE Debugging Services

• CEE3DMP, CEE3ABD, CEETEST

LE: The Run-Time Environment

• Specifying run-time parameters
• LE run-time parameters that apply to debugging or COBOL