Advanced Assembler Language Coding Workshop - ES35GCR

Advanced Assembler Language Coding Workshop – ES35GCR

Enrol Details

Course Code: ES35G Brand: IBM Z – Mainframe Category: Systems Skill Level: Advanced Duration: 32H Modality:CR Audience

This course is designed for application programmers and beginning system programmers who code, maintain, and debug application support programs or subroutines written in S/390 assembler language.

Prerequisites

You should be able to:

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Code and debug simple S/390 assembler language programs

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Short Summary

This course is designed for application programmers and beginning system programmers who code, maintain, and debug application support programs or subroutines written in S/390 assembler language. Overview

This course provides instruction and practice in the use of the more complex S/390 Assembler Language facilities for the experienced assembler language programmer. The course includes a discussion of standard linkage conventions, use of BSAM/QSAM and selected system macros, the macro definition language, and reentrant coding considerations.

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Emphasis is placed on enhancing skills in problem resolution through analysis of more complex system-provided dumps.

Topic

Day 1

(00:15) Welcome
(01:00) Unit 1: Review
(00:15) Unit 2: Assembler instructions
(01:45) Unit 3: Linkage
(01:30) Unit 4: LE date/time handling
(02:30) Exercise 1: PARM handling and search

Day 2

(00:15) Lab review
(03:00) Unit 5: Access methods: BSAM/QSAM
(03:00) Exercise 2: File handling

Day 3

(00:15) Lab review
(00:30) Unit 6: Assembler compile-time options
(00:30) Unit 7: SNAP dumps
(03:30) Unit 8: Macros and the Conditional Assembly Language
(02:30) Exercise 3: Macro modification

Day 4

(00:25) Lab review
(01:15) Unit 9: Miscellaneous instructions
(00:25) Unit 10: Floating point data
(00:25) Unit 11: Reentrant coding
(00:15) Class wrap-up

Objectives

Identify data management considerations and access methods

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Code assembler language programs which:_x000D_
- Conform to standard linkage conventions using save area chaining
- Define and use BSAM/QSAM datasets through standard I/O macros
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Define and execute user macros which contain:_x000D_
- Positional and/or keyword parameters
- Fixed or variable entry parameter lists
- Conditional assembly logic
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Use variable length storage operations (that is, EX, MVCL, and so on)

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Employ more complex instructions (that is, TR, TRT, BXLE, and so on)

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Access JCL parameter data

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Employ LE date/time handling services

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Identify reentrant coding considerations and dynamic storage acquisition

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