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Mainframe Training Overview
This class is an introduction to Assembler Language programming. Topics include an overview of computer architecture, review of instruction formats, and basic assembler language instructions
Mainframe Training Objectives
The student should be able to construct a basic assembler language program using register save/restore conventions, establish a base register and use basic data manipulation instructions. The course will involve accessing data by performing basic I/O operations against a sequential file and well as using conditional logic to process the data and create basic output. The student will begin a cursory introduction to dumps by using the ABEND macro to interpret register contents.
Mainframe Training Audience
This class is intended for programmers or operators who have a good understanding of basic z/OS architecture.
Mainframe Training Prerequisites
Students should have experience with TSO/ISPF and JCL.
Mainframe Training Course duration
5 Days
Mainframe Training Course outline
I. Introduction to Computer Systems Architecture
A. Review how data is represented in storage
B. Introduce addressing concepts; absolute and relative
C. Examine the use of registers and how they are used in instructions
D. Introduce the Program Status Word (PSW).
II. Basic Instructions
III. LOAD/STORE Instructions
A. MOVE instructions
B. Data definitions
IV. Assembler Language Program Structure
A. Introduction to save/restore register conventions
B. Overview of general register usage
C. Establishing program addressability.
V. Conditional Instructions
A. COMPARE instructions.
B. BRANCH instructions
VI. Basic I/O Operations
A. OPEN/CLOSE processing of sequential files
B. GET/PUT using QSAM
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