z/OS Assembler Language - Introduction
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.
This class is intended for programmers or operators that have a good understanding of basic z/OS architecture.
Experience with a programming language preferred.
Mainframe Training Audience
Mainframe Training Prerequisites
Mainframe Training Course duration
5 days
Mainframe Training Course outline
Introduction to computer systems architecture
Review how data is represented in storage.
Introduce addressing concepts; absolute and relative.
Examine the use of registers and how they are used in instructions.
Introduce the Program Status Word (PSW).
Basic Instructions
LOAD/STORE instructions.
MOVE instructions
Data definitions
Assembler Language Program Structure
Introduction to save/restore register conventions.
Overview of general register usage.
Establishing program addressability.
Conditional Instructions
COMPARE instructions.
BRANCH instructions
Basic I/O Operations
Introduction to macros.
OPEN/CLOSE processing of sequential files
GET/PUT using QSAM.
Mathematical Operations
Arithmetic operations using decimal instructions.
Performing binary arithmetic operations.
