Assembler - Mainframe HLSAM [ Full Course]

Master Assembler Language: A Comprehensive Guide

Unlock the power of low-level programming with our in-depth course on Assembler Language. This course provides a practical understanding of how to write code that directly interacts with your computer's hardware. We'll build upon foundational concepts with hands-on examples, mirroring our successful virtual instructor-led training format.

Course Topics:

• Assembler Language Fundamentals: Begin with a solid understanding of Assembler Language as a symbolic programming language, a crucial step before diving into machine code. Learn how it allows for precise control over your program's execution.
• Number Systems: Grasp the basics of the number system, including Decimal and Hexadecimal, essential for working with data at a fundamental level.
• Memory Concepts: Explore how memory is organized and managed in Assembler Language programming.
• Data Representation: Understand various Data Representation methods like Binary, EBCDIC, and Packed Decimal.
• Instruction Formats: Learn about different Instruction Formats and how they dictate the operations performed by the processor.
• Registers: Delve into the role of Registers, including PSW (Program Status Word) and GPR (General Purpose Registers), in managing program execution.
• Data & Symbols: Master the use of Symbols, Data Constants, and Storage allocation within your programs.
• Data Transfer & Logical Operations: Learn how to manipulate and process data using Data Transfer and Logical Operations.
• Bit Manipulation: Gain proficiency in Bit Manipulation techniques for fine-grained control over data.
• Branching: Understand and implement Branching instructions for controlling program flow.
• JCL Aspects: Explore the fundamentals of JCL (Job Control Language).
• Compiler Options: Learn about Compiler Options like RENT and ALIGN and their impact on code generation.
• Linkage Parameter Handling: Understand Linkage PARM handling in program development.
• Subroutines & Linkage: Develop efficient programs using Subroutines and understanding Linkage concepts.
• 24 Bit Mode: Explore the intricacies of 24 Bit Mode programming.
• Assembler Directives & Macros: Utilize Assembler Directives and Macros (including LTORG, CSECT, DSECT, GET, and PUT) to streamline your code.
• File Handling: Learn to manage data with File Handling techniques for both Flat and VSAM files.

Why Learn Assembler Language?

Assembler Language is the closest programming language to machine language, offering unparalleled control. It's ideal for:

• Low-Level Control: When you need precise control over your program, down to the byte or bit level.
• Subroutines: Writing custom subroutines for functions not readily available in higher-level languages like COBOL, FORTRAN, or PL/I.

How Assemblers Work:

An assembler translates human-readable instruction statements into machine code. These statements can be:

• Machine Instructions: Symbolic representations of machine language instructions (e.g., for IBM Enterprise Systems Architecture/390 (ESA/390) or IBM z/Architecture®).
• Assembler Instructions: Requests to the assembler to perform tasks like defining data constants or reserving storage.
• Macros: Predefined sequences of instructions that the assembler expands during assembly.

The assembler produces a program listing and information for the binder (or linker) which combines object code into load modules. This process, called linkage-editing, prepares your program for execution.

This course is perfect for anyone seeking a deep understanding of computer architecture and low-level programming.