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    Published on March 21, 2026

    Assembler Language Coding Workshop

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    Launch course

    This classroom hands-on lab course provides an introduction to the mainframe Assembler language. The course is designed to develop the skills appropriate to write and/or maintain programs and routines written in S/370 or S/390 Assembler Language. Emphasis is placed on enhancing skills in problem resolution through program check interruption analysis and dump reading.

    Assembler Language Coding Workshop
    Table of contents
    1. Short Summary
    2. Modality
    3. Cost
    4. Publish date
    5. Retire date
    6. Duration
    7. Agenda
    8. Objectives
    9. Brand/Department
    10. Product
    11. Skill Level
    12. Key Topics
    13. Audience
    14. Labs
    15. Follow-on Courses
    Short Summary

    This intermediate course is for application programmers and/or beginning system programmers who code, maintain and/or debug application support programs or subroutines written in S/370 or S/390...

    Modality

    Classroom or Instructor-led online

    Cost

    paid

    Amount

    300

    Publish Date

    December 10, 2009

    Retire Date

    June 30, 2028

    Duration

    40 hours

    Agenda

    Day 1

    • Welcome
    • Unit 1 - Numbering systems
    • Unit 2 - Mainframe architecture
    • Unit 3 - Assembler syntax
    • Overview of instructions: LA, LR, LTR, MVC, DS, DC
    • Exercise 1 - 80/80 listing
    • Exercise 1A - 80/80 listing

    Day 2

    • Exercise 1 review
    • Unit 4 - Data definition statements
    • Unit 5 - Fixed-point binary instructions
    • Exercise 2 - Binary data

    Day 3

    • Exercise 2 review
    • Unit 6 - Addressing, comparing, and branching
    • Unit 7 - Data movement instructions
    • Exercise 3 - Text handling

    Day 4

    • Exercise 3 review
    • Unit 8 - Assembler pseudo instructions
    • Unit 9 - Reading dumps
    • Unit 10 - Packed decimal processing
    • Exercise 4 - Packed data/editing

    Day 5

    • Exercise 4 review
    • Unit 11 - Miscellaneous instructions
    • Course wrap-up
    Objectives
    • Recognize architectural features, such as instruction formats, data representation, storage addressing, and so on, which are significant to program analysis
    • Identify point of program interruption, using the formatted system dump and elements of information such as the Program Status Word (PSW), the Instruction Length Code (ILC), the program's base register(s), and so on
    • Identify appropriate standards for assembler programs in terms of program organization, register conventions, coding practices, documentation, and so on
    • Code and debug assembler language programs which:
    • Conform to standard linkage conventions using save area chaining
    • Define and use various types of data definitions, including fixed point binary, character, hexadecimal, and packed decimal
    • Employ standard macros such as CALL, SAVE, RETURN
    • Use various Assembler Language statements such as CSECT, EQU, COPY, END
    • Use both symbolic and explicit notational forms for instructions
    • Use data literals appropriately, and explain the use of LTORG to direct positioning of the literal pool
    • Create and use appropriate patterns for EDIT instructions

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    Brand/Department

    IBM Z - Mainframe

    Product

    z/OS

    Skill Level

    Instructor: intermediate, Student: intermediate

    Key Topics

    Assembler Language, S370, S390, System z, zos

    Audience
    • This intermediate course is for application programmers and/or beginning system programmers who code
    • maintain and/or debug application support programs or subroutines written in S/370 or S/390 Assembler Language.
    Labs

    Yes

    Follow-on Courses

    Not provided.