This four-day course is designed to build on the skills taught in the 'Using z/OS Assembler' course. It starts with a short review of the basic Assembler instructions before introducing more advanced areas such as general addressability, 31 and 64 bit addressing, re-entrancy, macro usage, debugging and recovery.<br>The course also covers the Assembler macro language fundamentals and z/OS Control Block usage, essential knowledge required when maintaining and writing z/OS exits.<br><br>This course is also available for one-company, on-site presentations and for live presentation over the Internet, via the Virtual Classroom Environment service.

We can organize this training at your preferred date and location. Contact Us!

Prerequisites

Prerequisite for this course is attendance on Using z/OS Assembler course or equivalent experience. It is not mandatory but it would be helpful to have also attended the courses z/OS System Fundamentals Part 1 & z/OS System Part 2.

What You Will Learn

use advanced addressability techniques
use data management macros
receive and pass subroutine parameters and process return codes
utilise the linkage stack
apply 31 & 64 bit addressing concepts
write re-entrant code
use the basic Assembler macro language
code Binder control statements
use MVS control blocks in exit routines
use supervisor services macros
debug dumps
write ESTAE routines
write re-entrant programs.

Training Outline

Addressability

Control Sections - CSECTS; CSECT addressability - methods and examples; DROP directive; CSECTS in excess of 4K; Multiple Base Registers; Reference by explicit address; Reference by Dummy Section; DSECT mapping and external storage; MVS control block DSECTs; Explicit reference and internal control blocks; DSECT reference and internal control blocks; DSECT reference and external control blocks.

I/O and Data Management

Sequential files: Fixed Length Records, Variable Length Record; Data Control Block (DCB); QSAM DCB; OPEN macro; CLOSE macro; Using the GET macro in Move mode; Using the PUT macro in Move mode; Using the GET macro in Locate mode; Using the PUT macro in Locate mode; Execute.

Intermodule Communication

Static Load Module structure and the VCON; Static Load Module linkage - 'CALL' macro; Secondary entry points; Establishing addressability for secondary entry points; External references using EXTRN; Save Area conventions; Standard Module linkage; SAVE and RETURN macros; Parameter passing standard convention; PARM keyword on JCL EXEC statement; Parameter passing using Explicit Interface; CALL macro: Explicit Parameter Interface, Implicit Parameter Interface, Implicit Variable Parameter Interface; Return code setting; Return code testing; Manipulating the Linkage Stack with BAKR and PR; Status saving using the Linkage Stack.

Extended Addressability

Virtual Storage; Establishing AMODE and RMODE values; AMODE and RMODE combination rules; Addressing mode sensitivity; Mode setting instructions - BASSM and BSM; Calling and returning using BASSM and BSM (Basic Mode); Mode switching to retrieve data from above 16 MB; Using pointer-defined linkage; BASSM & BSM in 64 bit mode; Using linkage assist routines; Using capping to assist linkage to 24-bit program; Using capping to assist linkage to 31-bit program.

Binder (Linkage editor)

Binder overview; Resolving external references; Object and LOAD module records; External Symbol Dictionary; ReLocation Dictionary; Automatic library call feature; Weak external reference; Binder JCL; Binder module attribute options; Binder module processing and output options; Binder control statements; Binder codes; AMBLIST utility.

Debugging

Problem program dump facilities; ABEND; SNAP; ABEND dump files; ABEND dump default contents; Summary dump; Symptom dump; ABEND macro; Parameter descriptions; SNAP macro; SNAP SDATA options; SNAP PDATA options; Save Area traces; Save Area trace and linkage stack entry.

System Services

Event synchronisation; WAIT macro; POST macro; write to log macro (WTL); write to operator macro (WTO); write to operator with reply macro (WTOR); delete operator message macro (DOM); TIME macro; STIMER macro; TTIMER macro; CPUTIMER macro.

Recovery

Recovery flow; ESTAE macro; System Diagnostic Work Area (SDWA); recovery routine processing; SETRP macro; retry options; lab exercise (write an ESTAE recovery routine).

Advanced Instructions

Move long (MVCL); compare logical long (CLCL); translate (TR); translate & test (TRT); edit (ED); edit & mark (EDMK).

Macro Language Fundamentals

Macro language introduction; macro language feature; defining a macro - basic rules; passing positional parameters; passing keyword parameters; parameter and keyword sublists; common system variables; testing how a field was defined; Lab exercise.

Task Management

LINK; LOAD ATTACH; XCTL.

Re-entrant & Re-usable Code

Re-entrant and re-usable code - objectives; re-usable code (REUS) ; re-entrant code (RENT) - the rules; RENT- how do you do it?; Re-entrant code example; List and Execute forms of macros; Getting the re-entrant benefit; Refreshable; Lab exercise (make a routine re-entrant).

Why Choose Us

Experience Advanced Assembler and Macro Usage through Bilginç IT Academy's live and interactive virtual classroom environment, accessible from your home, office, or any location. Connect with expert trainers in real time and bring the energy of classroom learning into the digital experience.

Live Instructor-Led Sessions: Join scheduled training sessions with your instructor and fellow delegates in real time.
Interactive Learning Experience: Take part in discussions, practical exercises, group activities, and Q&A sessions throughout the course.
Expert Trainer Network: Learn from experienced trainers with strong industry backgrounds and practical field expertise.
Over 30 Years of Training Expertise: Benefit from Bilginç IT Academy's long-standing experience in delivering professional training since 1995.
Flexible and Scalable Delivery: Access live virtual classrooms worldwide with flexible planning options for individual and corporate training needs.

Experience Advanced Assembler and Macro Usage in a focused classroom environment designed for high engagement and effective learning. Bilginç IT Academy's carefully selected training venues provide a professional setting where delegates can interact directly with expert trainers and peers.

Experienced Trainers: Learn from specialists with extensive field experience and real-world knowledge.
Professional Training Venues: Attend courses in comfortable, well-equipped classrooms designed to support effective learning.
Focused Classroom Experience: Benefit from limited class sizes that encourage discussion, interaction, and personalized support.
Quality-Driven Learning: Develop practical skills through structured, up-to-date, and professionally designed training content.

Meet your team's training needs with Bilginç IT Academy's onsite Advanced Assembler and Macro Usage solution, delivered at your office or preferred location. Align your team's development with your business goals through a training experience tailored to your organization.

Tailored Course Content: Adapt the training program to your organization's projects, team structure, and specific business requirements.
Time and Cost Efficiency: Reduce travel, accommodation, and operational costs while maximizing the value of your training investment.
Team-Focused Learning: Help your employees develop around the same knowledge base and strengthen collaboration across your organization.
Simplified Planning and Tracking: Manage the training process, participant development, and organizational requirements with greater control.

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Advanced Assembler and Macro Usage Training

Prerequisites

What You Will Learn

Training Outline

Why Choose Us