Interskill Learning Mainframe Training

Brazilian Portuguese French German Italian Russian Spanish (European) Spanish (Latin American)
+44 (0) 1625 441120

The Online Mainframe Training Specialists
Search   Course Catalogue   Live Chat!  
Return to Catalogue Home     Return to Curriculum Listing

Assembler Cross Memory Services


4 hours


The z/OS Assembler course covers introductory concepts, Instructions, z/OS Architecture, etc. It instructs the student on programming using assembler language mnemonics, provides a machine code specific introduction to the z/OS architecture and covers number systems and program compilation / execution.


System or application programmers who code Assembler programs or maintain system related programs and user exits; this course reinforces good Assembler programming techniques and introduces more advanced techniques including cross memory services, access registers and data-in-virtual.


Completion of the Assembler Introduction, Assembler Instructions, Assembler Macros and Assembler Programming courses plus a sound knowledge of programming concepts, and experience with IBM z/OS architecture.


    After completing this course, the student will be able to identify:
  • Cross memory instructions and linkage
  • Cross memory clients and services
  • Access registers and Data in Virtual

Course Content

Cross Memory Addressing

Address Space Areas
Service Providers
Standard Program Calls

Cross Memory Service Routines

Functional PC Routines
Writing a Service Provider
Cross Memory User

Access Registers and Data-In-Virtual

Access Registers
Copy Access Instruction
Data in Virtual
Identify Service

Assembler Cross Memory Services Mastery Test

Looking for more information about Interskill Learning Products?
Contact our Learning Consultants or call us at +44 (0) 1625 441120