Course Overview
This course provides instruction and practice in the use of the more complex S/390 Assembler Language facilities for the experienced assembler language programmer. The course includes a discussion of standard linkage conventions, use of BSAM/QSAM and selected system macros, the macro definition language, and reentrant coding considerations.
Emphasis is placed on enhancing skills in problem resolution through analysis of more complex system-provided dumps.
What you’ll learn
- Identify data management considerations and access methods
- Code assembler language programs which:
- Conform to standard linkage conventions using save area chaining
- Define and use BSAM/QSAM datasets through standard I/O macros
- Define and execute user macros which contain:
- Positional and/or keyword parameters
- Fixed or variable entry parameter lists
- Conditional assembly logic
- Use variable length storage operations (that is, EX, MVCL, and so on)
- Employ more complex instructions (that is, TR, TRT, BXLE, and so on)
- Access JCL parameter data
- Employ LE date/time handling services
- Identify reentrant coding considerations and dynamic storage acquisition
Requirements
- Code and debug simple S/390 assembler language programs
Target audiences
- This course is designed for application programmers and beginning system programmers who code, maintain, and debug application support programs or subroutines written in S/390 assembler language.
Curriculum
- 1 Section
- 4 Lessons
- 32 Hours
Expand all sectionsCollapse all sections
- Topics4
- 1.1Day 1 (00:15) Welcome (01:00) Unit 1: Review (00:15) Unit 2: Assembler instructions (01:45) Unit 3: Linkage (01:30) Unit 4: LE date/time handling (02:30) Exercise 1: PARM handling and search
- 1.2Day 2 (00:15) Lab review (03:00) Unit 5: Access methods: BSAM/QSAM (03:00) Exercise 2: File handling
- 1.3Day 3 (00:15) Lab review (00:30) Unit 6: Assembler compile-time options (00:30) Unit 7: SNAP dumps (03:30) Unit 8: Macros and the Conditional Assembly Language (02:30) Exercise 3: Macro modification
- 1.4Day 4 (00:25) Lab review (01:15) Unit 9: Miscellaneous instructions (00:25) Unit 10: Floating point data (00:25) Unit 11: Reentrant coding (00:15) Class wrap-up
Instructor
