Assembler Programming Workshop

Course Objectives
At the completion of this Course, students will know and understand how to use the IBM Assembler Programming Language.

On completion of this Course the student will be able to:

• Explain the assembly process
• Explain the general syntax and structure of the language
• Demonstrate the ability to start and end programs correctly
• Select and use appropriate instructions for moving data between registers and storage
• Select and use appropriate instructions for moving data around storage
• Use appropriate instructions to alter the logic flow of a program.
• Perform binary integer arithmetic
• Perform decimal arithmetic
• Perform bit manipulation
• Execute non-VSAM queued technique I/O macros
• Call sub-routines in a variety of ways

Course Details

• Assembler environment
• Assembly output, Binder output, Load Module
• locations, General Purpose Registers,
• documentation sources, and general syntax.
• Data areas
• DC, DS, Literals, and EQU
• Beginning and ending
• CSECT statement, Save Areas, BASR, BR, L,
• LA, LM, ST, STM, Using statement, and End statement
• Basic decision making
• Condition Codes, BC, BCR, extended mnemonics, CLC, and CLI
• Moving data around storage
• MVC, MVI, MVCL, MVN, MVO, MVZ
• Non-VSAM queued I/O macros
• Open, Close, DCB, Get, and Put
• Moving data to/from registers
• IC, ICM, ICMH, L, LH, LM, ST, STC, STCM, STCMH, STM
• Storage overlay
• DSECT. ORG, and the STORAGE macro
• More decision making
• BCT, BCTR, C, CH, CP, CR, LTR
• Pre- and Post- arithmetic formatting
• PACK, UNPK, CVB, CVD, and OI
• Binary integer arithmetic
• A, AH, AR, D, DR, M, MH, MR, S, SH, SR
• Decimal arithmetic
• AP, DP, ED, EDMK, MP, SP, SRP, ZAP
• Bit manipulation
• AND, XOR, OR, theShiftInstructions, and TM
• Sub-routine Handling
• CALL, LINK, LOAD, and XCTL macros
• Course Environment This Course is deliverable for the IBM operating system z/OS, (OS/390).

Target Audience
The course is aimed at developers not familiar with Assembler program development. This course covers all aspects of Programming with Assembler. The course teaches the design, writing and testing of Assembler programs. Many exercises are performed by the developer to ensure that the statements taught are fully understood and practical experience is gained.
Delegates may be new to programming or familiar with a high level language and require Assembler to support historic "bread and butter" applications, or improve debugging capabilities.

Course Format: Practical sessions make up a large part of the course, allowing delegates to demonstrate and reinforce the lectures given. During these sessions the delegate will gain experience of writing and testing different types of Assembler programs using the various Assembler verbs available. Examples are used extensively, ranging from simple code snippets to full applications with complete 'real world' functionality. These are supplied at the start of the course and it is encouraged that the delegates execute and 'experiment' with these under the instructor's guidance as they are introduced. These examples are available to take away, along with the delegate's own work. The comprehensive Student Guide supplied is fully indexed serving as a useful reference tool long after the course has finished. Delegates will also be able to access a free help-line with technical questions relating to topics covered on the course.