These pages are intended to supplement basic training in Assembler.

Those without prior Assembler experience are urged to visit either our Education Services page to ascertain what formal Assembler Training is on offer.

If you have any immediate queries or questions about IBM Assembler please click here.

• Assembler/Cobol Terminology Guide
• Converting Decimal to Hexadecimal
• Converting Decimal to Binary
• Converting to Two's Complement
• GPR Save area (OS/390 & z/OS)
• Numerical Representation
• OS/390 - z/OS Instruction Comparison
• SRST vs TRT
• Where to find Assembler Instructions
• Where to find Data Constant Descriptions
• Where to find I/O Macros
• Where to find Supervisor Service Macros

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