MVS Assembler Language

The purchase was just what I hoped for and it was in the condition as described by the seller. Thanks!

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The best reference manual is one that's filled with examples, not only dry text. This one does that. It's helped me many times in my job as independent contract programmer. I bought this book for myself and use it on every assignment.

McQuillen and Prince's "MVS Assembler Language" has a clear sense of direction and is well written. It provides a good introduction to S/370 assembler language for the uninitiated. However, advanced students may find that it falls short from a technical point-of-view; it fails to mention the system 370 PSW, privileged opcodes, interrupt mechanism or the channel subsystem. I wish they had covered reentrant programming techniques. Coding for reentrancy in assembler language is a pervasive discipline, and really belongs at an introductory level. Consider this book if you have been charged with responsibility for maintaining someone else's assembler language code and you haven't a clue where to begin. But if you plan to do development (and especially systems programming), then this book will only take you so far.