High Level Assembler for z/OS & z/VM & z/VSE Language Reference
This describes instructions pertinent to the compilation process,
some of which are here. It does not contain the machine executable instructions.
High Level Assembler for z/OS & z/VM & z/VSE Programmer's Guide
This describes how to perform various tasks using Assembler.
z/Architecture Principles of Operation
This manual is not Operating System specific but describes each instruction within the z/Archtecture instruction set.
Older versions of the manual will not describe any newer instructions.
z/OS DFSMS Macro Instructions for Data Sets
Macros are tailorable portions of code supplied by IBM, and this manual describes all such macros relevant to processing both
VSAM and non-VSAM data sets.
z/OS MVS Programming: Assembler Services Reference, (2 volumes)
The macros described in these two manuals provide the ability to take advantage of Operating System services.
The Legac-e Information Site
Legac-e - Assembler for non-Assembler Programmers
Documentation
Typically if programming in a high level languages such as COBOL or PLI, the programmer can obtain most of the
information required from two manuals:
- The programming language "Reference Manual"
- The relevant "Programming Guide"
This is not the case with Assembler, as illustrated opposite.
There are additional manuals describing the macros and services available to programmers coding authorised programs.