IBM Basic assembly language and successors: Difference between revisions

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===High Level Assembler===

'''High Level Assembler''' or '''HLASM''' was released in June 1992 replacing IBM's Assembler H Version 2.<ref>{{cite web|last=IBM Corporation|title=IBM High Level Assembler and Toolkit Feature - Release History|website=[[IBM]] |date=19 October 2018 |url=https://www.ibm.com/support/pages/ibm-high-level-assembler-and-toolkit-feature-release-history|access-date=January 19, 2025}}</ref><ref name="hlasm-announcement-letter">{{cite web|publisher=IBM Corporation|type=Announcement letter|id=292-244|title=IBM High Level Assembler/MVS & VM & VSE|date=5 May 1992 |url=https://www.ibm.com/docs/en/announcements/archive/ENUS292-244|access-date=January 19, 2025}}</ref> It was the default translator for System/370 and System/390, and supported the MVS, VSE, and VM operating systems. As of 2023 it is [[IBM]]'s current [[Assembly language|assembler]] programming language for its [[z/OS]], [[z/VSE]], [[z/VM]] and [[z/TPF]] [[operating system]]s on [[z/Architecture]] [[mainframe computer|mainframe]] [[computers]]. Release 6 and later also run on [[Linux]], and generate [[Executable and Linkable Format|ELF]] or [[GOFF]] object files (this environment is sometimes referred to as [[Linux on IBM Z]]).<ref>{{cite book|last=IBM Corporation|title=High Level Assembler for Linux on zSeries User's Guide|year=2008|url=httphttps://publibfp.dhe.ibm.com/epubs/pdf/asml1020.pdf|access-date=2025-07-23}}</ref> While working at IBM, John Robert Ehrman<!-- 1935-2018 https://web.archive.org/web/20221015170120/https://oac.cdlib.org/findaid/ark:/13030/c8xk8mnr/ https://web.archive.org/web/20221015172646/https://www.forevermissed.com/john-ehrman/about https://www.linkedin.com/in/john-ehrman-8794b26b --> created and was the lead developer for HLASM{{efn|HLASM followed a SHARE requirement to incorporate Greg Mushial's enhancements<ref>{{citation

| title = Module 24: SLAC Enhancements to and Beautifications of the IBM H-Level Assembler for Version 2.8

| author = Greg Mushial

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{{Wikibooks|360 Assembly}}

* [https://www.ibm.com/docs/en/hla-and-tf/1.6.0?topic=generalpdf-information IBM Highformat-documentation LevelPDF Assemblerformat manualdocumentation]

* [https://www.ibm.com/docs/en/SSENW6_1.6.0/pdf/asmg1025_pdf.pdf High Level Assembler for z/OS & z/VM & z/VSE 1.6 General Information]

* [http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/360/asm/SC20-1646-6_int360asm_Aug70.pdf A Programmer's Introduction to IBM System/360 Assembler Language (Student Text)]

* [httphttps://publibz.boulderwww.ibm.com/epubsdocs/en/SSENW6_1.6.0/pdf/asmr1020asmr1024_pdf.pdf High Level Assembler for z/OS & z/VM & z/VSE Language Reference]

* [http://punctiliousprogrammer.com/ The Punctilious Programmer: IBM Mainframe Assembler]

* [https://www.amazon.com/dp/B00NS797PQ Basic IBM Mainframe Assembly Language Programming]