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{{lead too short|date=June 2014}}
{{Infobox programming language
| name = AMOS
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[[File:AMOS Professional Screenshot.png|thumb|right|Screenshot of the AMOS Professional user interface and code editor, displaying the start of a program included with the language]]
'''AMOS BASIC''' is a dialect of the [[BASIC]] [[programming language]] for the [[Amiga]] computer. Following on from the successful [[STOS BASIC]] for the [[Atari ST]], AMOS BASIC was written for the Amiga by [[François Lionet]] with [[Constantin Sotiropoulos]] and published by [[Europress Software]] in 1990.
 
The language was notable for its focus on media and game development capabilities, allowing users to easily create demanding multimedia software and games. It featured full structured code and numerous high-level functions for loading and manipulating images, animations, and sounds. These capabilities made it a popular choice among Amiga enthusiasts, particularly beginners, for creating video games (especially [[platformer]]s and graphical adventures), multimedia applications, and educational software.
 
== History ==
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The original AMOS was a [[BASIC interpreter]] which, whilst working fine, suffered the same disadvantages of any language being run [[interpreter (computing)|interpretively]]. By all accounts, AMOS was extremely fast among interpreted languages, being speedy enough that an extension called AMOS 3D could produce playable 3D games even on plain 7&nbsp;MHz 68000 Amigas. Later, an AMOS [[compiler]] was developed that further increased speed. AMOS could also run [[MC68000]] machine code, loaded into a program's memory banks.<ref>[https://archive.org/stream/1990-lionet-francois-amos-the-creator-user-guide/1990-lionet-francois-amos-the-creator-user-guide_djvu.txt The Creator], by François Lionet, 1990, ''"AMOS Basic includes special facilities which allow you to combine assembly language routines with your Basic programs."''</ref>
 
To simplify animation of sprites, AMOS included the AMOS Animation Language (AMAL), a compiled sprite scripting language which runs independently of the main AMOS BASIC program.<ref>{{cite web|url=http://grove.ufl.edu/~cwarner/computers.html |title=ArchivedComputers copy |access-date=2010-11-22 |url-status=dead |archive-url=https://web.archive.org/web/20101208051702/http://grove.ufl.edu/~cwarner/computers.html |archive-date=2010-12-08 }}</ref> It was also possible to control screen and "rainbow" effects using AMAL scripts. AMAL scripts in effect created CopperLists, small routines executed by the Amiga's Agnus chip.
 
After the original version of AMOS, Europress released a compiler ('''AMOS Compiler'''), and two other versions of the language: '''Easy AMOS''', a simpler version for beginners, and '''AMOS Professional''', a more advanced version with added features, such as a better [[integrated development environment]], [[ARexx]] support, a new [[user interface]] API and new [[control flow|flow control constructs]]. Neither of these new versions was significantly more popular than the original AMOS.{{Citation needed|date=January 2012|reason=For example, from my experience it was way more popular. References to sales figures or alike would be nice.}}
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The language was mildly successful within the Amiga community. Its ease of use made it especially attractive to beginners.
 
PerhapsOne of AMOS BASIC's biggest disadvantagedisadvantages, stemming from its [[Atari ST]] lineage, was its incompatibility with the Amiga's [[AmigaOS|operating system]] functions and interfaces. Instead, AMOS BASIC controlled the computer directly, which caused programs written in it to have a non-standard user interface, and also caused compatibility problems with newer versions of hardware.
 
Today, the language has declined in popularity along with the Amiga computer for which it was written. Despite this, a small community of enthusiasts are still using it. The [[source code]] to AMOS was released around 2001 under a [[BSD licenses|BSD style license]] by [[Clickteam]], a company that includes the original programmer.<ref>[{{cite web | url=http://clickteam.com/eng/downloadcenter.php?i=58 | archive-url=https://web.archive.org/web/20071130053321/http://clickteam.com/eng/downloadcenter.php?i=58 | archive-date=2007-11-30 | title=Amos & Stos » Main Download]}}</ref><ref>{{cite onweb clickteam| url=https://github.com/AOZ-Studio/AMOS-Professional-Official (archived| 2007)publication-date=2020-04-26 | first=François | last=Lionet | via=AOZ Studio | access-date=2024-11-29 | website=GitHub | title=AOZ-Studio/AMOS-Professional-Official: The official source code of AMOS Professional on the Amiga}}</ref>
 
On the 4 April 2019, [[François Lionet]] announced the release of AMOS2 on his website amos2.org. AMOS2 replaces STOS and AMOS together, using [[JavaScript]] as its code interpreter, making the new development system independent and generally deployed in internet browsers. Amos 2 is now called AOZ Studio.{{cn|date=January 2023}}
 
== Software ==
Software written using AMOS BASIC includes:
 
* ''[[AQUABYSS]]'' by ''Aged Code'', is a 2022 [[Strategy_video_game|strategy]] trading game for the [[Amiga]]<ref>{{cite web|url=https://www.lemonamiga.com/games/details.php?id=4762|title=AQUABYSS (2022) at LemonAmiga.com|access-date=8 August 2024}}</ref>
* ''[[Miggybyte]]''
* ''[[Scorched Tanks]]''
* Games by [[Vulcan Software]], amongst which was the ''[[Valhalla: Before the War|Valhalla]]'' trilogy
* Amiga version of ''[[Ultimate Domain]]'' (called ''[[Genesia (game)|Genesia]]'') by [[Microïds]]
* ''[[Flight of the Amazon Queen]]'', by [[Interactive Binary Illusions]]<ref>{{cite web|url=http://gamasutra.com/blogs/JohnPassfield/20150601/244740/Making_of_Flight_of_the_Amazon_Queen__A_20th_Anniversary_Retrospective.php|archive-url=https://web.archive.org/web/20150602045435/http://www.gamasutra.com/blogs/JohnPassfield/20150601/244740/Making_of_Flight_of_the_Amazon_Queen__A_20th_Anniversary_Retrospective.php|url-status=dead|archive-date=June 2, 2015|title=Making of Flight of the Amazon Queen: A 20th Anniversary Retrospective |access-date=1 January 2016|website=[[Gamasutra]]|date=June 2015 }}</ref>
* ''[[Extreme Violence]]'', included on an ''[[Amiga Power]]'' cover disk
* ''[[Jetstrike]]'', a commercial game by Rasputin Software
* ''[[Black Dawn (1993 video game)|Black Dawn]]'', a 1993 game for the [[Amiga]] personal computer<ref>{{cite web|url=https://crpgaddict.blogspot.com/2023/03/game-487-black-dawn-1993.html|title=Game 487: Black Dawn (1993) |date=March 2023 |access-date=1 March 2023}}</ref>
 
== References ==
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== External links ==
{{wikiversity|AMOS programming language}}
* [https://web.archive.org/web/20130530022407/http://www.pianetaamiga.it/ Source code for AMOS Professional] 68000 ASM from pianetaamiga.it (archived, [https://web.archive.org/web/20151031001644/http://www.pianetaamiga.it/downloads/AMOSPro_Sources.zip ZIP])
 
* [https://web.archive.org/web/20071130053321/http://clickteam.com/eng/downloadcenter.php?i=58 Source code for AMOS and STOS] 68000 ASM from clickteam.com (archived, [https://web.archive.org/web/20120207175110/http://www.clickteam.com/webftp/files/2/5/AMOSCompiler.zip ZIP])
* [http://www.ultimateamiga.co.uk/index.php/page,16/ The AMOS Factory] (an AMOS support/community site)
* [https://web.archive.org/web/20150922173043/http://www.amigacoding.com/index.php/Main_Page Amigacoding website] (contains in-depth info and references for AMOS - Archived version 22 Sep 2015)
* [http://www.triumphoverchallenges.com/stos-and-amos-game-creators/ History of STOS and AMOS]: how they came to be published in the UK
* [https://www.facebook.com/groups/AmosPro/ Amos Professional group on Facebook] (one of the members is AMOS' original developer François Lionet)
 
{{AmigaOS}}
{{BASIC}}