AMOS (programming language): Difference between revisions

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| name = AMOS

| logo =

| paradigm = [[Imperative programming|Imperative]], [[Procedural programming|Procedural]]

| year = {{Start date and age|1990}}

| designer =

| developer = [[François Lionet]] and [[Constantin Sotiropoulos]]

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| operating_system = [[AmigaOS]]

| license = [[BSD licenses|BSD style license]]

| website = [https://web.archive.org/web/20120204085705/http://www.clickteam.com/eng/downloadcenter.php?i=58 AMOS and STOS]

}}

[[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]] implemented onfor the [[Amiga]] computer. AMOSFollowing BASICon wasfrom publishedthe bysuccessful [[EuropressSTOS SoftwareBASIC]] andfor originallythe [[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.

'''AMOS BASIC''' is a dialect of the [[BASIC]] [[programming language]] implemented on the [[Amiga]] computer. AMOS BASIC was published by [[Europress Software]] and originally written by [[François Lionet]] with [[Constantin Sotiropoulos]].

== History ==

AMOS is a descendant of [[STOS BASIC]] for the [[Atari ST]]. AMOS BASIC was first produced in 1990.

AMOS competed on the Amiga platform with Acid Software's [[Blitz BASIC]]. Both BASICs differed from other dialects on different platforms, in that they allowed the easy creation of fairly demanding multimedia software, with full structured code and many high-level functions to load images, animations, sounds and display them in various ways.

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>

The original AMOS version was [[interpreter (computing)|interpreted]] which, whilst working fine, suffered from performance problems. Later, an AMOS [[compiler]] was developed, that reduced this problem.

To speed up thesimplify animation of sprites, AMOS later included the AMOS Animation Language (AMAL), a [[compiler (computing)|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=Computers |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 [[Integratedintegrated development environment|IDE]], [[ARexx]] support, a new [[user interface|UI]] sublanguageAPI 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.}}

AMOS was mostly used mostly to make multimedia software, [[video game]]s (platformers and graphical adventures) and educational software.

The language was mildly successful within the Amiga community. Its ease of use made it especially attractive to beginners.

PerhapsOne of AMOS BASIC's biggestdisadvantages, disadvantagestemming 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 the operating systemhardware.

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 haswas sincereleased beenaround released2001 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 web | url=https://github.com/AOZ-Studio/AMOS-Professional-Official | 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>

== Software using AMOS BASIC==

Software written using AMOS BASIC includes:

* [[ABase]]

* [[Miggybyte]]

* [[Scorched Tanks]]

* [[Spectrapaint]]

* games by [[Vulcan Software]], amongst which the [[Valhalla: Before the War|Valhalla]] trilogy

* ''[[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>

==See also==

* ''[[Miggybyte]]''

*[[BASIC programming language]] &mdash; For the Beginner's All-purpose Symbolic Instruction Code family of programming languages.

* ''[[Scorched Tanks]]''

*[http://alvyn.sourceforge.net/ Alvyn Basic] &mdash; An attempt to recreate an [[open source]] [[multiplatform]] [[BASIC]] [[interpreter (computing)|interpreter]], syntax-compatible with AMOS Professional. Project seems to have gone inactive during 2004.

* gamesGames by [[Vulcan Software]], amongst which was the ''[[Valhalla: Before the War|Valhalla]]'' trilogy

*[http://sdlbasic.sourceforge.net/ sdlBasic] &mdash; a multiplatform Basic interpreter, multiplaform and open-source, using SDL libraries, very inspired by AMOS.

* 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>

==External linksReferences ==

{{reflist|30em}}

*[http://www.clickteam.com/eng/downloadcenter.php?i=58 Source code for AMOS and STOS (68000 ASM)]

*[http://amos.pspuae.com/ The AMOS Factory] (An AMOS support/community site)

== External links ==

*[http://sourceforge.net/projects/mattathias/ Mattathias BASIC] (Open source AMOS compiler, early alpha)

{{wikiversity|AMOS programming language}}

*[http://www.amigacoding.com Amigacoding website] (contains indepth info and references for AMOS)

*[http://team.back2roots.org/Tools/Dev/ Back to the Roots] (Contains full AMOS downloads for Amiga or an emulator)

* [httphttps://wwwweb.archive.org/web/20071130053321/http://clickteam.com/eng/downloadcenter.php?i=58 Source code for AMOS and STOS (68000 ASM)]

*[[UAE (emulator)|UAE]] (Amiga emulator compatible with AMOS and AMOS games, requires Kickstart ROM image)

* [http://amoswww.pspuaeultimateamiga.comco.uk/index.php/page,16/ The AMOS Factory] (Anan AMOS support/community site)

* [http://www.triumphoverchallenges.com/stos-and-amos-game-creators/ History of STOS and AMOS]: how they came to be published in the UK

{{AmigaOS}}

{{BASIC}}

[[Category:BASIC programming language family]]

[[Category:Video game creationdevelopment software]]

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[[Category:Software using the BSD license]]

[[Category:Programming languages created in 1990]]

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