Difference between revisions of "A-code"

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The A-code interpretation language was developed by [[Level 9]] around 1979, to create their text based adventure games.
 
The A-code interpretation language was developed by [[Level 9]] around 1979, to create their text based adventure games.
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It was very advanced for its time. One of its strong points was the high compression on text. That compression allowed quite big games fit into very limited computers and mainly distributed by cassettes.
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The resultant code was common for all platforms, some smaller machines had shorter descriptions though.
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==A-code Versions==
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According with [[Stefan Meier]][https://www.lysator.liu.se/adventure/systems/A-Code.html] there are 4 versions of the A-code:
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* A-code v1: Used for the very first [[Level 9]] games. Spectrum games in this format had black text on a grey background.
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* A-code v2: Used for [[Level 9]] games released between 1984 and 1985. It introduced the yellow text on a black background which would later become standard.
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* A-code v3: Introduced in 1986, it was the version used for the largest number of games.
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* A-code v4: Introduced in 1987, it was used on all new games from then on.
  
 
==Links==
 
==Links==
 
* [https://github.com/DavidKinder/Level9/blob/master/level9.txt Level 9 Interpreter].
 
* [https://github.com/DavidKinder/Level9/blob/master/level9.txt Level 9 Interpreter].
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* [https://en.wikipedia.org/wiki/Level_9_Computing#A-code Wikipedia's A-code section].
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* [https://www.lysator.liu.se/adventure/systems/A-Code.html Stefan Meier's website].
  
 
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{{DEFAULTSORT:A-code}}

Latest revision as of 09:40, 15 May 2019

The A-code interpretation language was developed by Level 9 around 1979, to create their text based adventure games.

It was very advanced for its time. One of its strong points was the high compression on text. That compression allowed quite big games fit into very limited computers and mainly distributed by cassettes.

The resultant code was common for all platforms, some smaller machines had shorter descriptions though.

A-code Versions

According with Stefan Meier[1] there are 4 versions of the A-code:

  • A-code v1: Used for the very first Level 9 games. Spectrum games in this format had black text on a grey background.
  • A-code v2: Used for Level 9 games released between 1984 and 1985. It introduced the yellow text on a black background which would later become standard.
  • A-code v3: Introduced in 1986, it was the version used for the largest number of games.
  • A-code v4: Introduced in 1987, it was used on all new games from then on.

Links