cbm
====== Commodore BASIC ======
{{tag>cbm}}

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The BASIC used in the famous 8-bit Commodore machines such as PET, VIC-20, C64, 16, Plus/4 and C128. Originally, it was pretty much the Microsoft port of its [[:basics:ms80basic|BASIC-80]] for the 6502 processor, later improved by Commodore developers into a number of versions with some meaningful differences. None of them however was nearly as popular as the rather crude one known as **V2**, which is the baseline to what this site refers to as "Commodore BASIC".  

===== Where it is/was used =====
  * PET
  * VIC-20
  * Commodore 64/64c
  * Commodore C128
  * Commodore C16
  * Commodore Plus/4


===== Noteworthy characteristics =====
/* TO DO: a list or prose text about this BASIC's features, quirks, Easter eggs, tricks, singularities... */


===== Environment and usage =====

/* TO DO: notes about the REPL or IDE used, keyboard shortcuts and commands, command-line options for compiling and linking, environment variables which might be set... */


===== Extensions =====
/* TO DO: Famous libraries tools and extension packages made for this BASIC */

  * [[.:cbm:Simons1|Simons BASIC]]

===== Curiosities =====
/* TO DO: Historical notes, anecdotes, what people said about it */


===== Related to... =====
/*   * **[[basicTagName|basicTitle]]** - TO DO: a brief description of the relation they have with this one */


==== Influenced by ====
/*  * **[[basicTagName|basicTitle]]** - TO DO: which are the noticeable or assumed influences */


==== Influence for ====
/*  * **[[basicTagName|basicTitle]]*** - TO DO: which are the noticeable or assumed influences */


===== Versions and successors =====
Commodore's numbering scheme for the versions of its BASIC was, well, awkward. It does not follow the chronological order of releases as told by Wikipedia, here simplified:

  * After V1 for the PET 2001 with calculator keyboard, came the first release of V2 for the newer PET 2001
  * **[[~:cbmv4|Commodore BASIC V4]]** was launched with the PET/CBM 4000 and 8000 series
  * Then V2 had its second release with the VIC-20, and would later be used with the C64 as well
  * **[[~:cbmv4plus|Commodore BASIC V4+]]** was then released with the CBM-II machines
  * **[[~cbmv3.5|Commodore BASIC V3.5]]** came with the C16 and Plus/4 machines
  * **[[~cbmv7|Commodore BASIC V7]]** was the last released version with the C128
  
  * **[[https://github.com/mist64/cbmbasic|cbmbasic]]** is an open-source, portable C version of Commodore BASIC V2 which claims to be 100% compatible and has been tested on MacOS X, Linux and Windows NT. 


===== References =====
/*
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  * https://www.c64-wiki.com/wiki/Main_Page - the C64-Wiki
  * //Commodore 64 Programmer's Reference Guide//. Commodore Business Machines, Inc., 1982. Available at https://archive.org/details/commodore-64-programmers-reference-guide_202205 , last check 2023-03-08
  * https://en.wikipedia.org/wiki/Commodore_BASIC , last check 2023-03-08

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