GFA Basic

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GFA BASIC is a very popular dialect of the BASIC programming language on the Atari ST.


GFA BASIC, sometimes spelled GFABASIC, has a list of nice features which distinguishes it from other BASIC dialects, both on Atari ST and other platforms.

  • no line numbers
  • single statement per line
  • exhaustive supply of control flow and structure statements
  • large range of graphics commands
  • ability to call machine code or 'C'
  • full access to Atari ST hardware and TOS
  • access to VDI and AES
  • full screen editor with integrated debugging facilities and syntax checking
  • automatic code formatting and indenting
  • subroutine folding
  • compiler available
  • very easy to learn

Various stuffs