.---------------------------.      ____                 _        ____    _    ____ ___ ____
        /---------------------------/|     / ___|_ __ _   _  ___| |_ _   | __ )  / \  / ___|_ _/ ___|
       /| _________________________ ||    | |   | '__| | | |/ __| __| | ||  _ \ / _ \ \___ \| | |
      | | |                       | ||    | |___| |  | |_| |\__ \ |_| |_|| |_) / ___ \ ___) | | |___
      | | | 10 PRINT "CRUSTYBASIC"| ||     \____|_|   \__,_||___/\__|\__,|____/_/   \_\____/___|____|
      | | | 20 GOTO 10            | ||                                |___/
      | | | RUN                   | ||
      | | | _                     | ||
      | | |_______________________| ||
      | |  _           _        _   ||    .----------.
      | | |_|_________|_|______|_|__|/    | [======] |
      /_____________________________/     |    __    |
      |_____________________________|     |   |  |   |
        [_][_][_][_][_][_][_][_][_]       |___|__|___|
        [_][_][_][=======][_][_][_]

            \ )             ( /
             \ \__~^~^~^~__/ /
      _______-<   \ o   o /  >-_______
     ----------|    \___/   |----------
               \___________/

crustyBASIC

CrustyBASIC is a Rust-based BASIC cross-compiler for 80s era computers and consoles. It compiles BASIC source into native machine code to run faster. It is available for Windows, MacOS, and Linux.

Currently supported targets:

• Apple
  • ][+, //c, //e
• Atari
  • 400/800/XL/XE
  • 5200
  • 2600
• Commodore
  • 64/64u
  • 128
  • Plus/4
  • VIC-20
• Tandy/Radio Shack
  • Coco 1,2,3
• PC
  • MS-DOS 16-bit
  • Windows 64 bit GDI and console (Win XP...Win 11)
• Nintendo
  • NES

Downloading the Compiler

To download the latest compiled binaries, visit the Releases Section.

Quick Start

Save the below text as hello.cbs:

@OPTION TARGET c64

CLS
POSITION 0, 0
PRINT "HELLO, WORLD!"

Compile it to assembly:

crustybasic compile hello.cbs -o hello.s

Build a runnable C64 .prg in one shot. This requires an assembler to be staged (in this case vasm); see USAGE.md#assemblers.

crustybasic build hello.cbs -o hello.prg

Screenshots

Screenshots and emulator pics are in screenshots.

Submitting Bugs

Please submit bug reports through the GitHub Issues tab above. Include the CrustyBASIC version, your operating system, the target or system you are building for, the command you ran, and any compiler or assembler output.

Small self-contained .cbs files are the easiest reports for me to reproduce.

Learn more

• Usage guide - commands, targets, dialects, assemblers, and examples.
• Language reference - core language syntax.
• API reference - portable runtime calls, graphics, sound, input, and target capabilities.
• Target documentation - machine-specific notes for supported targets.