cc65 is a complete cross-development package for 65(C)02 systems, including a powerful macro assembler, a C compiler, linker, archiver, simulator and several other tools. cc65 has C and runtime library support for many of the old 6502 machines. For details look at the cc65 web site:
| Company / People | Machine / Environment |
|---|---|
| Apple | Apple II |
| Apple IIe enhanced | |
| Atari | Atari 400/800 |
| Atari 2600 | |
| Atari 5200 | |
| Atari 7800 | |
| Atari XL | |
| Lynx | |
| Tangerine | Oric Atmos |
| Eureka | Oric Telestrat |
| Acorn | BBC series |
| Commodore | C128 |
| C16 | |
| C64 | |
| CBM 510/610 | |
| PET | |
| Plus/4 | |
| VIC-20 | |
| VTech | CreatiVision |
| Commander X16 Community | Commander X16 |
| Bit Corporation | Gamate |
| Berkeley Softworks | GEOS (Apple/CBM) |
| LUnix Team | LUnix (C64) |
| Nintendo | Nintendo Entertainment System (NES) |
| Ohio Scientific | OSI C1P |
| MOS Technology, Inc. | KIM-1 |
| NEC | PC Engine (PCE) |
| Dr. Jozo Dujmović | Picocomputer (RP6502) |
| Watara | Watura/QuickShot Supervision |
| Synertek | SYM-1 |
A generic configuration to adapt cc65 to new targets is also around.
cc65 is originally based on the "Small C" compiler by Ron Cain and enhanced by James E. Hendrix.