VICE

VICE is an emulator collection which emulates the Commodore 64 (C64), the C64-DTV, the C128, the VIC20, almost all PET models, the PLUS4 and the CBM-II (aka C610).

It runs on Unix, MS-DOS, Win32, OS/2, Acorn RISC OS, BeOS, QNX 6.x, Amiga, GP2X or Mac OS X machines.