8ASIC is a BASIC language interpreter, loosely based on BASIC interpreters of the 8-bit era, like those found on the ATARI 800, the Commodore C64, or the Sinclair ZX Spectrum. It was designed to run old-school BASIC programs, without being an emulator of any particular machine.
Windows 10 (.msi)
Mac OS X (.dmg)
Manual (.pdf) — included in both versions