UAE4ALL is an open source Amiga 500 emulator. Changes:

  • more accurate emulation.
  • more stability.
  • new Superthrottle mode to speed up intros and loadings.
  • you can now save to the VMU.
  • 2 Floppy drives emulated.
  • ADZ file support (ADF files, gzip compressed)
  • some SDL related problems solved.
  • uses the new (last) FAME 68k core.

    http://chui.dcemu.co.uk/uae4all.html