What I do know, is that it emulates 1, 2, and 4 MB memory configurations.
This emulator is in Italian, so I can't tell you too much about it. Only the changed files are included in the binary and the source. This patch updates to build 143 and fixes the gamma ramp for Escape Velocity Nova (EVN). Most features work under Win9X, but not all, since it was designed for Windows NT and Windows 2000. It runs MacOS 7.x or 8.x (7.0 not recommended) and has color video support.
Basilisk II is a multi-platform 680x0 Macintosh emulator.