bm2 is an emulator for the Hitachi Basic Master Jr. home computer. The
latest versions of it and related utilities are found on the emulator's
home page on ver0.sakura.ne.jp.
Older versions of the software are removed from that site when a new version is posted; this archive contains those older versions. This can be useful for serveral reasons:
- Systems that automatically download the source code archive won't break when a new version is released.
- The current version on the home page doesn't always work; e.g. the 20241027 version doesn't compile as-is on Linux.
You can also find some (but not all) older versions on this page on archive.org. Enter "bm2" in the "filter results" box to see them more easily.