Hi, 2010/4/6 Dan Ingalls <Dan@squeakland.org>:

I think you know of my JSqueak project (a.k.a. Potato) -- a Squeak VM written in Java.  The image that I used with it, is the same that I always use for this kind of experiment -- mini.image built in Squeak 2.2. The reason it is so cool is that it includes browser, editor, compiler, inspector debugger, and files -- everything you need for self-support.  Plus it has the decompiler, and special temp-name hack, so you can actually browse sources with temp names before any file system works.  My favorite thing about this image is that although it is only 600k, if you decompile all its sources, it comprises over 850k of Smalltalk, so it's like a compressed version of the sources with a full-function IDE thrown in for free ;-). ... I haven't looked recently, but I think you'll find Mini2.2.image or something like it in the same place where all the historical releases of Squeak are kept.  Let me know if you can't find it.

let me add that the project - it is unfortunately in a somewhat dormant state due to lack of manpower - can be found here: http://sourceforge.net/projects/potatovm/ Some extensions to the original JSqueak were implemented; mostly they had to do with colour and font handling. The VM also includes an optimisation for Large...Integer objects, utilising Java BigIntegers as shadows. HPI students once approached a JIT compiler (not finished); the code is available by request. Best, Michael