[ton]

I also used cygwin. Although I said above that it was too complicated for me, after studying the guide and some trial and error, I finally succeeded in the compiling thing. Now I still have to learn the patching.
But I assume that the very nice simulator you made is not exactly as it comes out of cygwin ? I mean: You added the surrounding picture of the H120 somehow? The simulator I succeeded to make with cygwin consists only of an imitation of the lcd screen.