Most of the Fit demos were quite easy to port, I just had to adapt the screen conversion routine to use 16 bit-per-pixel instead of 8 or 32 bits-per-pixel modes...
Stercus Accidit was a little bit more tricky, though. First I also had some problems with the Makefile (bad linking order of the archives, and there was a switch for compiling on little endian which I did not enable first), and then the demo had big problems with the sound... the sound functions used a lot of floating point operations for interpolating or so - and the performance of the Dingoo seems to drop a lot when there are a lot of floating point operations involved. So I finally replaced some parts of the music functions with older code from "Jenny Thinks" which was not using floating point there - and then the demo run quite well again :-)
