It's good to see that people are working on cross compilation for DSP :) I went a slightly different way: I use the official Motorola asm56000 compiler for MS-DOS that I run under DOSBOX on Linux. It works briliantly and there's no need to recompile (provided you have DOSBOX on your Linux release), it works exactly as on the Falcon version... apart it goes very fast (it was slower than a snail on Falcon).