So it's clear now: staapl is an experimental toy. I don't think I can ever climb the mountain of compatibility with C. Staapl probably only makes sense in either a PIC architecture, or on a real stack machine in i.e. an FPGA. Trouble is that this is a work of passion, of a bit crazy ideas, and currently there's a bit too much wind ahead to make this a fun project.. So what to do?