The only thing that disturbs me a bit with the daisy thing is that it is called z80daisy, there should rather be a didaisy.cpp or something to derive variants from, there are daisy chain signals in the vme bus also but it feels wrong to use anything 8 bit or Zilog near anything Motorola 16-64bit like the VME bus. I might get there one day with a pull request, who knows :-)