Hmm, yeah combel could cost you a bit. I thought
it would be strange for a little of it to go.
I would have though it might be to do with the
major overclocking you gave it, combel takes
full grunt of the extra speed. You could make one
but it depends how much knowledge or parts you have.
It adress decodes, pretty easy but some other
things like the timings
would have to be done from a working one
and map into another part like Lattice
or Xilinx.