we already have the basic Nohau board,
but you have to buy an additional
board for Trace (not cheap), and i
don't think the trace depth covers
the full size of the PROM.

i have downloaded ucsim, a freeware
simulator (with source) for unix, and
i'm adding address logging to every
line that changes the program counter.
this should be enough for simple
coverage analysis.

james