> > On Fri, 10 Feb 1995 10:59:14 +0000 (GMT), Nigel J Kettlewell said: > > This is true of just about any processor, though - accessing memory is > > the slowest thing it can possibly do (barring floating point, perhaps) > > True. However, in this case the ASIC makes the problem worse by limiting > access to one every 4 6MHz cycles even though the Z80 can manage one every > 3 cycles (which is I think still five times as long as the RAM's access > time).
OK, so how about putting in your own RAM as well as a new CPU? Memory's cheap, despite what SAMCo et al used to charge for it. That way, surely you could stop the CPU caring what the ASIC says about RAM? I'm probably wrong, as I've not really done much SAM stuff for _ages_. > > imc > Nige -- +----------------------------------------------------------------------------+ | "You've got to look at it from a fork's point of view" (Dr Steve Matthews) | +----------------------------------------------------------------------------+
