Thursday, July 17, 2014

Time to trim the fat

So I've realized real quick that the PPClone design will simply not fit into the Replay board as-is.
Looking at the ROM list (, there's 168kB worth of ROM info to store (nevermind the ram).  The Spartan-3E on the Replay only has enough room for 73kB.  So something's gotta go or I need to abandon the Spartan-3E.  I hate to do that since it's so attractive from a pricing standpoint so I'm looking at the ROM contents themselves to see if any savings can be made.  (large portions of memory with the same patterns in them)

Another possibility would be to store them in external RAM but I'm not sure if I can get the data to the subunits in a timely fashon.  We'll see....

1 comment:

DF said...

You'll figure it out I'm sure.