> On June 12, 2018 at 11:12 AM Mia Magnusson <mia@plea.se > <mailto:mia@plea.se>> wrote: > > > > Nice! > > Seems like your expansion might be able to have a REU compatible mode > in the future :) Long in the future, perhaps. I suspect that handling all of the functionality in an REU will thwart my efforts. To add content worthy of this group: Looking at the functionality of the REU, I noticed the "swap" functionality, and I wonder if one could perform 2 actions in 1 half PHI2 cycle. I think the DRAM is 200nS or better, and maybe with that or with 150nS DRAM, a cart could place the address and set R/W to be a read for the first half of the high PHI2 cycle, and then change to a write halfway through with new data on the data bus. That would allow a swap to occur in half the time. I am sure there's some reason why it won't work, but it seemed an idea worth considering. JimReceived on 2018-06-12 21:00:04
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