Posted By
siz
on 2023-03-19
15:34:37
|  Re: New Project: Hannes-compatible 256k RAM Expansion
@TLC: I tend to disagree. A bit. Perhaps the intention was to work as You wrote and the discrete logic gate count was reduced to check the difference only. Or perhaps Solder ran out of GAL space so he tried to simplify the equations. But the original Hannes+Csory expansion is the discrete logic one. The GAL version should be backward compatible with that.
Tomorrow I'll try to dig up the handdrawn schematics given to me by Csory himself. 
|
