Hallo allemaal, In my previous mail I also had the plan to ask you what the best way is to expand a C=. (that's what the subject "memory expansion" originaly was meant for). But personal circumstances forced me to stop writing so I sent it with the question. FUNET provides a way to expand, the memmory of a C64 or C128. The big problem is you won't find SW to support it. Looking from the SW side, you'll find three systems: 1) GEOS-RAM 2) the REU and 3) CMD. CMD is capable of expanding up to 16 MB. My first thought was to use the same trick until I realised that the trick was the fact they used the 65816. This is not exiting as I already made a design based on this principle. But it triggered a chain reaction: if they use the 65816, how about the I/O area of the 6510? There are, AFAIK, only two solutions: 1) the 65816 tells the 6510 in some way to perform the needed actions. 2) even if the 6510 is disabled, it is possible to adress the I/O area. I think it is solution #2. Is this a known fact, or can this be checked? This would mean I can simplify my own design. And if it can be simplified, why not designing using the known specs of CMD. What kind of technical info of the Super-CPU is available? Thanks for any info. Groetjes, Ruud - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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