Hello! Rob Clarke wrote: > Have you tested that? I couldn't find any evidence that the decoding > logic in the 6703 had ever been fully documented. It's possible that > /EXRAM may be active up to $3FFF. Yes, I checked that. Both in the MAX and in C64 in MAX mode there is nothing above $1000. PEEKing values from 4096+ just return random stuff (MAX) or zeroes (C64). The RAM that sits at /EXRAM is not mirrored up above. > But even if it does, what then? I suspect even the MAX Basic ROM does > not intelligently probe for usable memory and the extra 2k of RAM is > hardcoded. So yes, we could probably fix the ROM to use the extra RAM Of course :-) > but I have no intention of typing in 32k BASIC programs on a MAX > keyboard anytime soon. :-) You could just load them form Datasette ;-) In fact, if given enough RAM, then many BASIC programs from the C64 would work wuthout modification. Regards, Michau. Message was sent through the cbm-hackers mailing listReceived on 2013-10-20 18:00:03
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