On Sun 30 Sep 2012 at 10:05:55 -0700, Steve Gray wrote: > I got some high-res pictures of this board from someone on forum64.de and I was hoping to reverse engineer this board as part of my "UltraPET" project (http://www.6502.org/users/sjgray/projects/ultrapet/index.html). I mention this board on my page. VICE currently doesn't allow SuperPET and 8x96 memory expansions at the same time. My first impression about that was that that would probably be because the expansion connector is incompatible between 8032 and 8296 machines, and/or you can't connect 2 boards to that connector at once. But the SuperPET board(s) don't connect via that connector, so that is a moot point. I didn't try it, but if the restriction were simply removed from VICE with no other changes, I expect that the 8x96 memory would override the SuperPET memory. I.e. if you enable one of the 8x96 expansion banks in the $8000-$C000 range, you would no longer have access to the SuperPET memory at $9000-$A000. In reality, I'd expect the SuperPET memory to override though, since it is "closer" to the CPU (the CPU is moved to the expansion board). I'd think that the former way would be more useful, since keeping the SuperPET memory block visible at all times would make it impossible to access 2 x 4KB of 8x96 memory (4 KB in each of 2 banks). -Olaf. -- ___ Olaf 'Rhialto' Seibert -- There's no point being grown-up if you \X/ rhialto/at/xs4all.nl -- can't be childish sometimes. -The 4th Doctor Message was sent through the cbm-hackers mailing listReceived on 2012-09-30 22:00:09
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