CompuServe Messages

Yea, I do work for CBM. About all that I can say is that $C00000 is a 1.2 supported area for a possible on-board cheap memory expansion, like the one I posted here. If you've got any Amiga expansion specs, you'll notice that $C00000 is listed as reserved memory. Thus, NOTHING that hooks up to the expansion port is allowed to use this memory. Whether CBM or anyone else markets a thing. Properly executed expansion hardware is told by 1.2 where to go, so this is never a problem anyway. Since nothing that hooks up is located at a fixed address, and nothing that hooks up will ever be located in reserved memory at $C00000, its a safe location to use. This is not to imply that a future Amiga system wouldn't use the $C00000 area for something, but as that's an internal system issue, not an expansion issue, there's no possible conflict. You can (and really should) put the piggyback RAM at $C00000, if you're going to put it anywhere. That's something officially supported by OS 1.2. As for my modifications, that's something that I've come up with, and I believe will work well. Its not officially blessed by C-A or CBM in any way, shape, or form, from a hardware point of view. Of couse, neither is the original piggyback modification. -Dave (who REALLY works for Commodore Technology, often confused with CBM, since they're different branches (Engineering vs. Manufacturing) of the same international corporation.)