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Re: RAM cards for IIe



Michael J. Mahon wrote:


Moll wrote:



Wayne Stewart wrote:


Paul R. Santa-Maria wrote:



Okay, Bill, now that you have the 4MB IIgs
RAM card done, how about a Slinky clone
that holds 64MB (four 16MB SIMMs)?

I think the Slinky uses three bytes for
addressing, so 16MB (four 4MB SIMMs or
one 16MB SIMM) might be the limit for
compatibility.

Even 4MB (four 1MB SIMMs) would
still be nice in an Apple IIe.



Personally I'd sooner have a RamWorks compatible card for the
IIe Auxiliary slot.

Wayne
Which should apparently max out at 3 MB (as EMU][ does)... of course, no program seems to grok that much RAM even if they do grok RAM Works... O.O 


Curious.  Hard to imagine a straightforward logic design which
would set a bank limit at 3MB.  If the "easy" thing were done,
the bank select register would be 8 bits, making the maximum
16MB.


If memory serves, 8 megs was the limit for bank switching on the II

Roy



Has anyone reverse-engineered the RamWorks or a RamWorks-
compatible card?

-michael

Check out parallel computing for 8-bit Apples on my
Home page:  http://members.aol.com/MJMahon/




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