Re: RAM cards for IIe

[mjmahon@aol.com (Michael J. Mahon)]

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.

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

-michael

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