Re: RAM limit for IIGS?

[treiter@comet.net (Toby Reiter)]

In article <4jjc97$ht9@borg.svpal.org>, wily@svpal.svpal.org (Paul
Creager) wrote:

>Ben Lai (Ben_Lai@mindlink.bc.ca) wrote:
>: What is the maximium MB of RAM that is usable by an Apple 
>: IIGS?  8 Megabytes?
>
>: I have been trying to figure this out for a while but 
>: I keep getting different answers from people.
>
>8 MB is correct.  What may be confusing is that the 65816 has a 16 MB 
>directly addressable limit (24-bit address bus), but Apple only 
>implemented 23 lines, thus limiting it to 8 Megs.
>
>I _think_ you can also have up to 1 or 2 Megs of ROM in addition to the 
>RAM.  However the memory card has to be specially designed to provide the 
>ROM and I'm aware of none ever being made for that purpose.  (ROM and RAM 
>on the same card.)
There were indeed several cards which could do this.  One had two megs of
both ram and rom on the same card (forget the name).  In addition, there
was a rom piggyback card for AE's GS-Ram+.

-- 
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                         |OBYLARONIOUS
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