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From: ericm@sage.cc.purdue.edu (Eric Mulholland)
Newsgroups: comp.sys.apple2
Subject: Re: non-DMA at 4 Megs (GS)
Message-ID: <4867@sage.cc.purdue.edu>
Date: 3 Nov 90 19:52:05 GMT
References: <3143@skivs.UUCP> <4866@sage.cc.purdue.edu> <1990Nov3.121558.7963@ux1.cso.uiuc.edu>
Organization: Purdue University Computing Center
Lines: 16

In article <1990Nov3.121558.7963@ux1.cso.uiuc.edu> jb10320@uxa.cso.uiuc.edu (Desdinova) writes:
>   The limit of memory expansion is based on one and only one thing-
>only four rows of RAM are directly supported by the IIgs and it's
>DMA scheme.  Four rows = 1Meg with 256K chips, or 4Meg with 1Meg chips
>(SIMMs or what not).

My question is about DMA not amount of ram.  Everyone says the GS can
only handle 4 megs of DMA ram (8 megs total).  I have a rom 1 GS (256K)
and a 4 meg ramcard (supports DMA) thus giving me 4.25 megs of memory.
Of this 4.25 megs, can DMA access all of it or is the last 256K on the
ramcard non-DMA?
-- 
     ____
 Y_,_|[]|   Eric Mulholland
{|_|_|__|   ericm@sage.cc.purdue.edu
//oo--OO    ...!pur-ee!sage.cc!ericm