Article View: comp.sys.atari.st
Article #38025Re: ST 4 meg limit
From: Richard Dankert
Date: Sat, 15 Apr 1989 02:23
Date: Sat, 15 Apr 1989 02:23
25 lines
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1484 bytes
In article <5271@cs.Buffalo.EDU> ugbernie@cs.Buffalo.EDU (Bernard Bediako) writes:
>
>Will Tos 1.4 allow the ST to use more than 4 megs of memory (that IS all it can
>address right?). Also, is MINIX limited to 4 megs? It doesn't use Tos.
>Or is the 4 meg limit set in the hardware?
> thanks
> bernie
>
>Bernard Bediako --------=-=-=-=-=-> DOMAIN: ugbernie@cs.buffalo.edu
>"You CAN have your cake and eat it!"
I don't belive that TOS or GEM have anythingto do with it. What it
boils down to is the MMU (Memory Management Unit) or better yet, the
MCU ( Memory Control Unit) that is the problem. It can only address two
banks of ram. Now when the 16 MegaBit Dram that I had heard was developed in
Japan (?) comes around at a reasonable price, one bank would equal 16 Meg.
TOS has (had?) a limit of 16 Meg, and GEM had a limit of 32 Meg.
Last I knew the 16 Meg Hard drice barrier had been broken in TOS 1.4, thus
allowing partitions to be 32 MEG, besides other nice fixes/enhancements.
rich.....
UUCP: rich@lakesys.lakesys.COM {always .... }
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!csd4.milw.wisc.edu!marque!lakesys!rich From: rich@lakesys.UUCP (Richard Dankert) Newsgroups: comp.sys.atari.st Subject: Re: ST 4 meg limit Message-ID: <547@lakesys.UUCP> Date: 15 Apr 89 02:23:52 GMT References: <5271@cs.Buffalo.EDU> Reply-To: rich@lakesys.UUCP (Richard Dankert) Organization: Lake Systems - Milwaukee, Wisconsin Lines: 25