Re: Video memory on Mac II

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Article #18993

#18993

From: Michael S Czeiszperger
Date: Fri, 11 Sep 1987 12:52

21 lines
1584 bytes

In article <2819@husc6.UUCP> olson@endor.UUCP (Eric Olson) writes:
>>taken from regular virtual memory, or is it contained
>
>Picky point:  No virtual memory on the Mac II (Yet).
>

I'm guilty of using the term virtual memory without knowing it's
exact definition.  I've designed and built video memory addressing
schemes for small microprocessors, but havn't ever worked with
an operating system to know the difference between memory that
is read by the video chip, memory that contains cpu instructions,
and memory that is used to store data.

Could someone clarify this point?

Michael S. Czeiszperger           | Disclaimer: "Sorry, I'm all out of pith" 
Sound Synthesis Studios           | Snail: Room 406 Baker     Phone: (614)
College of the Arts Computer Lab  |        1971 Neil Avenue            292-
The Ohio State University         |        Columbus, OH 43210           0895
UUCP : {decvax,ucbvax}!cbosgd!osupyr!czei

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Path: arc1-ca.pugleaf.net!utzoo!mnetor!uunet!husc6!hao!oddjob!gargoyle!ihnp4!cbosgd!osu-cis!osupyr!czei
From: czei@osupyr.UUCP (Michael S Czeiszperger)
Newsgroups: comp.sys.mac
Subject: Re: Video memory on Mac II
Message-ID: <182@osupyr.UUCP>
Date: Fri, 11-Sep-87 08:52:06 EDT
Article-I.D.: osupyr.182
Posted: Fri Sep 11 08:52:06 1987
Date-Received: Sat, 12-Sep-87 18:25:53 EDT
References: <162@osupyr.UUCP> <2819@husc6.UUCP>
Reply-To: czei@osupyr.UUCP (Michael S Czeiszperger)
Organization: Mathematical Sciences Computer Lab, Columbus, OH
Lines: 21
Keywords: memory ram mac video

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