Video memory and the Mac II

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Article #20193

#20193

From: Phil Hunt
Date: Mon, 12 Oct 1987 18:04

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Hello,
 
   I was wondering how the Mac II video memory lays out.  In other words, how
do they make old pgms compatible with the new memory map??   I know the video
display card now contains memory for the display.  But that memory is not 
counted in the system size memory!!  Is the video memory now ABOVE mem max
for the system???  How does it work....???
 
   Also, I have found some old pgms (1984-1986) that run IN COLOR. The old
Cricket Graph 1.0 (Yes, 1.0!!) runs on MY MAC II in COLOR,  so does some
card games.  The diamonds and hearts are in color!!!   Is this a maaping 
between othe old Quickdraw 8 color (IE IM II mapping) and the new CQD???
 
Phil Hunt

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From: hunt@firqb.dec.com (Phil Hunt)
Newsgroups: comp.sys.mac
Subject: Video memory and the Mac II
Message-ID: <11827@decwrl.DEC.COM>
Date: Mon, 12-Oct-87 14:04:31 EDT
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Posted: Mon Oct 12 14:04:31 1987
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