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Double hires graphics on a ][ [message #72465] Sat, 25 May 2013 10:27
MGRANT is currently offline  MGRANT
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Message-ID: <12360@sri-arpa.UUCP>
Date: Sun, 26-Aug-84 00:14:00 EDT
Article-I.D.: sri-arpa.12360
Posted: Sun Aug 26 00:14:00 1984
Date-Received: Wed, 15-Aug-84 06:40:35 EDT
Lines: 18

From:  Michael Grant 

This is an interesting idea.  I have pondered this a while once.  You know
apple already supports a double density hires thingy on the ][e.  I 
believe it makes a 560 X 192 display.  the second page of memory comes from 
the upper 64K of the ram card.  What you may be interested in doing is
creating a Double-Double hires graphics.  That is, take the two page
twos (one normal, the other from the extra 64k card) and interlacing or
juxtapose vertically with the page ones, thus Quad drupling the screen!
Now, if you don't just happen to have a ][e with a 64k board, like me,
this would still give you double density graphics without creating a
double standard.  That is, one would be double long, the other would be
double wide, but the intention would have been to combine them in the
first place!

I'm not totally convinced this is worth the time, but it is sort of neet
to think about.
-Mike Grant
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