Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!cuae2!ihnp4!ihlpm!jmdavis
From: jmdavis@ihlpm.UUCP
Newsgroups: comp.sys.apple
Subject: Applevision (I was wrong, almost)
Message-ID: <890@ihlpm.UUCP>
Date: Fri, 13-Feb-87 09:44:29 EST
Article-I.D.: ihlpm.890
Posted: Fri Feb 13 09:44:29 1987
Date-Received: Sat, 14-Feb-87 14:29:00 EST
Organization: AT&T Bell Labs, Naperville, IL
Lines: 56
Keywords: Stop all those cards and letters



) >
) >
) >program used a special timing loop to flip back to the text page
) >from the graphic page so that SINGLE CHARACTERS on the text page
) >could be displayed on the graphic page.  In the animation the
) >
) >			Mike Davis
) >			
) 
) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
) 
) If I recall, Applevision, as it was called, used a character generator.
) I think that this can be shown when a user halts the program via
) a break.  The integer basic break notice appears as well as the prompt.
) 
) paul nakada
) 
) =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
) 
) 
) 
) WROGO, MIKE!
) 
) It is not possible to access the page switches fast enough to display
) the width of a single character.  The minimum width is 1/4 (maybe
) 1/6) of the screen.
) 
) Chris Schumann			schumann@puff.wisc.edu
) 
) 

Well, maybe I was wrong about Applevision, at any rate I have the
following for my defense.
	1) There really was an interview with this bishop fellow
	where he told you how to flip pages (or something) so that
	a line of text on the text screen can appear on the hires
	screen.  (I thought a single char was too little an amount
	but wasn't sure.)  If this causes still more doubts then I
	guess I will have to go dig that article up and post it.
	2) the reason that I thought this method was used in
	Applevision was due to the characters O and HOME SWEET HOME
	appearing on the text screen after hitting reset in the
	same position that thye occupied on the graphic screen.
	
The bishop article I reference includes a program to illustrate
the method.  I have run it and can state that it puts lines (how
many I don't remember) on the hires screen without a character
generator.


	Mike Davis

After beaten into submission our hero quietly returns to his lair where
a warm comfy bed and a glass of milk await him.