[A83] Re: lcd mem as ram

To: assembly-83@lists.ticalc.org
Subject: [A83] Re: lcd mem as ram
From: Gavin Olson <gtolson@snet.net>
Date: Fri, 04 Jan 2002 14:46:33 -0500
In-Reply-To: <Pine.LNX.4.33.0201041819550.7475-100000@ace>
References: <5.1.0.14.0.20020104163036.03730110@pop.home.se>
Reply-To: assembly-83@lists.ticalc.org



>Wasn't x-incrementing vertical and y-incrementing horizontal? The TIOS
>expects the lcd driver in x-increment mode, but the standard TIOS gbufcpy
>routine switches to y-increment as that makes reading the contents of the
>screen buffer easier. Joe's FastCopy routine uses x-incrementing and uses
>the necessary additions (to get the proper screen buffer data) as delays
>between two writes.

Well, I suppose you could do a side-scroller with the vertical hardware 
scroll, if you had the user hold the calc like a 92 . . .:)

References:

[A83] Re: lcd mem as ram

From: Olle Hedman <alh@home.se>

[A83] Re: lcd mem as ram

From: Tijl Coosemans <tijl@ulyssis.org>