Re: A86: VBL Interrupt???

To: <assembly-86@lists.ticalc.org>
Subject: Re: A86: VBL Interrupt???
From: "Matt2000" <matt2000@gte.net>
Date: Fri, 8 May 1998 15:02:58 -0400
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org



>I've found it in source code of grayscale library for Ti-85.
>Before I put it into my source code, sometimes pages wasn't flipped
>correctly.
>Maybe it means, that LCD is now refreshed an we can change displayed RAM
>area.


Hmm.. I wonder what vbl stands for. Someone needs to update the 86ports.txt
file (Alan Bailey ;))

Matt2000 wrote:

>  What is a VBL Interrupt? Can someone be specific? I heard it
> mentioned when looking over the source to GSL, the Grayscale Library.
> I think it has something to do with port 3, but that doesnttell me
> much Later,    Matt

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