Re: A89: the VAT

To: assembly-89@lists.ticalc.org
Subject: Re: A89: the VAT
From: Daniel7073@aol.com
Date: Tue, 12 Jan 1999 00:51:07 EST
Delivered-To: assembly-89-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-89@lists.ticalc.org

In a message dated 01/11/1999 9:47:55 PM Pacific Standard Time,
helious_c6@hotmail.com writes:

> A simple ROM upgrade will not move the VAT, things like the VAT,
>  bootsector, certificate for the ROM, and the linking routines, are all
>  stored in protrected Flash Memory. It's just like taking a floppy disk
>  and write-........because they're some of the best "Math" courses you
>  can find! Well, them and Calculous BC-AP, as well as EC-101! Plus, I 
>  have
>  one thing that I'm sure very few of you have, if any at all, I have a
>  girlfriend!

The VAT is stored in RAM.  If it was in the Flash ROM, then every time you
added or deleted a file, it would write to the Flash ROM, which would degrade
your calculator's Flash ROM very quickly.
Take the Ti -89 BASIC program FlashRom for example.  This program continuously
Arachives and Unarchives an empty string variable.  I don't know why anyone
would post a program like this, but the net effect is that the calculator's
Flash ROM is written to so many times that it finally degrades.

Daniel Imfeld

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Re: A89: the VAT

From: Bill Risher <billr1@midsouth.net>

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