A86: Re: Change the whole TI-89 operating system?

To: <assembly-86@lists.ticalc.org>
Subject: A86: Re: Change the whole TI-89 operating system?
From: "Trey Jazz" <joemama@minot.com>
Date: Sat, 14 Mar 1998 13:18:32 -0600
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org


yeah isnt it great?! i think there will be a little rom chip that does the
updating because it couldnt update the flash rom while it was being used to
control the update and also as a precaution if the chip loses its mem then
it can be put back on

>Flash ROM.. hmm.. if someone knew enough about the TI-89, couldnt they
>actually create there own Z80 operating system??  Like CP/M.. I mean,
>someone could hack the flash rom and make there own freaking rom!! You
>could make it totally different calculator, it could do anything..
>
>Is the flash rom the whole actual rom? I mean, if someone overwrites the
>ROM image with a hacked rom image, and makes a mistake, they couldnt even
>get the original rom back could they? Once you lost the OS, how could u
>upgrade it? I mean it uses the ti graph link to transfer the new rom right?
>Maybe they have a permanent rom that is an interface for transfering new
>roms.. I don't...Weird.. any ideas?
>
>-Matt
>
>

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