[A83] Re: DS Thread Extended onto this list

[A83] Re: DS Thread Extended onto this list

• To: <assembly-83@lists.ticalc.org>
• Subject: [A83] Re: DS Thread Extended onto this list
• From: "Joe Pemberton" <joe@joepnet.com>
• Date: Tue, 10 Dec 2002 21:24:44 -0800
• References: <000001c29d36$7f937440$e86f668b@ELMO> <27308.1039384409@www35.gmx.net> <5.1.0.14.0.20021210174340.00a709a0@mail.comcast.net> <5.1.0.14.0.20021210205928.00a711d0@mail.comcast.net>
• Reply-To: assembly-83@lists.ticalc.org

> At 04:29 PM 12/10/2002 -0800, you wrote:
> >Pardon my ignorance in these things, but wouldn't making a modded OS be
as
> >simple as disassembling the .8xu, changing some stuff around and fixing
> >whatever checksum it might have?
>
> Yeah.  The checksum.  THAT's the hard part.  Do you have a few months of
> computer time to crunch the encryption key?  You can mod the 8xu all you
> want, and even load it into VTI (See, to emulate the restriction, you'd
> have to know how to check for it, thus how to break it . . . ) but when it
> comes time to do the flash of the calc, it no work.
>
>

I take it then that this checksum isn't some simple CRC or something?  Has
anyone on this list ever looked into this area?

- - Joe
joe@joepnet.com

• [A83] Re: DS Thread Extended onto this list
• From: robvanwijk@gmx.net

• [A83] Re: DS Thread Extended onto this list
• From: "Scott Dial" <scott@scottdial.com>
• [A83] Re: DS Thread Extended onto this list
• From: robvanwijk@gmx.net
• [A83] Re: DS Thread Extended onto this list
• From: Gavin Olson <gtolson@comcast.net>
• [A83] Re: DS Thread Extended onto this list
• From: Gavin Olson <gtolson@comcast.net>

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