Re: Re: A89: Re: Fw: TI-89 ROM 1.05 vs 2.00 version inquiries

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Re: Re: A89: Re: Fw: TI-89 ROM 1.05 vs 2.00 version inquiries


The HW1's have the same ROM checksum as the HW2s I assume, because you can
send AMS 1.05 to either calc.  The point is that it is much easier to make
our own OS because of the bug that allows AU to work.  This bug does not
exist on HW2, and therefore AU will never work on HW2.

Think about it.  If we already knew the checksum algorithm, why would we
worry about HW2?  We'd be crack'n heads to make our own OS (or just try to
make more math add-ons to Prosit... hehe =) for the 89.

-Miles Raymond      EML: m_rayman@bigfoot.com
ICQ: 13217756       IRC: Killer2        AIM: KilIer2 (kilier2)
http://www.bigfoot.com/~m_rayman/

----- Original Message -----
From: Bryan Rabeler <rabelerb@pilot.msu.edu>
To: <assembly-89@lists.ticalc.org>
Sent: Monday, November 22, 1999 5:06 PM
Subject: Re: Re: A89: Re: Fw: TI-89 ROM 1.05 vs 2.00 version inquiries

> What kind of checksum does HW1 have?
>
> Bryan
>
> ----- Original Message -----
> From: "Miles Raymond" <m_rayman@bigfoot.com>
> To: <assembly-89@lists.ticalc.org>
> Sent: Monday, November 22, 1999 12:22 AM
> Subject: Re: Re: A89: Re: Fw: TI-89 ROM 1.05 vs 2.00 version inquiries
>
> > Actually, as I posted previously, the HW2 isn't all that much better
than
> > HW1.  From what I discern, everything that HW2 is can be put into effect
> on
> > the HW1 save the ROM protection, which is faulty on the HW1.  In my
> opinion,
> > that is what is best about HW1.  Should we eventually figure out how to
> send
> > our own ROM, we could write our own OS for the 89 on HW1.  It still
might
> be
> > possible with the HW2 (decrypt TI's 512 bit RSA checksum...) but it is
> > highly unprobable.
> >
> > -Miles Raymond      EML: m_rayman@bigfoot.com
> > ICQ: 13217756       IRC: Killer2        AIM: KilIer2 (kilier2)
> > http://www.bigfoot.com/~m_rayman/
> >
> > ----- Original Message -----
> > From: Bryan Rabeler <rabelerb@pilot.msu.edu>
> > To: <assembly-89@lists.ticalc.org>
> > Sent: Sunday, November 21, 1999 9:49 PM
> > Subject: Re: Re: A89: Re: Fw: TI-89 ROM 1.05 vs 2.00 version inquiries
> >
> > > But the point is, as time goes on, the number of HW1 calculators will
be
> > > very small compared to HW2 calculators.  Some authors might not care
> about
> > > HW1 calculators and want to use the advantages of the HW2 calculators.
> > >
> > > Bryan
> > *CLIP*
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