From: Ed Beroset 
Subject: Re: Rotation encryption
At 15:20 12/27/97, you wrote:
>
>TO: 80xxx@circuit.com
> EB> That technique will fail completely on all
> EB> but the most ancient BIOS.
> PM> ----^^^^^^^^^^^^^^^^^^^^^
>
>Like award 4.5x ? ;-)
>I've gotta check some other BIOSes, but it seems to work fine!
FYI, just because it has a recent copyright date doesn't mean it isn't
ancient code.  Check out Compaq, IBM, Toshiba, Hitachi, etc. and you'll see
what I mean.  
> EB> Actually, the part you can see at F000:0000 is only the tip
> EB> of the iceberg.
>
>"and enough is enough" as Sasami said.
>I've allready checked Award 4.50 and you can get some fine
>candy from it if you know what you're looking for.
If you've found whatever it is you're interested in seeing, that's good.
Just don't be fooled into thinking that your computer is like all others or
that what you see at F000:0000 in real mode is all there is to the BIOS.
Open up the case of your computer and peek at the motherboard.  If you take
a look at the ROM in which the BIOS is located, chances are good that it is
larger than a 64K part.  If you take apart a laptop, it's a virtual 
rtainty.
Ed
-!-
---
---------------