[A83] Re: Checksums
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[A83] Re: Checksums
OK, thanks for that file format link. So it's the last 16 bits of the
sum of the data section. Now to write a program to do it for me (I'm
lazy) :)
- Colin
AIM: baseballguy087
MSN: baseballguy087@gamebox.net
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Email: baseballguy087@gamebox.net
-----Original Message-----
From: assembly-83-bounce@lists.ticalc.org
[mailto:assembly-83-bounce@lists.ticalc.org] On Behalf Of David Phillips
Sent: Friday, 12 September, 2003 21:20
To: assembly-83@lists.ticalc.org
Subject: [A83] Re: Checksums
PBC Guild writes:
> How are checksums calculated, anyway? If I could calculate checksums
> for some of my favorite shareware games, I might be able to make new
> maps.
I wasn't aware there were any "shareware" games for the TI-83. If you
are
talking about the format of .83p files, then see this reference:
http://gladstone.uoregon.edu/~tsinger/link/TI-83/
As for checksums in general, there are lots of algorithms. Popular
algorithms include CRC-32, MD5 and SHA1.
http://www.faqs.org/rfc/rfc1321.txt
http://www.faqs.org/rfc/rfc3174.txt
http://cr.yp.to/hash127.html
--
David Phillips <david@acz.org>
http://david.acz.org/
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