RE: Gottlieb / Q*bert scripts for the 9010A/9100

I wrote one of these a few years back. It's part of my Atari Cat Box
signature analysis write-up which is held at
http://www.gamearchive.com/video/manufacturer/atari/vector/signatures/

It includes a very simple program source code (to aid understanding) to do
what you mentioned in MS DOS QBasic for the Cat Box.

You could quite easily use it as a base to write your own, or simply change
the polynomial in mine and it'd do what you need.

How did you work out the ploynomial?

Cheers,
Phillip Eaton

> -----Original Message-----
> From: owner-techtoolslist@www.flippers.com
> [mailto:owner-techtoolslist@www.flippers.com]On Behalf Of John Robertson
> Sent: 06 May 2002 22:03
> To: TechToolsList@flippers.com
> Subject: Re: Gottlieb / Q*bert scripts for the 9010A/9100
>
>
>
> What we need is for some bright person to write a simple utility that
> converts data files to signatures. The signature formula is fairly simple
> and if combined with Bill Ung's ROMSUM would be a nice tool for our
> package. If you don't know ROMSUM it is a dos utility that will give a
> checksum listing plus the ROM size for a single or group of files...
>
> The Signature process is a CRC process that uses the following feedback
> equation: X(to the 16th) + X(to the 12th) + X(to the 9th) +X(to
> the 7th) +
> 1 or
> P(X) = X(15th) + X(9th) + X(7th) +X(4th) + 1
>
> So who wants to make a simple (not for me!) binary program that
> allows one
> to input a file and outputs it's signature?
>
> John :-#)#
>
> At 09:11 AM 06/05/2002 -0400, Kev wrote:
>
>
>
> >Anyone written any test scripts for these or at the very least have some
> >checksum signatures?
> >
> >Thanks,
> >Kev
>
>
Received on Mon May 06 16:24:05 2002