Date   : Wed, 25 Oct 2006 14:00:57
From   : John Kortink <kortink@...>
Subject: Re: ADFS sector checksums

I wrote :

>Acorn probably intended to start 0, but some fan of
>obscure programming realised that it's the same as
>starting 255 since [...]

The proof of Acorn really intending to start 0 not
255 is to be found in the RISC OS PRM's, page 2-215.
The algorithm is described there in 32-bit terms.
And it starts 0, not 255 !


John Kortink

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