Re: Kernal 1541

From: Marko Mäkelä (
Date: 2001-07-30 13:34:38

On Mon, 30 Jul 2001, Spiro Trikaliotis wrote:

> I'll have a look at it, but I think I remember the checksum is build over
> *both* ROMs, isn't it?

Nope.  The $c000-$dfff ROM (325302-01; the same in the 1540 and the 1541)
sums up to $c0, while the $e000-$ffff ROM sums up to $e0.

A comparison between the 325302-01 and the lower part of the 251968-03
(1541-II firmware) reveals quite a few changes, including the introduction
of a copyright message.  I just had a look at the differences, but could
not find any obvious place for the checksum.


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