Reading Commodore 900 disks in the 8250 (LP)

From: Michal Pleban <lists_at_michau.name>
Date: Wed, 10 Jan 2024 11:31:08 +0100
Message-ID: <7d7f0cd8-d80b-0499-172d-43de1699d3e7_at_michau.name>
Hello!

As I am currently working on emulating the Commodore 900, an obvious 
nice to have feature is to be able to read the Commodore 900 
(installation) diskettes. The 8250 is an obvious candidate, but the 
problem is the C900 disks use 512-byte sectors. Can the 8250 be hacked 
somehow to read such sectors? I find very little information on the 
internal workings of the 8250 online; even on the 1541, which has been 
hacked out to the last bit, I have never seen non-512 byte sectors being 
used. So, is it feasible in any way?

Regards,
Michau.

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