Re: Commodore 15 Second disk format routine disassembled

From: groepaz <groepaz_at_gmx.net>
Date: Fri, 19 Jun 2026 14:56:23 +0200
Message-ID: <3442942.VqM8IeB0Os_at_zweitrakete>
Am Freitag, 19. Juni 2026, 14:45:10 Mitteleuropäische Sommerzeit schrieb 
gsteemso:

> ...maybe, if you could get the controller to squirt the bits out fast enough
> (you can't), or if you could read them back fast enough (you really can't),

You really can. It works exactly the same no matter the track.

> or if it didn't exceed the media's design limits on flux transitions per
> unit length (it does).

This is really the only problem - however its not THAT bad really.
 
> Working in simulation means nothing to actual physics.

After having developed stuff for the catweasel (which involved hundreds of 
different physical formats) i dare to say i know a little bit about the 
physics involved :)

(There have been commercial copy protections doing this, even on tracks > 35)


-- 

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[Did you] Ever read a resume that lists "Lotus" and "WordPerfect" as job 
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skill only for Buddhist monks. 
<Michael Swaine>
Received on 2026-06-19 14:01:07

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