From: Spiro Trikaliotis (ml-cbmhackers_at_trikaliotis.net)
Date: 2005-02-18 10:03:58
Hello Ruud,
* On Fri, Feb 18, 2005 at 09:38:22AM +0100 Baltissen, GJPAA (Ruud) wrote:
> I'm trying to find out how the 1541 can format a single track. I know
> it is possible. The routine to format a track starts at $FB0C. The
> sectors are written and then all read again to check if the writing
> was OK. This proces of reading the sectors ends at $FD8B. But at that
> point the routine immediatly starts to check if all tracks have been
> formatted. Where did I lose track???
You did not loose track. The problem is that it works other than you
expect. :-)
I know of two different types how this can be accomplished:
1. Write your own formatting routine. An example of this can be found in
the book I once send you a copy: K. Schramm, "Die Floppy 1541".
Unforuntately, no source is available.
2. Copy the format routine from ROM into RAM, patch it to your needs,
and execute it there with jobcode $E0.
HTH,
Spiro.
--
Spiro R. Trikaliotis
http://www.trikaliotis.net/
http://cbm4win.sf.net/
Message was sent through the cbm-hackers mailing list
Archive generated by hypermail pre-2.1.8.