'Tools to work on g64 et al'
Author:Lord Crass (guest: search)
Date: Thu, Apr 14th, 2011 @ 19:56 ( . )

Yes, I just disassembled the drive code to see what it was doing and how that data was used on the C64 side.

As far as I know, Vice doesn't use the speed zone data.

I don't think nibwrite does either. Based on the tight timing loops when writing out a track, I'm not sure if there's enough cycles available to check the speed zone and adjust the density before writing the next byte. There might be a missed byte if density needs to change on the fly. Pete would know more about this.

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--* Tools to work on g64 et al
4/14/2011 @ 20:25--Pete Rittwage

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