Re: Disk II Phase Question

["Jplcsch" <jplcsch@wanadoo.fr>]

"Matthew Russotto" <russotto@grace.speakeasy.net> wrote in message
Udydnb8uduincHvcRVn-1Q@speakeasy.net">news:Udydnb8uduincHvcRVn-1Q@speakeasy.net...
> In article <41e6db62$0$6408$8fcfb975@news.wanadoo.fr>,
> Jplcsch <jplcsch@wanadoo.fr> wrote:
> >
> >One thing it's absolutly impossible to do, is to write like a spirale
from
> >track 0 (or any other) look the connection of the phase one and you'll
> >understand.
>
> If it's impossible, how was it done?  Or is it possible to read but
> not write on standard hardware?
>
>

A real spiral was never done on Apple II. By spirale I think to a long track
from outside to inside.
Spiraling in an other schema of protection : the writing is on each half or
quarter track but in a small siwe so it's as a spirale
if you track was on a plan you look that, draw same on a circle and you'll
understand

00.0
::::::::#############:::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
00.5
::::::::::::::::::::::::::::::::::::::::::::::#############:::::::::::::::::
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
01.0
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
:::::::#############::::::::::::::::::::::::::::::::::::::::::::::::::::::::
01.5
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
::::::::::::::::::::::::::::::::::::::::::::::#############:::::::::::::::::
:

::::::::::::::::::  anything
#######  good data