🚀 go-pugleaf

In article <81.filbo@gorn.santa-cruz.ca.us> filbo@gorn.santa-cruz.ca.us (Bela Lubkin) writes:
>
>Transfer rate is not an insignificant problem either: since Amiga-format
>floppies don't use sectors, an entire track must always be read.

I thought you have to scan thru half of the track on the average in order
to locate one sector (even if you have sectors).

>At 360
>RPM, that's 1/6 second.  (Or is it 300 RPM and 1/5 sec?)  I suspect that
>trackdisk.device also waits for start-of-track before beginning to read,
>adding another 1/12 sec average latency.

Thanks, I didn't know that.

>[...]
>Proposal: trackdisk.device should cache a user-settable number of tracks
>for each drive.  The cached tracks should be in data format (i.e., after
>being run through the blitter) and should optionally be storable in fast
>memory (at the expense of using the 68000 to move them there).
>
Good idea!  Thanks for your response!

--Tak
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