From: Craig Taylor (ctalkobt_at_gmail.com)
Date: 2008-04-14 09:14:43
Just a random thought - use the 1571 u0>h1, u0>h0 commands to indicate which
portion of the 512 block (eg : 0 = 0-255, 1 = 256-511) ... the organization
won't strictly be from a "head" perspective but since we're dealing with
hard-drives I don't think it should matter as much - just as long as the
capability is there.
As a further extension, u0>m1 could add an additional bam track for the
second "side" that conditionally gets considered ....
On Mon, Apr 14, 2008 at 1:21 AM, <ruud.baltissen@apg.nl> wrote:
> Hallo Jim,
>
>
> > I would prefer 256 byte blocks,
>
> OK.
>
>
> > unless you're coding a partition format
> > that only allows file access (i.e., no block level access)
>
> The whole thing is based on the 1541 so block level access should be
> possible.
>
>
> > Note that fastloaders sometimes choke on > 256 byte blocks.
> > Of course, fastloaders may not work in general.
>
> I already noticed that the fastloaders I encountered either rely on 1541
> routines, like the Power Cartridge, and those have moved, changed or
> even disappeared, or try to access the data directly by manipulating one
> or both 6522's, like the FC3. And these have no use anymore in my
> system.
> The only fastloaders that works WO problems so far is JiffyDOS.
>
>
> --
> ___
> / __|__
> / / |_/ Groetjes, Ruud
> \ \__|_\
> \___| URL: Ruud.C64.org
>
>
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