Re: CFFA and MicroDrive partitions

[mojoehand <mojoehand@gmail.com>]

On May 28, 9:31 am, "Bill Garber" <willy4...@garberstreet.com> wrote:
> "schmidtd" <schmi...@my-deja.com> wrote in message4206feb3-2577-44c2-88b4-f84d575b45ce@b21g2000vbh.googlegroups.com">news:4206feb3-2577-44c2-88b4-f84d575b45ce@b21g2000vbh.googlegroups.com...
>
> On May 27, 5:06 pm, mojoehand <mojoeh...@gmail.com> wrote:
>
> >> While using CiderPress to copy a volume made on a CFFA to a CF card
> >> destined for a MicroDrive, I got an error. The CFFA volume was 65536
> >> blocks and the MicroDrive volume is 65535 blocks. One block smaller,
> >> so I couldn't copy the volume.
>
> >> Is there a reason for this? Which is the correct size?
>
> > The max volume size for ProDOS is 0xffff blocks, so 65535 is correct.
>
> May I suggest that ProDOS volume size 'is' 65536, because zero is a block.
> So, therefore, it would be $0000-$FFFF or $10000 or 65536. The partition
> Editor in the Microdrive warns you when you get to 65536 or $10000 by the
> "!!" after where it shows you the size you are making that partition. It's
> not an oversize warning, it is a MAX size warning. I make them that size
> all the time, and I never have a problem writing a CFFA partition over to
> a Microdrive partition.
>
> Bill

I'm just following the instructions in the Microdrive manual for
assigning the maximum volume size. This gives me a partition that is
65535 blocks. Whether ProDOS is counting from zero or one for blocks,
I don't know.