[Coco] Ken-Ton Update
Robert Gault
robert.gault at worldnet.att.net
Fri Dec 19 20:15:09 EST 2003
Neil Morrison wrote:
> Does OS-9 have any support for 512 byte sectors or is it hard coded
> to 256 bytes?
>
> Neil
>
> ----- Original Message -----
> From: "John E. Malmberg" <wb8tyw at qsl.net>
>
> ...
>
>>Most of the drives used 512 byte sectors, some did not and used
>
> other
>
>>sizes. If the sector size is wrong, then you will not be able to
>
> read
>
>>or write to the drive until it is reformatted.
>
> ...
>
>
Even stock OS-9 can support 512 byte sectors but the Tandy version was
not configured for it. It should be much easier with the current
NitrOS-9 version to accommodate 512 byte sectors.
The main problem with 512 byte sectors is for RGBDOS/HDBDOS usage.
RGBDOS does not understand 512 byte sectors. Cloud-9 has enhanced HDBDOS
so that 512 byte sectors won't break Disk Basic. I think the second 256
bytes in the data sectors are just ignored.
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