[Coco] HDB-DOS Question

Gene Heskett gheskett at shentel.net
Thu May 14 03:41:44 EDT 2020

On Thursday 14 May 2020 00:22:30 tonym wrote:

> Anyone know how to pull the "offset" you entered when creating a
> drive?
> Years ago, I setup a Glenside IDE with a 512MB CF card, and generated
> the HDBDOS ROM file, which I flashed to my SDC. Can't find the
> paperwork where I wrote the information down, but I think I still have
> the .DSK image I used when generating.
> Is there a peek() I can do while under the HDB ROM that will give me
> the offset I used?
> Danke!!
> Tony

That offset, generally, is the first 3 bytes of the drive, (DD.SIZ in the 
defs) plus 1. Everything beyond that point that is still reachable with 
that 24 bit address limit, is free for rsdos vdisk use.

Cheers, Gene Heskett
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Genes Web page <http://geneslinuxbox.net:6309/gene>

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