[Coco] Swapping hard drives with SuperIDE

[Allen Huffman]

On May 5, 2008, at 9:03 PM, Diego Barizo wrote:

> My original plan was to use 2 had drives (actually CF cards), 1 for  
> HDB-DOS, the other for NitrOS-9, and swap them as needed.


More on this ... wish I had my old "the world of '68 micros" articles  
on RGB-DOS.  I covered this for SyQuest EZ135 (128MB) removeable hard  
drives.

My ROM was set to go to the very last "drive" sector offset, so no  
matter what platter I put in, I always saw that drive (or maybe the  
last 4).  I could then run a DOS program that would poke the offset so  
I could see more drives, and even bank between them (since you could  
only do 256 virtual drives, and more than that would fit on 128MB).   
So, I would have an OS-9 platter that had just boot disk at the end,  
and an RS-DOS platter, that had the offset program at the end.

I should find all this -- I'm not sure where it is other than my  
SyQuest platters.  Somewhere I may be able to dig up the articles,  
though, which explain how I did it.

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