[sebhc] h17 and h8d disk images

Dave Dunfield dave04a at dunfield.com
Wed Sep 1 04:20:43 CDT 2004

>The .h17 format preceded the .h8d - these images are "verbose" hex dumps
>of various disks using Dave Wallace's algorithm. This is also the format
>that Eric Rothfus uses with his SVD device. 
>The .h8d format was developed by Dave Dunfield for his H8 emulator;
>Stephen Parker transformed many .h17 disks into .h8d images by stripping
>the track and sector info (and converting to binary?). At least for the
>HUG material, the same disks should be available in both formats.

Hi Guys,

I haven't checked into the archive in a long time - been tied up with
other things... must do so, sounds like good things are happening.

If it would be useful, I would be happy to write up a little utility
to convert .H17 to and from .H8D (by removing or adding the track/sector
informaion) - just point me at a good description of the .H17 format.
Then we don't have to maintain two copies of everything.

Also, I've got it in my mind to modify the emulator so that it can boot
CP/M ... Presumably I need to add the "RAM at 0" option ... anything else
needed?  I don't have any technical info on this - can someone give me a

dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
com             Vintage computing equipment collector.

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