[Info-vax] Hobbyist licences for VAX

[Bob Eager]

On Thu, 14 Apr 2022 01:07:56 -0700, gah4 wrote:

> On Wednesday, April 13, 2022 at 11:24:38 PM UTC-7, Bob Eager wrote:
> 
> (snip, I wrote)
> 
>> > There is an IBM standard for virtual CKD disks used by the P/370 and
>> > successor systems, and is almost the same as that used by Hercules.
> 
>> Sorry, 3340. I realised two minutes later!
> 
>> > I thought other emulators also used that one.
> 
>> Thanks, I'll take a look. I have no particular wish to invent something
>> new. My point was that a raw disk image won't work.
> 
> And, in case you were wondering, there is a difference in the IBM and
> Hercules form when using the track overflow feature, which as far as I
> know only applies to the 2314 and 3330.   That allows a block to start
> on one track and continue onto the next track.

Hmm. Might have to do my own. The track overflow feature is something I 
*have* to implement.



-- 
My posts are my copyright and if @diy_forums or Home Owners' Hub 
wish to copy them they can pay me £1 a message.
Use the BIG mirror service in the UK: http://www.mirrorservice.org
*lightning surge protection* - a w_tom conductor