ED Floppy Discs

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NormanDunbar
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ED Floppy Discs

Postby NormanDunbar » Tue Oct 30, 2018 2:46 pm

I'm looking through some old C68 code of mine, and I've found what I think is a bug in my old qformat utility which does a quick format on DD/HD and ED floppies.

Does anyone still have working ED drives and a formatted floppy? If so, can you tell me what the disc ID is at the start of sector zero please?

I have this:

'QL5A' for DD, 'QL5B' for HD and I seem also to have 'QL5B' for ED floppies - and I'm not sure that's actually true, but I might be mistaken as I no longer have drives or floppies to check.

Thanks.


Cheers,
Norm.


Why do they put lightning conductors on churches?
How come Tarzan never grew a beard?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's a man in Germany who fits indicators on BMWs.
FrancoisLanciault
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Re: ED Floppy Discs

Postby FrancoisLanciault » Tue Oct 30, 2018 4:35 pm

I have a ED drive with some floppy. I can check tonight.

However, I will need to search online as I don't remember how to do direct sector access on the ED floppy. So if someone knows the correct sequence of command/utility to use let me know.

François

NormanDunbar wrote:I'm looking through some old C68 code of mine, and I've found what I think is a bug in my old qformat utility which does a quick format on DD/HD and ED floppies.

Does anyone still have working ED drives and a formatted floppy? If so, can you tell me what the disc ID is at the start of sector zero please?

I have this:

'QL5A' for DD, 'QL5B' for HD and I seem also to have 'QL5B' for ED floppies - and I'm not sure that's actually true, but I might be mistaken as I no longer have drives or floppies to check.

Thanks.


Cheers,
Norm.


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NormanDunbar
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Posts: 544
Joined: Tue Dec 14, 2010 9:04 am
Location: Leeds, West Yorkshire, UK
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Re: ED Floppy Discs

Postby NormanDunbar » Tue Oct 30, 2018 10:28 pm

Evening Francois

This will definitely help, https://superbasic-manual.readthedocs.i ... tor-access

Cheers,
Norm.


Why do they put lightning conductors on churches?
How come Tarzan never grew a beard?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's a man in Germany who fits indicators on BMWs.
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janbredenbeek
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Re: ED Floppy Discs

Postby janbredenbeek » Tue Oct 30, 2018 11:31 pm

It's QL5B and the sector size is 2048 bytes, so for direct access you should open 'flpx_*D4e'.

Jan.


FrancoisLanciault
ROM Dongle
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Joined: Mon Aug 08, 2011 11:08 pm

Re: ED Floppy Discs

Postby FrancoisLanciault » Wed Oct 31, 2018 1:28 am

janbredenbeek wrote:It's QL5B and the sector size is 2048 bytes, so for direct access you should open 'flpx_*D4e'.

Jan.


I confirm. Freshly formatted ED disk. Sector read with "flp2_*D4e"

Francois


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NormanDunbar
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Re: ED Floppy Discs

Postby NormanDunbar » Wed Oct 31, 2018 1:38 pm

Thanks everyone, it seems my ancient code was correct after all!

Much obliged.


Cheers,
Norm.


Why do they put lightning conductors on churches?
How come Tarzan never grew a beard?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's a man in Germany who fits indicators on BMWs.

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