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?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's someone in Germany who fits indicators to 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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Joined: Tue Dec 14, 2010 9:04 am
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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?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's someone in Germany who fits indicators to 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
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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?
If at first you don't succeed, don't take up skydiving!
If you think your job is pointless, remember, there's someone in Germany who fits indicators to BMWs.

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