ED Floppy Discs

[NormanDunbar]

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.

[FrancoisLanciault]

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

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.

[NormanDunbar]

Evening Francois

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

Cheers,
Norm.

[janbredenbeek]

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

Jan.

[FrancoisLanciault]

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

[NormanDunbar]

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

Much obliged.


Cheers,
Norm.