Nibble

This is the best place to discuss about the various Oric operating systems like Sedoric, Randos, FT-Dos, and others.
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Symoon
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Nibble

Post by Symoon » Sun Mar 24, 2013 11:59 pm

Anyone around using Nibble, the disk editor (under Sedoric) ?
I've tried to edit a track but never managed to save my work.

No problem with sectors, there's a save option (CTRL W), but in track mode (CTRL P), the save option disappears. There's instead a "copy" option (CTRL C) but when selected, the values of the read track seem to change, every sectors contents are set to zero... It is then possible to save, but of course it deletes what's on the disk.

I don't get it :shock: , if anyone can help!

PS: I need to work in track mode since the bytes I want to change are in the track format definition bytes, which don't appear in sector mode.

PS2: posting there, did you notice there is no "utilities" topic on Defence Force ? ;)

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Re: Nibble

Post by Symoon » Mon Mar 25, 2013 5:53 pm

Ok, replying to myself: the FDC only allows formatting in track mode, hence the zeroes in the sectors content. So 1st set your disk structure and special bytes between tracks, then format, then work in sectors mode. No very handy but should do the work.

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Re: Nibble

Post by Chema » Mon Mar 25, 2013 9:41 pm

Chema wonders what Symoon is up to :)

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Re: Nibble

Post by Symoon » Tue Mar 26, 2013 7:13 am

Nothing new Chema, sorry!
I'm just trying to make a (real) disk copy of XL-Dos for an orician whose original disk is faulty. But this DOS is heavily protected, with a modified byte in the bytes describing a sector on the disk!
XL-Dos is an early version of what would later become Sedoric.

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Re: Nibble

Post by Dbug » Tue Mar 26, 2013 8:16 pm

Symoon wrote:PS2: posting there, did you notice there is no "utilities" topic on Defence Force ? ;)
The issue is more that there's an arbitrary split between Oric and non Oric software, which works for a number of things but not all.
I could definitely merge "Oric" and "Non Oric" software categories, and rename "Cross Development Tools" as "Development Tools" which would include native Oric assemblers and monitors, in which case I would also rename "Floppy and Tape converters" as "Floppy and Tape tools" where "Nibble" would nicely fit with Tap2Dsk and other similar stuff.

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Re: Nibble

Post by Godzil » Fri Apr 12, 2013 1:47 am

Symoon wrote:Nothing new Chema, sorry!
I'm just trying to make a (real) disk copy of XL-Dos for an orician whose original disk is faulty. But this DOS is heavily protected, with a modified byte in the bytes describing a sector on the disk!
XL-Dos is an early version of what would later become Sedoric.
I think I have image of XL-DOS floppy, if you want I can check it

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Re: Nibble

Post by Symoon » Sat Apr 13, 2013 12:34 am

Godzil wrote:I think I have image of XL-DOS floppy, if you want I can check it
If it was made from an original disk you had, yes, it's very interesting!
If you found it on the Internet, then it's very likely the one and only image we ever had, re-made by Fabrice and André, from a badly cracked version ;)

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Re: Nibble

Post by Godzil » Sun Apr 14, 2013 12:02 pm

It may be this version "XL-DOS © Micro Programmes 5"
"Version 0.6 par F.Broche & D.Sebbag"
"Deplombé par S.L et JM.L le 21-02-85"

donc c'est bien une version déplombé :( Désolé pour la fausse joie..

Edit: (sorry I post partly in french :D)
The original floppy is a 3 inch one? I wonder if the IMD tool I have on PC is able to copy this floppy with it's copy protection.. (the only problem of this tool is I need a PC with a floppy connector and a not so bad FDC..

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Re: Nibble

Post by Symoon » Sun Apr 14, 2013 1:45 pm

Yes, that's this one. If you want to be sure it's working, try:
!FORMAT 0 (or !FORMAT 1 according to the floppy drive you'd want to use).
If it keeps asking you the system disk, then it's badly cracked version.

The original disk was probably a 3" one, but no-one I know ever saw one.
Single-sided, 44 tracks, 18 sectors.

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