(Please cc me too... I'm not on the list...)
Hi Adriano,
Now that's useful info... Together we have a near complete memory :)
> > > The 'Extended' format uses sectors elsewhere on the disk, as does the
> > > BERT/HPN format.
> > > What they do is: in sector 0 of the harddisk there are 2 * 32 bytes of
> > info;
>
> Do you remember if the partition info has the correct partition
> type byte (extended partition has type 5, indicating that this entry
> points
> to another partition info sector, with data about the other partitions
> on
> disk)?
Yes.
(You can also see the first (or first two, or so) extended partitions on a
PC - because it has the right value.)
> > > the first holding data about partition 1, the second being a pointer
to
> > > another sector. In this sector there are 2 * 32 bytes of info; the
first
> > > holding data about partition 2, the second being a pointer to another
> > > sector. In this sector there are 2 * 32 ...(reiterate until you get to
> > > partition 32. If I remember correctly that 32 partitions was the
maximum -
> > > anyway, it's an arbitrary limit.)
> > > (I thought that this format was PC compatible.
>
> No, it's not. But it's compatible with MegaSCSI format (assuming
> that the partition type byte is set accordingly).
Phew. That's at least one more compatible format :)
> > > So what's the difference between 'Extended' and 'BERT/HPN'? Well, I
wanted
> > > the Novaxis 'Extended' format to be compatible with the Bert, but I
> > screwed
> > > up somewhere in NFDISK 1.0 (and those routines also got into the
Novaxis
> > > interface) because I did the pointers to other sectors as absolute
sector
> > > numbers, while the BERT had it as a relative offset from the current
> > sector.
>
> Yes! That's it! Now I really understand what NOVAXTAB.BAS does! :)
Exactly :)
Strange that there wasn't any documentation though... I did write an English
text, didn't I?
Hmmm..... Do you have any idea on which Quasar disk NOVAXTAB.BAS was, or can
you give me a date, if it's in the BAS file? Then I can look for it
better... (Yeah yeah, stupid question for something I wrote myself, I know
;-}
> > > - what more do you need to know?
>
> Do you remember how can I check the partition table type (MAK 3.0,
> BERT, Extended, Old PC, Old MSX, etc)? Checking the number of entries in
> the
> partition table?
That I can probably find out from the NFDISK sources. (If you don't mind
translating back from assembler to human logic, I might leave that
translation up to you - and you'll have the asm routine... There should be a
single piece of code in there which reads partition data from any of those
formats into an x*y memory area... It has been incorporated from there into
the Novaxis ROM too, so...)
> UZIX is an UNIX-like operating system for MSX. Take a look at
> http://uzix.msx.org.
Found it. And it looks coooool....
> > > (Gert: zie je 1 dec!)
>
> Po^, sacanagem... Nao entendi nada do que voce escreveu... :)))))
Doesn't matter much, it's not useful info. (Unless you want to come bowling
with some ex-MSX Club Gouda folks who haven't seen each other in years. But
I think there should be a better reason to come to Holland than that ;)
(And no, I don't know Portugese, so please don't give me anything more
complicated than above sentence, because I won't be able to guess my way
around it ;-)
I'll be back,
--Ro.
--
For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
