Disk format L
Mr John FO Evans
Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9) This
to be used with the Simtec USB MASSFS software to read/write ADFS Formatted
CF cards.
NB I believe that the Simtec Software would work in this way on a RISC PC
under Select upwards.
John
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Steve Potts
Mr John FO Evans <mi...@orpheusmail.co.uk> wrote:
> Hi Everybody
>
> Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9)
> This to be used with the Simtec USB MASSFS software to read/write ADFS
> Formatted CF cards.
Why? Is that not an old deprecated format???
[snip]
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StevePotts at blastzone DOT demon STOP co DOT uk (www.blastzone.demon.co.uk/)
Written on RISC OS.
http://www.riscos.com/
David Holden
On 11-Dec-2009, Steve Potts <nos...@all.invaliid> wrote:
> In message <na.4e0cb750c...@orpheusmail.co.uk>
> Mr John FO Evans <mi...@orpheusmail.co.uk> wrote:
>
> > Hi Everybody
> >
> > Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9)
> > This to be used with the Simtec USB MASSFS software to read/write ADFS
> > Formatted CF cards.
>
> Why? Is that not an old deprecated format???
Yes, but it's the /only/ format understood by both RISC OS and ADFS-equipted
BBC and Master computers so it's ideal for data interchange.
--
David Holden - APDL - <http://www.apdl.co.uk>
Steve Potts
"David Holden" <Spa...@apdl.co.uk> wrote:
I see. That also holds for the Acorn Electron Plus 3 discs then (I can read
these in my Risc PC, although they're single sided and thus half capacity
of L format).
I didn't realise that legacy transfer was the point of the OP. Doh!
Cheers
Steve.
druck
> Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9) This
> to be used with the Simtec USB MASSFS software to read/write ADFS Formatted
> CF cards.
Given the way Filecore was written, no. Once taken out, it wouldn't be
practical to put it back in.
> NB I believe that the Simtec Software would work in this way on a RISC PC
> under Select upwards.
RISC OS 4.0x and the first select issues still had support albeit highly
deprecated and untested, but none of those will work on an A9. You'd
need a Risc PC and Simtec card. Alternatively it might work on the Iyonix.
---druck
Theo Markettos
> Mr John FO Evans wrote:
> > Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9)
> > This to be used with the Simtec USB MASSFS software to read/write ADFS
> > Formatted CF cards.
>
> Given the way Filecore was written, no. Once taken out, it wouldn't be
> practical to put it back in.
There's FCFS. It can read Filecore images - it just needs 256 bytes of extra
data appended (I do this by imaging a floppy with FCFS, snipping off the
extra 256 bytes and adding them to another disc image). But it's probably
not 32 bit.
Alternatively, it might be feasible to take the ROOL Filecore module of
suitable vintage, strip out the bits that relate to floppies and IDE, and
turn it into something a bit like a image filing system. Obviously call it
something other than Filecore.
It might be feasible to softload an old Filecore onto a new OS (if you do
the gymnastics to load it off a Filecore medium) but that won't help with
the A9 as none will be 32 bit. Though you might have some luck with the
ROOL Filecore.
It's probably a good idea to try this on a machine where you don't care
about the contents of the hard drive, given the likelihood of corruption if
Filecore goes wrong.
Theo
druck
> There's FCFS. It can read Filecore images - it just needs 256 bytes of extra
> data appended (I do this by imaging a floppy with FCFS, snipping off the
> extra 256 bytes and adding them to another disc image). But it's probably
> not 32 bit.
That and I believe it uses Filecore itself, so you'd still need a
filecore which supported D format.
---druck
Jonathan Graham Harston
> > Mr John FO Evans wrote:
> > > Would it be possible to add ADFS Disk format L to RISC OS 6 (on the A9)
>
extra
map, disc not understood."
--
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Jet Set Willy Resources - http://mdfs.net/Software/JSW
Mr John FO Evans
<nos...@all.invaliid> wrote:
> I see. That also holds for the Acorn Electron Plus 3 discs then (I can
> read these in my Risc PC, although they're single sided and thus half
capacity of L format).
>
> I didn't realise that legacy transfer was the point of the OP. Doh!
There seems to be quite a significant interest in legacy computing these
days which is why I am dusting off some older software to put into the free
domain.
However many of the utilities you need to make this process easier are PC
based - including the ability to read/write in L format both to floppies and
also to IDE devices such as Compact Flash via USB.
I have been trying to base my applications on an A9 - perhaps later on a
Beagle Board - and for that L access via USB is virtually essential.
Alan Williams
> a Beagle Board - and for that L access via USB is virtually essential.
You are more than likely going to stumble into that age old bug bear
that not a single external removable media drive in PC or Apple land
has ever understood sector addressing starting at zero. Well ok I
might be exaggerating a bit, SyQuest and Zip both worked on RISC OS,
but LS120 never did and certainly USB floppy drives do not.
Alan
David Holden
On 21-Dec-2009, Alan Williams <a...@genesis.net.au> wrote:
> You are more than likely going to stumble into that age old bug bear
> that not a single external removable media drive in PC or Apple land
> has ever understood sector addressing starting at zero. Well ok I
> might be exaggerating a bit, SyQuest and Zip both worked on RISC OS,
> but LS120 never did and certainly USB floppy drives do not.
LS120 most certainly did. I've got one here (although it's not been used for
years).