Re: [MiNT] [Mint-cvs] [FreeMiNT CVS] freemint/sys

[Alan Hourihane <alanh@fairlite.co.uk>]

On 19/02/15 21:02, Eero Tamminen wrote:
> Hi,
>
> On keskiviikko 18 helmikuu 2015, Jo Even Skarstein wrote:
>> On ti., 2015-02-17 at 22:39 +0000, Helmut Karlowski wrote:
>>>> What's the problem with hatari and FAT XFS ? Can we fix hatari ?
>>> That would be even better. I don't know anymore, I think it has
>>> something to do with XHDI.
>> The problem is that Hatari's emulated GEMDOS drives hooks into TOS. So
>> when MiNT does not use TOS FS, it can't access these "drives" (native
>> folders).
>>
>> It's the same problem as with ARAnyM. But in ARAnyM it has been solved
>> with proper filesystem drivers (xfs and MetaDOS drivers). IMO it should
>> be solved like this in Hatari too. I think it's wrong to keep the
>> obsolete TOSFS in MiNT just to keep an emulator happy.
> There were couple of mails about this few years ago on hatari-devel, but
> TOS hooks are needed for all other programs and adding specific file system
> functionality just for MiNT hasn't been priority for anybody yet.
>
> Is the NatFeats file system API required for this even documented?
>
>
> Btw. This is mainly a loss for MiNT developers.  There are features in
> Hatari that are useful getting most out of one's code: accurate emulation
> with low level debugging/tracing support, profiling with callgraphs etc.
> http://hg.tuxfamily.org/mercurialroot/hatari/hatari/raw-
> file/tip/doc/manual.html#Profiling
> http://hg.tuxfamily.org/mercurialroot/hatari/hatari/raw-
> file/tip/doc/images/callgraph.png
>

It's not a loss. The code still exists for developers to turn on.

Just by default it's off as OLDTOSFS is broken on real machines and
crashes it, so I suspect hatari may not be emulating correctly here
to simulate the crash.

This allows users to enjoy FreeMiNT on real hardware again :-)

Alan.