Re: [hatari-devel] Hatari snapshots

["Roger Burrows" <rfburrows@xxxxxxxxx>]

Hi Thomas,
On 21 Nov 2014 at 21:23, Thomas Huth wrote:

> Am Fri, 21 Nov 2014 13:06:32 -0500
> schrieb "Roger Burrows" <rfburrows@xxxxxxxxx>:
> 
> > On 21 Nov 2014 at 18:54, Thomas Huth wrote:
> > 
> > > Am Fri, 21 Nov 2014 12:03:05 -0500
> > > schrieb "Roger Burrows" <rfburrows@xxxxxxxxx>:
> > > > > 
> > > > I started off needing to fix an EmuTOS bug which shows up when
> > > > running with Hatari 1.8.0.  However EmuTOS under 1.8.0 does not
> > > > recognise ACSI disks due to (I believe) a bug in ACSI handling
> > > > which (I suspect) is fixed in the current repository (the bug is
> > > > related to accessing both 8604 & 8606 with the same
> > > > instruction).  If the fix is indeed in the current repository,
> > > > then I don't need to post a bug report.
> > > 
> > > I indeed fixed a related problem some weeks ago:
> > > 
> > > http://hg.tuxfamily.org/mercurialroot/hatari/hatari/log?rev=d910217ea576
> > > 
> > > But that only affected buggy ACSI drivers. So if EmuTOS did not work
> > > with 1.8.0, but now works again, it certainly does something
> > > wrong ;-)
> > > 
> > EmuTOS carefully follows the rules in the "Atari ACSI/DMA Integration
> > Guide": on p.14, it explains what the driver needs to do to avoid the
> > "DMA CHIP ANOMALY".  I suspect that the changes in 1.8.0 broke this,
> > and the subsequent change fixed it again.  But until I can get a
> > current version of Hatari to work, I have no way of testing this ...
> 
> I gave it a quick try and it seems like EmuTOS still does not work with
> hg tip version of Hatari yet. Looks like it is running into
> timeout_gpip() or so ... not sure yet, why this happens, though.
> 
OK, I'll take a look at this using 1.8.0 and see if I can figure out what's 
going on.

Roger