Re: [hatari-devel] MMU emulation (was: MiNT on Hatari)

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On maanantai 19 joulukuu 2011, laurent.sallafranque@xxxxxxx wrote:
> Yes, the 68030 MMU works with the new core (that's one of the best
> improvement of the new core). It was already present with the 1.5
> version.
> I changed the comment for raimbow2 multimedia before the 1.5 release to
> indicate that it works with the new CPU whereas it doesn't work with the
> old CPU because of the MMU. I've tested some other programs that runs
> now with 68030 MMU.

Would it make sense to add few of them also to the compatibility list?


> We must be careful if we communicate on this :
> 
> the MMU option in the GUI is only here for the 68040 CPU. This MMU
> doesn't work (there's still the TRY/CATCH to convert to C).
> 
> The 68030 MMU is activated by default with the 68030 CPU choice.
> It seems to work well.
> 
> I haven't tried X-tasie again. I'll do it this week.

If it works fine, you could remove the comment about missing MMU
emulation from the compatibility list Falcon section.


> If I'm right, another big signifiant news with the new core is the cache
> management for the 68020/030/040/060 CPUs.

And mention this also in release notes and manual.


	- Eero

> I like this new core, it has a lot of potential.
> I'd like to have the whole Hatari project migrated under it.
> 
> Best regards,
> 
> Laurent
> 
> 
> 
> ----- Mail Original -----
> De: "Eero Tamminen" <oak@xxxxxxxxxxxxxx>
> À: hatari-devel@xxxxxxxxxxxxxxxxxxx
> Envoyé: Dimanche 18 Décembre 2011 23h33:36 GMT +01:00 Amsterdam / Berlin
> / Berne / Rome / Stockholm / Vienne Objet: Re: [hatari-devel] MMU
> emulation (was: MiNT on Hatari)
> 
> Hi,
> 
> On tiistai 13 joulukuu 2011, Laurent Sallafranque wrote:
> > It would be interresting to test again on Falcon with the new CPU as
> > now, MMU is activated (test with prefetch activated, cycles exact
> > disabled and later enebled (just to see if this works in all case)).
> > 
> > You must disable the MMU in the GUI (it's only for the 68040 cpu, the
> > 68030 MMU is enabled by default with the 68030 cpu).
> 
> Is enabled for 030?  Does it work too, e.g. for Rainbow II & X-tasie
> which are marked as non-working due to lack of MMU in compatibility list?
> 
> > 68040 MMU doesn't work at all for now.
> 
> MMU working for 030 with the winUAE core would be significant news,
> (to be added to the the release notes & manual). :-)
> 
> 
> 	- Eero
> 
> > Regards
> > 
> > Laurent
> > 
> > Le 12/12/2011 22:41, Eero Tamminen a écrit :
> > > Hi,
> > > 
> > > On lauantai 10 joulukuu 2011, Matthias Arndt wrote:
> > >> I just wanted to post that Hatari seems to run atleast the 68000
> > >> version of MiNT. I have not tried with a recent build yet but an
> > >> older 1.17 alpha release of FreeMiNT and its XaAES (I got it from a
> > >> packet from Marcer's GameDVD), do run with Hatari.
> > >> 
> > >> I had to use (ofcourse) a harddisk image, other stteing were STE 4MB
> > >> and TOS 1.62de
> > > 
> > > I guess compatibility list could mention that also MiNT 68000 version
> > > works under Hatari ST emulation.
> > > 
> > >> Without NVDI it is a bit slooow but with NVDI4 running it could
> > >> actually be usable.
> > >> 
> > >> Maybe we can make MiNT work aswell in 020 or higher mode?
> > > 
> > > Hatari compatibility list TT/Falcon utilities section has listed MiNT
> > > as
> > > 
> > > working under Hatari already since v1.2:
> > >    "Needs to be installed/booted from an ACSI or IDE HD image and
> > >    memory
> > >    
> > >     protection needs to be disabled (Hatari UAE core doesn't emulate
> > >     MMU)"
> > > 
> > > Is there some problem with newer MiNT versions?
> > > 
> > > 	- Eero