Re: [hatari-devel] UAE 68030 MMU + prefetch + instruction and data cache emulation

[Laurent Sallafranque <laurent.sallafranque@xxxxxxx>]

Hi,

I've tested again.
Hatari now runs with MMU + 68030 cycle exact.
That's a good job.
This is the closest configuration for the Falcon emulation.

I've given a new try to xtasie and it works again (OK)
underscore demo still doesn't work (it was working with some previous 
versions of hatari).
I also think it's related to cycles exact between DSP and CPU.

Regards
Laurent



Le 03/08/2017 à 16:22, Nicolas Pomarède a écrit :
> Le 02/08/2017 à 22:27, Nicolas Pomarède a écrit :
> > Le 02/08/2017 à 19:41, Laurent Sallafranque a écrit :
> > > Hi
> > >
> > > The MMU core freeze at startup (it doesn't start at all).
> > > It reminds me a previous problem with an infinitite loop in the main 
> > > CPU loop.
> > >
> > > I've tried to start from the non MMU conf (it's OK) and activate the 
> > > MMU + reboot from the gui (it freeze)
> > >
> > > I've tried also to boot directly with the MMU (with hatari.cfg) : it 
> > > freeze too
> > >
> > > Laurent
> >
> >
> > In my case, I see that falcon boots until it reaches the memory test, 
> > so there's a problem at this moment, I may have forgotten sthg while 
> > merging the new cpu part.
> > Does it also stops at memory test for you ?
>
> OK, it's now fixed ; as discussed with Toni, the run_mmu030 functions 
> needed some changes to count cycles depending on whether cycle exact 
> mode was used or not, as the opcode handlers don't return a number of 
> cycles in CE mode.
>
> Nicolas