Re: [hatari-devel] Issues after recent WinUAE CPU core changes

[Toni Wilen <twilen@xxxxxxxxxx>]

> > I meant patch mentioned in Eero's post.
> >
> > > I get:
> > > ------------------------------------------
> >
> > Bleh, no FFC.. Then I am not sure what is going on. 68030 MMU is still
> > extremely annoying to emulate.. (mmu cpu tester would be nice but
> > writing one would be ultra-mega-extremely annoying to do..)
> >
> > Could you compare non-prefetch mode log with prefetch mode logs? They
> > should be almost identical until things go wrong.
> >
> > Note that opcode reads are usually word sized in non-prefetch mode and
> > long sized (and aligned to long word addresses) in prefetch mode. This
> > is normal difference.
> >
> > btw, "terrible stupid" messages probably should not be logged if MMU
> > translation is in use.
>
> Hi toni,
> I see you pushed some 68020/30 prefetch/MMU changes, is that supposed to 
> improve the issue when running linux under TT ?
>
> In all cases, I pushed the changes to Hatari devel tree, so eero can 
> have a look to see if that fixes anything.

Hi

Most likely it won't fix it fully. It was only some quick tweak for one 
corner case. After some debugging my conclusion is that current prefetch 
handling can't be fully 68030 MMU bus error compatible. It needs rewrite 
later..