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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Hatari and OUTSIDE (virtual memory manager)
- From: Uwe Seimet <Uwe.Seimet@xxxxxxxxx>
- Date: Tue, 2 Oct 2018 19:23:46 +0200
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Hi,
Did you also check the MC68030 user's manual? It's probably more detailed.
At least at the time I was writing code using the PMMU I only had that
manual, but not the PRM.
Incredible, at that time Motorola sent you those manuals for free, you
just had to ask them.
Best regards
Uwe
> > Toni, I read the 68000 family's PRM for PTEST and I don't see a mention
> > for checking TTR regs when ptest's level is > 0.
> > In the MMU status register, bit "transparent" is only updated for a
> > level=0 operation.
> >
> > Could there be an error in this part of the emulation ?
>
> Yeah, it looks like it is wrong. It would make no sense to do TTR check
> when MMUSR T bit is documented as being zero if PTEST level 1-7.
>
> 68030 MMU is far too complex and too weird.. (At least it is far less
> weird than 68851..)
>
>