Re: [hatari-devel] WinUAE CPU core MMU option and CPU accuracy?

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Le 17/11/2016 à 18:23, Laurent Sallafranque a écrit :
I second that.
The falcon is a machine with a MMU, it should be enabled.
But maybe the timings in MMU mode are worse than in cycle exact or
prefetch mode.

We should be careful with that before enabling the MMU


IIRC without looking at the sources now, cpu is indeed less cycle-accurate when MMU mode is set.

I guess for now MMU mode is more about running unix like OSes under 680x0 cpu where memory protection and all are needed, than about being cycle accurate to run demos/games.

Maybe it could be disabled by default for falcon, I don't think many games/demos are using it anyway, and TOS test for MMU can be bypassed during boot.


Le 16/11/2016 à 21:32, Eero Tamminen a écrit :

Almost all of the games & demos currently listed
in compatibility doc as needing MMU with WinUAE
CPU core, work also if:
- oldUAE CPU core is used instead, or
- CPU exact & compatible options are enabled

What enabling MMU for 030 does in regards to
WinUAE CPU core emulation accuracy?

    - Eero

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