Re: [hatari-devel] 060 + DSP -> freeze

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 29/12/2014 00:17, Laurent Sallafranque a écrit :
> The patch is ok, (tested with Starstruck demo again ;)
>
> A little thought : as cycles all take 1 cycles in 68060 mode, would it
> be possible to run faster then 32 mhz only for 68060 to have a faster
> CT60 emulation ?)

That's a little complicated with current code, because 1 cycle is 
already the minimal for 1 instruction.
If you divide it again by 2 or 4, you will get 0 cycle per instruction, 
and nothing will work anymore.

Another solution would be to handle non integer cycle count (for example 
0.25). WinUAE has some code to handle this, but it's not used in Hatari 
for now (it would require some rewrite, I didn't have a look at this so far)

But as all cyles are internally multiplied by 256 in latest WinUAE code, 
something should be possible later.

Nicolas