Re: [hatari-devel] TT mono mode Timer-C problem

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

On 17/12/2011 10:35, Nicolas Pomarède wrote:
> Hello
>
> yes, it's a known limitation that at the moment the interrupt events are
> expecting the cpu clock to be 8 MHz. If you use 16 or 32 MHz, interrupts
> won't be good.
> This will be fixed some day, as it can also impact falcon mode, but for
> now all the interrupts events are "locked" to the cpu freq (instead of
> the master bus freq on a real ST/TT/Falcon)

Hmm, I replied too quickly. Hatari will always emulate an 8 MHz cpu 
clock, cpu freq is simulted by dividing cpu cycles by 2 or 4.

So the MFP timers are always good when you change cpu speed (you can 
check this with tos 1.04, your program runs fine in color or mono, with 
8/16/32 cpu freq).

It seems emutos computes $4ba in a different way in mono mode, maybe it 
doesn't use the same 200 Hz timer as in color ?

Nicolas