Re: [hatari-devel] Microwire register value on Falcon

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

On 03/02/2012 23:02, Laurent Sallafranque wrote:
> Hi,
>
> I've finally taken 10 minutes to write the microwire emulation to the end.
> Like this, it's fully emulated.
>
> Regards
>
> Laurent

Hello

in your patch, could you use DmaSnd_InterruptHandler_Microwire instead 
of creating Crossbar_InterruptHandler_Microwire ? The reason for this is 
that modifying the interrupts array in cycint.c changes the snapshot 
memory format, which means you can't load previous snapshot after that.

For the user, we should try to avoid changing snapshot format when 
possible, so when running in falcon mode, you can use the 
DmaSnd_InterruptHandler_Microwire interrupt instead.

In DmaSnd_InterruptHandler_Microwire, you can then call 
Crossbar_InterruptHandler_Microwir if machine == falcon

Interrupt handling in cycint.c is one of the most used part in the 
emulation, it's called each time a CPU instruction is processed ; the 
smaller we keep the possible interrupts list, the faster this list is 
reordered when an interrupt happens.

Nicolas