> Are you talking about SH4 interrupts or Potoato interrupts now? (Note
> that both the DC and the VMS have dedicated hardware to handle the
> communication. On the DC, you have DMA to do the communication, on the
> DC the "Work RAM" memory is used for incoming and outgoing messages.
> The actual message exchange is all done in hardware.

i am solely talking about the VMU interrupts. i wondered what
the DC and VMU were talking about during the init phase and
if there is way to have a look into that.

leo.