interrupt U0 IntBeepOn()
{
*(dev.uncached_alias+LAPIC_EOI)(U32 *)=0; //signal end of interrupt
Snd(34);
}
interrupt U0 IntBeepOff()
{
*(dev.uncached_alias+LAPIC_EOI)(U32 *)=0;
Snd;
}
U0 IntTest()
{//Modify interrupt descriptor table use by all cores.
IntEntrySet(I_USER,&IntBeepOn,IDTET_TRAP);
IntEntrySet(I_USER+1,&IntBeepOff,IDTET_TRAP);
//Issue interupt to core1
MPInt(I_USER,1);
Sleep(1000);
MPInt(I_USER+1,1);
}
IntTest;