VOID __stdcall KiSetSystemAffinityThreadToProcessor(UINT64 ProcessorIndex, GROUP_AFFINITY *PreviousAffinity){
unsigned int v2;
struct _GROUP_AFFINITY Affinity;
Affinity = 0i64;
v2 = KiProcessorIndexToNumberMappingTable[(unsigned int)ProcessorIndex];
Affinity.Group = v2 >> 6;
Affinity.Mask = 1i64 << (v2 & 0x3F);
KeSetSystemGroupAffinityThread(&Affinity, PreviousAffinity);
}