void __fastcall IopAcquirePassiveInterruptBlockLock(__int64 a1, unsigned __int8 *a2){ unsigned __int8 CurrentIrql; CurrentIrql = KeGetCurrentIrql(); __writecr8(0xCui64); *a2 = CurrentIrql; KxAcquireSpinLock((UINT64 *)(a1 + 56)); }