BOOL __stdcall MiIsFreeSlabPage(INT64 a1){ int v1; __int64 v2; LOBYTE(v1) = MiIsPfnFromSlabAllocation(a1); return v1 && (*(_BYTE *)(v2 + 34) & 7) == 5 && *(_QWORD *)(v2 + 8) >= 0xFFFFFFFFFFFFFFFEui64; }