ExpDetermineLargePagePolicy

INT64 __fastcall ExpDetermineLargePagePolicy(INT64 a1){
  unsigned __int128 v2; 
  unsigned __int64 v3; 
  unsigned __int64 v4; 
  unsigned __int64 v5; 
  *(_OWORD *)a1 = 0i64;
  *(_QWORD *)(a1 + 16) = 0i64;
  *(_BYTE *)(a1 + 16) = 80;
  *(_QWORD *)&v2 = MmGetNumberOfPhysicalPages(0i64);
  v3 = (unsigned __int64)v2 >> 8;
  v4 = (unsigned __int64)v2 >> 9;
  if( (unsigned __int64)v2 >> 8 < 0x1000 )
  {
    v5 = (unsigned __int64)v2 >> 14;
  }
  else
  {
    if( v3 < 0x4000 )
    {
      v2 = v4 * (unsigned __int128)0x47AE147AE147AE15ui64;
      v4 = *((_QWORD *)&v2 + 1) + ((v4 - *((_QWORD *)&v2 + 1)) >> 1);
    }
    v5 = v4 >> 4;
  }
  *(_QWORD *)(a1 + 8) = -1i64;
  *(_QWORD *)a1 = v5;
  if( v3 <= 0x200 )
  {
    *(_QWORD *)(a1 + 8) = 0i64;
  }
  else
  {
    *(_QWORD *)&v2 = *(_QWORD *)(a1 + 8);
    if( v3 < 0x800 )
      *(_QWORD *)&v2 = 2i64;
    *(_QWORD *)(a1 + 8) = v2;
  }
  return v2;
}

Referenced by: