union _unnamed_1558// Size=0x4
{
    unsigned long NumberOfEntries:10;// Offset=0x0 Size=0x4 BitOffset=0x0 BitSize=0xa
    unsigned long PageSize:2;// Offset=0x0 Size=0x4 BitOffset=0xa BitSize=0x2
    void * Va;// Offset=0x0 Size=0x4
    unsigned long VaLong;// Offset=0x0 Size=0x4
};