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//0x4 bytes (sizeof)
struct _MMPTE
{
    union
    {
        ULONG Long;                                                         //0x0
        struct _MMPTE_HARDWARE Hard;                                        //0x0
        struct _HARDWARE_PTE Flush;                                         //0x0
        struct _MMPTE_PROTOTYPE Proto;                                      //0x0
        struct _MMPTE_SOFTWARE Soft;                                        //0x0
        struct _MMPTE_TRANSITION Trans;                                     //0x0
        struct _MMPTE_SUBSECTION Subsect;                                   //0x0
        struct _MMPTE_LIST List;                                            //0x0
    } u;                                                                    //0x0
};