typedef struct bit0 : 1

#define Uint unsigned int
typedef struct
{
Uint bit0  : 1;
Uint bit1  : 1;
Uint bit2  : 1;
Uint bit3  : 1;
Uint bit4  : 1;
Uint bit5  : 1;
Uint bit6  : 1;
Uint bit7  : 1;
Uint bit8  : 1;
Uint bit9  : 1;
Uint bit10 : 1;
Uint bit11 : 1;
Uint bit12 : 1;
Uint bit13 : 1;
Uint bit14 : 1;
Uint bit15 : 1;
}Bit;



typedef struct
{
Uint bytel  : 8;
Uint byteh  : 8;
}Byte;

typedef union
{
Bit bit;
Byte byte;
Uint port;
}UNport;




#define PA      ((volatile UNport *)(0x7000))
#define PA_Buffer  ((volatile UNport *)(0x7001))
#define PA_Dir    ((volatile UNport *)(0x7002))
#define PA_Attrib    ((volatile UNport *)(0x7003))
#define PA_Latch    ((volatile UNport *)(0x7004))
#define PB      ((volatile UNport *)(0x7005))
#define PB_Buffer    ((volatile UNport *)(0x7006))
#define PB_Dir    ((volatile UNport *)(0x7007))
#define PB_Attrib    ((volatile UNport *)(0x7008))
#define Poscu      ((volatile UNport *)(0x7013))
#define Ptbu      ((volatile UNport *)(0x700e))
#define Ptbc      ((volatile UNport *)(0x700f))
#define Pt0    ((volatile UNport *)(0x700a))
#define Pt1      ((volatile UNport *)(0x700c))
#define Pt0u      ((volatile UNport *)(0x700b))
#define Pt1u      ((volatile UNport *)(0x700d))
#define Pintu    ((volatile UNport *)(0x7010))
#define Pintc    ((volatile UNport *)(0x7011))
#define Padm      ((volatile UNport *)(0x7014))
#define Padl    ((volatile UNport *)(0x702c))
#define Padu      ((volatile UNport *)(0x7015))
#define Padmuxu  ((volatile UNport *)(0x702b))
#define Pda0      ((volatile UNport *)(0x7017))
#define Pda1      ((volatile UNport *)(0x7016))
#define Pdau      ((volatile UNport *)(0x702a))
#define Pwdogc    ((volatile UNport *)(0x7012))
#define Pflashu  ((volatile UNport *)(0x7555))



//-------------------------------------------------------------------------------------------------------



//              ;



#define Watchdog_Clear  Pwdogc->port



#define P0_0  PA->bit.bit0
#define P0_1  PA->bit.bit1
#define P0_2  PA->bit.bit2
#define P0_3  PA->bit.bit3
#define P0_4  PA->bit.bit4
#define P0_5  PA->bit.bit5
               ?       ?Uint bit: 1;
: 1?   ?                     ?

typedef struct 
{ 
Uint bit0 : 1; 
Uint bit1 : 1; 
Uint bit2 : 1; 
Uint bit3 : 1; 
Uint bit4 : 1; 
Uint bit5 : 1; 
Uint bit6 : 1; 
Uint bit7 : 1; 
Uint bit8 : 1; 
Uint bit9 : 1; 
Uint bit10 : 1; 
Uint bit11 : 1; 
Uint bit12 : 1; 
Uint bit13 : 1; 
Uint bit14 : 1; 
Uint bit15 : 1; 
}Bit; 
      16   ,      ,                    .   16   

typedef struct 
{ 
Uint bit0 : 1; 
Uint bit1 : 1; 
Uint bit2 : 1; 
Uint bit3 : 1; 
Uint bit4 : 1; 
Uint bit5 : 1; 
Uint bit6 : 1; 
Uint bit7 : 1; 
Uint bit8 : 1; 
Uint bit9 : 1; 
Uint bit10 : 1; 
Uint bit11 : 1; 
Uint bit12 : 1; 
Uint bit13 : 1; 
Uint bit14 : 1; 
Uint bit15 : 1; 
}Bit; 

       1 bit，   bit