Position relationship of bit fields in bytes in C51-EEWORLD

Collect

typedef struct
{
    uchar DC0_ALA:1; //Power supply 0 alarm
    uchar DC1_ALA:1; //Power supply 1 alarm
    uchar AC_ALA:1; //Power failure alarm
    uchar UN_H_ALA:1; //Same frequency channel machine unlock alarm
    uchar UN_L_ALA:1; //Inter-frequency channel machine unlock alarm
    uchar FAR_ALA:1; //Remote communication failure alarm
  uchar OPEN_ALA:1; //Door placket alarm
  uchar x:1;
}ALARM; //System alarm structure definition
This structure occupies one byte width, and its order is:

typedef struct
{
    D0: uchar DC0_ALA:1; //Power supply 0 alarm
    D1: uchar DC1_ALA:1; //Power supply 1 alarm
    D2: uchar AC_ALA:1; //Power failure alarm
    D3: uchar UN_H_ALA:1; //Same frequency channel machine unlock alarm
    D4: uchar UN_L_ALA:1; //Inter-frequency channel machine unlock alarm
    D5: uchar FAR_ALA:1; //Remote communication failure alarm
    D6: uchar OPEN_ALA:1; //Door placket alarm
    D7: uchar x:1;
}ALARM;//System alarm structure definition

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Keywords：C51 Reference address：Position relationship of bit fields in bytes in C51

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