گروه فنی مهندسی آرکام

typedef union

{

    unsigned char byte;

    struct

    {

         unsigned char error_code : 3;

         unsigned char command : 2;

         unsigned char enable : 1;

         unsigned char error : 1;

         unsigned char ready : 1;

     }bits;

}register_type

...

registerType *pReg = (registerType*)0x00004000; // XXX_REGISTER_MEMORY

pReg->bits.enable = 0;

pReg->bits.error_code = 7;

...

pReg->byte = 0x55