main.c

c51指针练习程序

#include <REGX55.H>

typedef struct 
 {
  unsigned char year;
  unsigned char month;
  unsigned char day;
  }DATE;

  xdata DATE date;
  data  DATE date1;
  data char d[3] ={'x','y','z'}; 
  xdata  char b[3]  _at_  0x200;
main()
   {
    date1.year = 'y';
	date1.month= 'm';
	date1.day  = 'd';
   
	date = date1;
    *((DATE xdata *)0x200) =*((DATE*)d);
    *((DATE*)b) = date1;
	while(1);
   
   }