#include <stdio.h>
#include <reg51.h> 
main()
{
int a,b;
int *pointer_1, *pointer_2;        //定義指針變量 
a = 100; b = 10;
pointer_1 = &a;
pointer_2 = &b;

SCON = 0x50; 
TMOD |= 0x20; 
TH1 = 0xf3; 
TR1 = 1;
TI = 1;

printf("%d,%d\n",a,b);
printf("%d,%d\n",*pointer_1,*pointer_2);
}