[求助] 点阵不流动？请教！

下面是个点阵教程能流动，我在protues仿真不能流动，并且显示的字也不对？请教了

#include <reg51.h>

char XD[ ]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x60};

char code YD[] ={

0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7,

0xb7,0xab,0xa9,0x81,0xab,0xab, 0xab,0xbf,

0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7, 0xf7,

0xf7, 0x81, 0xb7, 0x83, 0x97, 0x83, 0xb7, 0xb7};

void delay(int x) {

       int i,j;

for(i=0;i<x;i++)

   for(j=0;j<120;j++);

}

main()

{

       int i,t,k=0;

       while(1)

{

       for(t=0;t<10;t++)

{

for(i=0;i<8;i++)

{

                     P2=XD;