点阵图形上移

#include <reg52.h>
sbit ADDR0=P1^0;
sbit ADDR1=P1^1;
sbit ADDR2=P1^2;
sbit ADDR3=P1^3;
sbit ENLED=P1^4;
unsigned char LedChar[]={
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0x99,0x00,0x00,0x00,0x81,0xC3,0xE7,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF
};

void main()
{
    EA=1;
  ADDR3=0;
  ENLED=0;
  TMOD=0x01;
  TH0=0xFc;
  TL0=0x67;
  ET0=1;
  TR0=1;

  while(1);

}
void InterruptTime() interrupt 1
{
  static unsigned char i=0;
 static unsigned int cnt=0;
 static unsigned int index=0;
 static unsigned int tm=0;
     TH0=0xFc;
  TL0=0x67;
 
  P0=0xFF;

  switch(i)
  {
     case 0:ADDR2=0;ADDR1=0;ADDR0=0;i++;P0=LedChar[0];break;
    case 1:ADDR2=0;ADDR1=0;ADDR0=1;i++;P0=LedChar[1+index];break;
    case 2:ADDR2=0;ADDR1=1;ADDR0=0;i++;P0=LedChar[2+index];break;
    case 3:ADDR2=0;ADDR1=1;ADDR0=1;i++;P0=LedChar[3+index];break;
    case 4:ADDR2=1;ADDR1=0;ADDR0=0;i++;P0=LedChar[4+index];break;
    case 5:ADDR2=1;ADDR1=0;ADDR0=1;i++;P0=LedChar[5+index];break;
    case 6:ADDR2=1;ADDR1=1;ADDR0=0;i++;P0=LedChar[6+index];break;
    case 7:ADDR2=1;ADDR1=1;ADDR0=1;i=0;P0=LedChar[7+index];break;
  }
  cnt++;

  if(cnt>=250)
  {
     cnt=0;
  index++;
  if(index>=16)
  {
     index=0;

  }
  }
}