小玩LED点阵之-滚动显示

#include
#define uchar unsigned char
uchar code tab[]={
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*空白*/
0x00,0x18,0x24,0x42,0x42,0x42,0x42,0x24,0x18,/*0*/  //共阴
0x00,0x18,0x1C,0x18,0x18,0x18,0x18,0x18,0x3C,/*1*/
0x00,0x3C,0x66,0x42,0x60,0x30,0x1C,0x86,0x7E,/*2*/
0x00,0x3C,0x42,0x40,0x3C,0x40,0x40,0x42,0x3C,/*3*/
0x00,0x30,0x38,0x2C,0x26,0x23,0xFF,0x20,0x20,/*4*/
0x00,0x7E,0x02,0x3E,0x40,0x40,0x40,0x42,0x3C,/*5*/
0x00,0x3C,0x42,0x02,0x3A,0x46,0x42,0x42,0x3C,/*6*/
0x00,0x7C,0x42,0x40,0x20,0x10,0x08,0x08,0x08,/*7*/
0x00,0x3C,0x42,0x42,0x3C,0x42,0x42,0x42,0x3C,/*8*/
0x00,0x3C,0x42,0x42,0x42,0x7C,0x40,0x42,0x3C,/*9*/
0x00,0x24,0x7E,0xFF,0xFF,0xFF,0x7E,0x3C,0x18,//心形
};
uchar count;
void delay (uchar t)
{
 uchar i=100;
 while(t--)
 while(i--); 
}
void init_T()   //中断和定时器初始化
{
 IE=0x82;  //打开总中断，定时器T1和T0中断
 TMOD=0x01;  //设定T1，T0位工作方式1
 TH0=0x9e;
 TL0=0x58;  //T0装初值
 TR0=1;   //开始时钟开始工作
}
void main()
{
 
 uchar i,j;
 init_T();
 while(1)
 {  
  for(j=0;j<99;j++)  //控制显示的字符数，一定要为8的整数倍
  {
   for(count=0;count<5;) //此处控制每个字的滚动时间，5为1秒一帧，10为2秒，一次类推
   {
    for(i=0;i<8;i++) //行扫描，此为8*8点阵，扫描8行
    {      
     P1=(0x01<