数码管显示HELLO的单片机程序

#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
uchar code hello[]={0x76,0x79,0x38,0x38,0x3f};
uchar code LED_W[8] = {0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
uchar code table[10] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
uchar temp,t0,t1,hundred,ten,bit,flag,flag1;
uint num;
void init();
void display(uchar,uchar,uchar);
void display1();
void delay();
void main()
{
init();
while(1)
{
if(flag1!=1)
display(hundred,ten,bit);
else
display1();
}
}
void init()
{
t0=0;
t1=0;
flag=0;
flag1=0;
num=432;
temp=0xfe;
P1=temp;
TMOD=0x11;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;
EA=1;
ET0=1;
ET1=1;
TR0=1;
TR1=1;
}
void timer0() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
t0++;
if(flag==0)
{
if(t0==10)
{
t0=0;
temp=_crol_(temp,1);
P1=temp;
}
}
else
{
if(t0%4==0)
P1=~P1;
if(t0==60)
{
TR0=0;
P1=0xff;
flag1=1;
}
}
}
void timer1() interrupt 3
{
TH1=(65536-50000)/256;
TL1=(65536-50000)%256;
t1++;
if(t1==2)
{
t1=0;
num--;
hundred=num/100;
ten=num%100/10;
bit=num%10;
if(num==398)
{
TR0=0;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
TR0=1;
flag=1;
t0=0;
P1=0xff;
TR1=0;
}
}
}
void display(uchar h,uchar t,uchar b)
{
P2=LED_W[0];
P0=table[b];
delay();
P2=LED_W[1];
P0=table[t];
delay();
P2=LED_W[2];
P0=table[h];
delay();
P2=LED_W[3];
P0=table[5];
delay();
P2=LED_W[4];
P0=table[6];
delay();
P2=LED_W[5];
P0=table[7];
delay();
}
void display1()
{
P2=LED_W[4];
P0=hello[0];
delay();
P2=LED_W[3];
P0=hello[1];
delay();
P2=LED_W[2];
P0=hello[2];
delay();
P2=LED_W[1];
P0=hello[3];
delay();
P2=LED_W[0];
P0=hello[4];
delay();
}
void delay()
{
uchar x,y;
for(x=0;x<148;x++)
for(y=0;y<10;y++);
}