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#include<reg52.h>
#include<intrins.h>
void Delay( unsigned int t);
void one(unsigned char time);
void two(unsigned char time);
void Delay(unsigned int t)
{
while(--t);
}
void one(unsigned char time)
{
unsigned char i;
for(i=0;i<8;i++)
{
P1<<=1;
Delay(time);
P3<<=1;
Delay(time);
P2<<=1;
Delay(time);
P0<<=1;
Delay(time);
}
}
void two(unsigned char time)
{
unsigned char i;
unsigned char temp;
temp=0xfc;
P2=temp;
for(i=0;i<7;i++)
{
Delay(time);
temp<<=1;
temp=temp|0x01;
P2=temp;
}
temp=0x3f;
P2=temp;
for(i=0;i<7;i++)
{
Delay(time);
temp>>=1;
temp=temp|0x80;
P2=temp;
}
}
void main(void)
{
while(1)
{
one(30000);
two(20000);
}
}
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