1、#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void main()
{
uint aa,p,i;
while(1)
{
aa=0xfe;
P1=aa;
for(i=0;i<7;i++)
{
delay(500);
aa=aa<<1;
P1=aa;
}
for(i=0;i<8;i++)
{
delay(500);
aa=aa>>1;
P1=aa;
}
P1=0xff;
delay(50);
for(i=0;i<5;i++)
{
P1=0x00;
delay(300);
P1=0xff;
delay(300);
}
aa=0xfe;
P1=aa;
for(p=0;p<7;p++)
{
delay(500);
aa=_crol_(aa,1);
P1=aa;
}
aa=0x7f;
P1=aa;
for(p=0;p<8;p++)
{
delay(500);
aa=_cror_(aa,1);
P1=aa;
}
for(i=0;i<5;i++)
{
P1=0x00;
delay(300);
P1=0xff;
delay(300);
}
}
}
