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#include "reg52.h"
#include "intrins.h"
typedef unsigned char u8;
typedef unsigned int u16;
#define led P1
void delay(u16 i)
{
while(i--);
}
void total_on()
{
led=0x00;
delay(50000);
}
void total_off()
{
led=0xff;
delay(50000);
}
void total_flash()
{
total_on();
total_off();
total_on();
total_off();
}
void left_led()
{
u8 i;
for(i=0;i<7;i++){
led=_crol_(led,1);
delay(50000);
}
}
void right_led()
{
u8 i;
for(i=0;i<7;i++){
led=_cror_(led,1);
delay(50000);
}
}
void main()
{
u8 j=3;
while(j--)
{
led=0xfe;
left_led();
total_flash();
led=0x7f;
right_led();
total_flash();
}
}
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