#include "t89c51cc01.h"
#include "compiler.h" //just atmel compiler header file



char dat;
unsigned char dat2;

int number;
unsigned int x;

main (void)
{
dat=0x00;
while (1)
{
x++;
switch (x)
	{
	case 10:
		P0=0x00;
		break;
	default: P0=0xff;
	}
if (x==150) x=0;
}
}