#include <REG51.H>
sbit LED = P1^0;

void timer0(void) interrupt 1 {
    LED = !LED;
    TH0 = 0x4C;
    TL0 = 0x00;
}

void main(void) {
    TMOD = 0x01;
    TH0 = 0x4C;
    TL0 = 0x00;
    ET0 = 1;
    EA = 1;
    TR0 = 1;
    while (1);
}
