//Plays a tone on the system speaker for 1 second

#include <stdio.h>

int main()
{
    __asm__("movb $0xB6, %al\n"
            "outb %al, $0x43\n"
            "inb $0x61, %al\n"
            "orb $0x03, %al\n"
            "outb %al, $0x61\n"
            "movb $0x64, %al\n"
            "outb %al, $0x42\n"
            "movb $0x01, %al\n"
            "outb %al, $0x42\n");
    sleep(1);
    __asm__("inb $0x61, %al\n"
            "andb $0xFC, %al\n"
            "outb %al, $0x61\n");
    return 0;
}