pub fn outb(port: u16, value: u8) void {
    asm volatile (
        \\outb %al, %dx
        :
        : [port] "{dx}" (port), [value] "{al}" (value)
        : .{}
    );
}

pub fn inb(port: u16) u8 {
    var value: u8 = 0;
    asm volatile (
        \\inb %dx, %al
        : [value] "={al}" (value)
        : [port] "{dx}" (port)
        : .{}
    );
    return value;
}