unit v012form;

shared atomic var ticks: u16 = 0;
packed struct Packet {
    tag: u8,
    value: u16,
}
interrupt_safe fn poll() { }
interrupt fn timer() { }

pub fn demo() {
    var count = undefined;
    count = 1;
    critical { ticks += 1; }
    let x = true and not false or false;
    let y = x orelse true;
    let e = error.NotFound;
}