#source

    while none: {
        true;
        "Hello, world!";
    }
    false;

#bytecode
    
begin:
    PUSHNNE;
    JUMPIFNOTANDPOP end;
    PUSHTRU;
    POP 1;
    PUSHSTR "Hello, world!";
    POP 1;
    JUMP begin;
end:
    PUSHFLS;
    POP 1;
    RETURN 0;