vba-clojure bug?

vba-clojure.c

// let the player control the game until he decides he hates it. This is particularly useful for playing from the repl.
void stepUntilCapture() {
    while (currentButtons[0] != 2048) {
        /* if (currentButtons[0] != 0) {
            printf("currentButtons[o] is %d\n", currentButtons[0]);
        } */
        step();
    }    

    // reset the buttons so that this function can be called in the future
    currentButtons[0] = 0; 
}