 // [CX] Core
 // =============================================================================
 def execute() {
-  // TODO: Method to stop/pause/etc.
   while is_running {
     // STEP -> CPU
     let cycles = cpu_step();


  // Create renderer
  _renderer = SDL_CreateRenderer(_window, -1,
    SDL_RENDERER_ACCELERATED);

  // White initial screen
  SDL_SetRenderDrawColor(_renderer, 155, 188, 15, 255);

extern def fflush(stream: *FILE);
extern def strncpy(dst: str, src: str, count: size_t): str;
extern def clock(): uint64;
extern def rand(): c_int;
extern def sleep(seconds: uint32);

let CLOCKS_PER_SEC: uint64 = 1000000;
