Writing a timer in jack

Posted by ScarySheep on
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Writing-a-timer-in-jack-tp4030687.html

Hello, I am trying to make a game in Jack which requires a countdown timer while the player is playing.
Something like this https://www.youtube.com/watch?v=IYAt9o9tWJY
While looking at the default library, I can't think of a way to support multithreading.
Maybe there is some way of doing it?
Thanks!