How do I make bigger ram chips?

Posted by kingpinzs on
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/How-do-I-make-bigger-ram-chips-tp3614086.html

I tried to make a 1mb ram chip but it just locks up the simulator when loading it with no errors.
Do I need to make my 128k ram built in before I can make the 1mb one?