nebogeo/spork-factory — pull request #1 by progranism (2013-01-05 00:01:40+00:00)
Title: ROR and ROL Instructions Don't Require 2 Items on the Stack

I just noticed while perusing your code that the implementations of the ROR and ROL instructions required that there be two items on the stack. However, they only use one item from the stack. I forked your repo and patched it to only require one item.