Re: http://www.complang.tuwien.ac.at/forth/gforth/Docs-html/Crash-Course-Tutorial.html#Crash-Course-Tutorial
I tried to enter the first instruction, and there was an immediate failure before I could enter the rest of the program. The error message was: :1: Invalid memory address 0 0 >>>!<<< The screenshot of the failure is here: http://bit.ly/9J5Gyl
