Crashman's routine was made for TI-82 yes. It won't work on 83 or 84 because it needs a little modification(shouldn't be hard).
Yes it was originally BASIC+xLIB. Simply put...H*** no. There would be no point in finishing it since XBASIC can not match up to ASM when it comes to action games.
Anyways there are no updates for the Massacre because I have been busy with finals which SUCK. Some good news is that I tested out(I won't have to take it next year) Computer Concepts 2, and Advanced Programming Techniques since they were both about C++ programming. So I have to take this philosophical type of computer course next year about optimization and how to figure out optimizations on high-level by the low-level x86 assembly. After that in my junior year it is on to my college computer courses!!!!!!