Hey krispiekream-
As stated earlier in this thread, it is unclear precisely what is going on in your code. The attached file is a vi library, is there a particular vi that you had questions about? While looking at the memory_decode.vi, it looks like the vi just breaks down the hexadecimal data from "Data2" and assigns the remains to various global variables based on the Address (input to the case structure). Beyond that, I am not sure what this particular vi is trying to accomplish.
However, there are some debugging tools that you may find handy as you dig into this code a little more. Some of these techniques include highlight execution, breakpoints, diagram disable, etc. See Debugging Techniques for a little more information on each of these. These tools may allow you to get a better understanding of what is actually going on in your code.
Hope this helps.
-Ben
