E0000000 XXXXYYYY : Full terminator
It clears the code execution status.
If XXXX <>0, ba = 0xXXXX0000
If YYYY <>0, po = 0xYYYY0000

That is the definition of a terminating line in the wii cheat type document. In short, use
E0000000 80008000
If you don't understand that above. If your in doubt, still use it, although you only use it for endifs, it won't hurt it. It gets rid of any code interference you have.

Just to clear things up for newer coders, that's why you put it there.

You always need this, even if it doesn't have a button activator, even if its only a one line dvar, always use it.