Sorry, my reading of your request is:

1. do some stuff in the loop, n times
2. When some condition is true, go to end of loop...
         that is, to the zero-length&height line between the last instruction and the (whatever) outside the loop
3. and just sit there... interminably.

That effectively halts the code and maybe the computer... and certainly halts my speculation about what you want to do, unless you mean to execute your spec as some sort of malware or prank.