Thanks for this response! It pretty much is a reflection of my understanding of Perl's memory addressing capabilities so far.
As for my underlying objective, I am trying to understand the concept of buffer overflow and have been experimenting around with it a little. In particular, I have been unable to create a simple buffer overflow (in analogy to how this would be achieved in a simple C programme) and am therefore trying to gain deeper insight into how Perl manages memory allocation. It's exactly at this point that I would like to see what values certain memory addresses have been allocated.