[nynyny7]

I don't get the purpose, at least of his minimal example. The author says he wants to make his code position-independent, i.e., so that it can be executed from everywhere in memory (without relocation). But that is defeated by the...

mov edx, print

... in the example.

[0x0]

They should have put labels in front of and after the string bytes, then most assemblers would evaluate "(labelafter - labelbefore)" to a constant integer giving the length as needed. No need for a runtime sub instruction either, then.

[yenz0r]

Yeah the example wont work, but since it's only used for getting the length of the string its an easy to fix to instead use pascal/counted strings with a length prefix byte.