maybe don’t just assume all of us knows what ‘GPR’ is. For those maybe wondering, it stands for “General Purpose Registers”.
That is stated in lesson 1. It’s in the first sentence that mentions “GPR” and in the heading directly above it.
(By the way, I’m not the author.)




















Long ago, I solved all of the ways in which PHP made me sad…
…by abandoning it.
Nowadays we have better languages that can do the job at least as well.