> Note that the “q” suffix refers to the size of the pointer *(*i.e in C it represents *sizeof(*src) == 8 on 64-bit systems, and x86asm is smart enough to use 32-bit on 32-bit systems) but the underlying load is 128-bit.

I find that sentence confusing.

I assume that i.e is supposed to be i.e., but What is *(* supposed to mean? Shouldn't that be just an open parenthesis?

In what context would *sizeof(*src) be considered valid? As far as I know, sizeof never yields a pointer.

I get the impression that someone sprinkled random asterisks in that sentence, or maybe tried to mix asterisks-denoting-italics with C syntax.