For example, http://felixcloutier.com/x86/MOVDQU.html

This instruction can be used to load a YMM register from a 256-bit memory

If alignment checking is enabled (CR0.AM = 1, RFLAGS.AC = 1, and CPL = 3), an alignment-check exception (#AC) may or may not be generated (depending on processor implementation) when the operand is not aligned on an 8-byte boundary.

location, to store the contents of a YMM register into a 256-bit memory location, or to move data between two YMM registers.

Should be "This instruction can be used to load a YMM register from a 256-bit memory location, to store ...", and then the 1. If alignment checking... footnote at the end of the whole section.

Intel's PDF puts footnotes at the end of a page, with a horizontal line separating them from the rest of the text.

This issue is quite confusing for the MOV to/from segment registers entry (which isn't currently on the site at all) because the footnote text almost looks like it could be continuing on from the break in the main text.

I searched for footnotes in the PDF by searching for 1. (with a trailing space).