Slide 86 of 97
Notes:
In memory, I had values A0 through A1, which were 16-bit values. Using load-word, its possible to get A0 and A1, two 16-bit values, in a 32-bit register.
For A1, we want to load word on X, so X0 and X1, are in by-16 memory, and we pull that into a 32-bit register. Now we have X0 in the lower half of the register and X1 in the high half of the register.