Loads a vector from a given memory address.
Function
If ARG2 is a vector, then the result is of the same type as ARG2. Otherwise, the result is a vector containing elements of the same type as ARG2.
ARG1 is added to the address of ARG2, and the sum is truncated to a multiple of 16 bytes. The result is the contents of the 16 bytes of memory starting at this address.