Dereference

Assuming that the register $\%$rdi contains $8$ bytes that constitute a valid address, write the x$86-64$ instruction to dereference this address and move two bytes from memory into the lowest portion of $\%$rsi.

Tip: Answer using the form: "instr operand$1,$ operand$2"$ with a single space between each of the three parts and include the instruction suffix.