If $Ax=0000000000010011B,Bx=0000000000100110B,Dx=2A7BH,$ what is the value of $Dx$ and $Ax$ after executing the instruction? $($Hint: problem $(1)$ and $(2)$ are independent, in other words, $(1)$ and $(2)$ using the same given value of registers$)20$ points$)$

$(1)$ MUL BL

$(2)$ DIV BL