8.2 LAB: Arithmetic expression - add/sub Given the mapping of registers to variables below, write a program to implement the following expression: Z=A+B+CD Ex: If the values of $t0,$t1,$t2, and $t3 are initialized in the simulator as: the result is stored in $t4 : Note: Use the '+' button under the Registers display to initialize register values for $t0,$t1, $t2, and $t3. 465082.2636444.q3zqy7