3.13 If rl 0xFEAB and r2 4, what is the value of rO after each of the following instructions has been executed (assume that each instruction uses the same data)? (a) ADD r0, r1, r1, LSL #2 (b) ADD ro, r1, r1, LSL #4 (c) ADD ro, r1, r1, ROR #4 3.13 If rl 0xFEAB and r2 4, what is the value of rO after each of the following instructions has been executed (assume that each instruction uses the same data)? (a) ADD r0, r1, r1, LSL #2 (b) ADD ro, r1, r1, LSL #4 (c) ADD ro, r1, r1, ROR #4