3. [3 points) In the snippet of MIPS assembler code below, how many times is instruction memory accessed? How many times is data memory accessed? (Count only accesses to memory, not registers.) lw $vl, 0(Sa) lw Svo, 4(Sa) addi Sv1, Svl, 1 sw Svl, (Sa) addi Sal, Sa0, 4 sub Svo, Svo, Sv1 sw Svo, 0(Sa)