Question

What is the value stored in variable perimeter after the code has been executed? (6 pts)

.data

              length:        .word 16

              width:        .word 24

              perimeter:     .word 0

       .text

              la $s0, length

              la $s1, width

              la $s2, perimeter

              lw $s3,0($s0)

              lw $s4, 0($s1)

              add $s3, $s3, $s3

              add $s4, $s3, $s4

              add $s5, $s3, $s4

              sw $s5, 0($s2)

Perimeter:__________________________________________

Answer 1

la $s0, length //address of length stored in $s0

              la $s1, width //address of width stored in $s1

              la $s2, perimeter //address of perimeter stored in $s2

              lw $s3,0($s0) //value of length stored in $s3 [ 16 ]

              lw $s4, 0($s1) //value of width stored in $s4 [ 24 ]

              add $s3, $s3, $s3 //add the value in $s3 & $s3 & store it in $s3 [ $s3=16+16 =32 ]

              add $s4, $s3, $s4 //add the value in $s3 & $s4 & store it in $s4 [ $s4= 32+24 =56 ]

              add $s5, $s3, $s4 //add the value in $s3 & $s4 & store it in $s5 [ $s5= 32+56 =88 ]

              sw $s5, 0($s2) //Store the value in address of $s5 to $s2

=> Perimeter = 88

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