Question

1. Convert the following C statement to MIPS code. Assume x, y and z are assigned to registers $s0, $s1 and $s2 respectively and the starting address of array A is $s6.

x = y + z + A[3] 2.

2.Convert the following C statement to MIPS code. Assume the base address of array A is $s3 and h is assigned to register $s2

. A[7] = h + A[7]

Answer 1

1) x = y + z + A[3]

lw $t0 12($s6)      #$to = A[3]
add $t0 $t0 $s2     #$to = A[3] + z
add $s0 $t0 $s1     #x = A[3] + z + y

2)

A[7] = h + A[7]

lw $t0 28($s3)      #$to = A[7]
add $t0 $t0 $s2 #$to = A[7] + h
sw $t0  28($s3)     #A[7] = A[7] + h


Thanks, let me know if there is any concern.