Arrays

• Arrays are stored contiguously in memory

• We can access array elements using offsets from address of first element

• Assume $s0 holds address of a.

  int a[3];
  ...
  a[2]=a[0] + a[1];
  

  What would assembly language code be?

  Answer:

  lw $t0, 0($s0)        # $t0 holds a[0]
  lw $t1, 4($s0)        # $t1 holds a[1]
  add $t2, $t0, $t1     # $t2 holds a[0]+a[1]
  sw $t2, 8($s0)        # a[2] holds sum of a[0] and a[1]