main:
   lw    $t0, x         # $t0 = x
   addi  $t0, $t0, 4    # $t0 = x + 4
   li    $t1, 2         # $t1 = 2
   mul   $t0, $t0, $t1  # $t0 = (x+4) * 2
   sw    $t0, y         #   y = (x+4) * 2
   
   li    $v0, 0         # return 0
   jr    $ra

   .data
x: .word  3   # int x = 3;
y: .space 4   # int y;