int rmOdd(int *src, int n, int *dest)
{
   int i, j = 0;
   for (i = 0; i < n; i++) {
      if (src[i]%2 == 0) {
         dest[j] = src[i];
         j++;
      }
   }
   return j;
}

.text
    .globl  rmOdd
# params: src=$a0, n=$a1, dest=$a2
rmOdd:
    # prologue
    addi    $sp, $sp, -4
    sw  $fp, ($sp)
    la  $fp, ($sp)
    addi    $sp, $sp, -4
    sw  $ra, ($sp)
    addi    $sp, $sp, -4
    sw  $s0, ($sp)
    addi    $sp, $sp, -4
    sw  $s1, ($sp)

# function body
    move $t1, $a0   #src
    move $t2, $a1   #n
    move $t3, $a2   #dest
    li   $t4, 1     #i = 1
    li   $t5, 1     #j = 1
loop_1:
    bge $t4, $t2, end_loop1    #if i >= n
    mul $t6, $t4, 4      #i = i*4
    add $t6, $t6, $t1    #i = i*4+src
    lw  $t6, ($t6)       #t4 = src[i]
    rem $t7, $t6, 2      #if src[i] % 2 != 0
    bnez $t7, i_increment

    mul $t8, $t5, 4     #j = j*4
    add $t8, $t8, $t3   #j = j*4+dest
    lw  $t8, ($t8)
    move $t6, $t8       #src[i] = dest[j]
    addi $t5, $t5, 1
i_increment:
    addi $t4, $t4, 1
    j loop_1
end_loop1:
    move $v0, $t5

# epilogue
    lw  $s1, ($sp)
    addi    $sp, $sp, 4
    lw  $s0, ($sp)
    addi    $sp, $sp, 4
    lw  $ra, ($sp)
    addi    $sp, $sp, 4
    lw  $fp, ($sp)
    addi    $sp, $sp, 4
    jr  $ra