＆＃34; MIPS＆＃34; 0x0040003c处的运行时异常：取消地址未在字边界上对齐0x10010005错误

Question

 the C++ version is

 #include <iostream>
 using namespace std;

 int x[10] = {0};
 int pos[6] = {1, 3, 6, 9, -1, -1};
 int data[6] = {73, 47, 23, 26, -1, -1};
 int main() {

 for (int i=0; i<6; i++) {
  if (pos[i] >= 0) {
    int temp = pos[i];
    x[temp] = data[i];
  }
}

  for (int i=0; i<10; i++) {
  cout << x[i] << endl;
}

}

     .data
 x: .word   0:10
 pos:   .word   1
    .word   3
    .word   6
    .word   9
    .word   -1
    .word   -1
data:   .word   73
    .word   47
    .word   23
    .word   26
    .word   -1
    .word   -1

endl:   .asciiz "\n"

# i     $s0
# &x[0]     $s1
# &pos[0]   $s2
# &data[0]  $s3
# 6, 10     $s6

    .text
main:   la  $s1, x
    la  $s2, pos
    la  $s3, data
    li  $s6, 6
    li      $s0, 0          #  for (int i=0; i<6; i++) {
for:    mul $t0,$s0,4       #    if (pos[i] >= 0) {
    add     $t0,$s2,$s0
    lw  $t1,($t0)
    blt     $t1,0,loop


    add  $t2, $s1,$t1    # int temp = pos[i]        
    lw   $t3,4($t2)             #      x[temp] = data[i];   
    add  $t4, $s3,$s0
    lw   $t5, 4($t4)
    sw   $t3, ($t5)

loop:  addi $s0, $s0,1          #    }
    blt $s0, $s6, for           #  }

我一直试图解决这个问题，我得到了＃34;没有对齐字边界错误＆＃34;而我无法弄清楚为什么在第一次迭代后错误似乎从lw $ t3,4（$ t2）开始，预期的输出是  0 73 0 47 0 0 23 0 0 26