MIPS程序不起作用

Question

我的mips程序有问题。输入32位数字后，会显示一条消息，表示该数字是否为正方形。但是当您输入数字＆gt; 1000000时，程序不起作用。有人能帮帮我吗？

以mips编程：

.data  
prompt:        .asciiz "\nEnter an integer\n"
squareMessage:  .asciiz " Is square "
nonsquareMessage:   .asciiz " Isnt square "
isntMessage:   .asciiz "Enter possitive number\n "
intMessage:   .asciiz "Number is: "
.text  
main:

loop:
        #print prompt
        la $a0 prompt
        nop
        nop
        addi $v0 $zero 4
        syscall

        #read integer into $t0
        addi $v0 $zero 5
        syscall
        move $t0 $v0
        addi $t1 $zero 1
        beq $t0, 1, vypis
        nop
        nop
        #if cislo mensi nez 1
        blt $t0, $t1, spatne
        nop
        nop
        #if cislo vetsi nez 0
        bgt $t0, $t1, ready
        nop
        nop

ready:      #vypis zadaneho cisla
        la $a0 intMessage
        nop
        nop
        addi $v0 $zero 4
        syscall

        move $a0 $t0
        addi $v0 $zero 1
        syscall

        li $t2, 1 # t2 is our counter (i)
        j for
        nop
        nop
 for:        #for cyclus, zda je zadane cislo mocnina prizozeneho cisla  
        beq $t2, $t0, end # if we are done
        nop
        nop
        mul $t3,$t2,$t2  
        beq $t3, $t0, vypis
        nop
        nop

        #i++
        addi $t2, $t2, 1 # add 1 to t2
        j for
        #nop

end:        #vypis ze zadane cislo neni ctverec
        la $a0 nonsquareMessage
        addi $v0 $zero 4
        j loop
        syscall

vypis:      #vypis ze zadane cislo je ctverec
        la $a0 squareMessage
        nop
        nop
        addi $v0 $zero 4
        j loop
        syscall   
spatne:
        # print enter possitive number
        la $a0 isntMessage
        nop
        nop
        addi $v0 $zero 4

        j loop
        syscall

loopEnd:    jr $ra 

C程序：

int main(){
int n, i, result;
printf("Enter number:\n");

scanf ("%d",&n);
 if(n<=0){
    printf("Enter possitive number");
 }
 else{

 for(i = 1; i<= n;i++){
    result = i * i;
    if(result == n){
        printf("Is square");
        return 0;
    }
 }
 printf("Isnt square");
  }

return 0;
}