There are two tests the auto$-$grader runs when it grades my code. My code passes the first test but fails the second. Here is what I it prints after my code fails the second test: This test will replace your main function with the following:

main:

$.$data

string$\_$to$\_$change: $.$asciiz $"$hi$"$

bad$\_$s: $.$asciiz "Your function overwrote an $s register without restoring it$!$

$"$

$.$text

addiu $sp$,$ $sp$,-52$

sw $ra$,48($$sp$)$

sw $s$7,44($$sp$)$

sw $s$6,40($$sp$)$

sw $s$5,36($$sp$)$

sw $s$4,32($$sp$)$

sw $s$3,28($$sp$)$

sw $s$2,24($$sp$)$

sw $s$1,20($$sp$)$

sw $s$0,16($$sp$)$

li $s$0,0$xf$0$f$7$

li $s$1,0$x$140$a

li $s$2,0$xa$481$

li $s$3,0$xff$75$

li $s$4,0$x$7$ca$4$

li $s$5,0$x$67$ab

li $s$6,0$xa$03$b

li $s$7,0$x$510$a

la $a$0,$ string$\_$to$\_$change

jal replace$\_$start$\_$with$\_$z

bne $s$0,0$xf$0$f$7,$ Lmain$\_$bad$\_$s

bne $s$1,0$x$140$a$,$ Lmain$\_$bad$\_$s

bne $s$2,0$xa$481,$ Lmain$\_$bad$\_$s

bne $s$3,0$xff$75,$ Lmain$\_$bad$\_$s

bne $s$4,0$x$7$ca$4,$ Lmain$\_$bad$\_$s

bne $s$5,0$x$67$ab$,$ Lmain$\_$bad$\_$s

bne $s$6,0$xa$03$b$,$ Lmain$\_$bad$\_$s

bne $s$7,0$x$510$a$,$ Lmain$\_$bad$\_$s

la $a$0,$ string$\_$to$\_$change

li $v$0,4$

syscall

b Lmain$\_$end

Lmain$\_$bad$\_$s:

la $a$0,$ bad$\_$s

li $v$0,4$

syscall

Lmain$\_$end:

lw $ra$,48($$sp$)$

lw $s$7,44($$sp$)$

lw $s$6,40($$sp$)$

lw $s$5,36($$sp$)$

lw $s$4,32($$sp$)$

lw $s$3,28($$sp$)$

lw $s$2,24($$sp$)$

lw $s$1,20($$sp$)$

lw $s$0,16($$sp$)$

addiu $sp$,$ $sp$,52$

jr $ra

This test expects your output to contain at least the following:

Zi

This test expects your output to NOT contain the following:

Exception $0$

Exception $4$

Exception $5$

Exception $6$

Exception $7$

Exception $8$

Exception $9$

Exception $10$

Exception $12$

Your function overwrote an $s register without restoring it$!$

Running test...

$***$ FAIL $***$

$---$ your output $---$

hi

$---$ output must contain $---$

Zi

Here is my code:

$.$data

my$\_$string: $.$asciiz "hello"

$.$text

$.$globl main

main:

subi $sp$,$ $sp$,64$

sw $ra$,60($$sp$)$

sw $a$0,56($$sp$)$

sw $a$1,52($$sp$)$

la $a$0,$ my$\_$string

jal replace$\_$start$\_$with$\_$z

la $a$1,$ my$\_$string

jal PrintString

li $v$0,0$

lw $ra$,60($$sp$)$

lw $a$0,56($$sp$)$

lw $a$1,52($$sp$)$

addi $sp$,$ $sp$,64$

jr $ra

end$\_$function:

li $v$0,10$

syscall

jr $ra

replace$\_$start$\_$with$\_$z:

subi $sp$,$ $sp$,28$

sw $ra$,24($$sp$)$

sw $a$0,20($$sp$)$

la $a$2,$ my$\_$string

jal strlen

blez $v$0,$ end$\_$function

li $t$1,\text{'}$Z$\text{'}$

sb$,$ $t$1,0($$a$2)$

lw $ra$,24($$sp$)$

lw $a$0,20($$sp$)$

addi $sp$,$ $sp$,28$

jr $ra

$.$include $"./$util$.$s$"$