whats wrong with this code:

# Purpose: This program demonstrates the use of a stack to manage more than $4$ parameters in MIPS assembly.

# The main function calls the reverse$5$ function, which reverses $5$ characters using the stack.

$.$data

# No data section needed for this program

$.$text

$.$globl main

# Main function

main:

# Load the characters into registers

li $a$0,\text{'}$H$\text{'}$ # Load $\text{'}$H$\text{'}$ into $a$0($first parameter$)$

li $a$1,\text{'}$A$\text{'}$ # Load $\text{'}$A$\text{'}$ into $a$1($second parameter$)$

li $a$2,\text{'}$P$\text{'}$ # Load $\text{'}$P$\text{'}$ into $a$2($third parameter$)$

li $a$3,\text{'}$P$\text{'}$ # Load $\text{'}$P$\text{'}$ into $a$3($fourth parameter$)$

# Prepare the fifth parameter manually on the stack

addi $sp$,$ $sp$,-4$

sw $a$0,0($$sp$)$ # Push $\text{'}$H$\text{'}$

addi $sp$,$ $sp$,-4$

sw $a$1,0($$sp$)$ # Push $\text{'}$A$\text{'}$

addi $sp$,$ $sp$,-4$

sw $a$2,0($$sp$)$ # Push $\text{'}$P$\text{'}$

addi $sp$,$ $sp$,-4$

sw $a$3,0($$sp$)$ # Push $\text{'}$P$\text{'}$

li $a$0,\text{'}$Y$\text{'}$ # Load $\text{'}$Y$\text{'}$ into $a$0($fifth parameter

jr $ra

# Restore stack frame

lw $s$0,0($$sp$)$ # Restore $s$0$

lw $ra$,4($$sp$)$ # Restore return address

addi $sp$,$ $sp$,8$ # Deallocate stack space

# Return to caller

jr $ra