MIPS - Writing a simple string

.data
msg:    .ascii "MPGH"  # Non-null string

.text
main:                  # Beginning of function
	la $a0, msg # Loads address of the msg label to the register $a0
	li $v0, 4      # Loads the integer 4 in to the register $v0, output string
	syscall        # Starts the function
	
	j end          # Jumps to the end label

end:                   # Label
        li $v0, 10     # Loads the integer 10 in to the register $v0, tells the program to stop
	syscall        # Starts the function