Modify the MIPS program below to ask for both a positive integer n greater then or equal to 3 and a character ch. Now have your program print an n-by-n hollow square of the character ch. For example, if the user entered 3 and X; 4 and U respectfully, it would print the following. Your program is to continue to ask for input and print the output until n=0, which will exit the program.

This program asks for a non-negative integer n, and prints the number as asterisks. 3 = ***, 5 = *****, etc.

.data

prompt: .asciiz "Enter a non-negative value for n: "

newline: .asciiz " "

asterisk: .byte '*'

.text

#prompt and read int

li $v0, 4

la $a0, prompt

syscall

#read int and store in $t0

li $v0, 5

syscall

move $t0, $v0 #store n in $t0

#print n

li $v0, 1

move $a0, $t0

syscall

#prompt newline

li $v0, 4

la $a0, newline

syscall

li $t1, 1 #counter

loop:

bgt $t1, $t0, end_loop

#print asterisk\

li $v0, 11

lb $a0, asterisk

syscall

add $t1, $t1, 1 #increment counter

b loop

end_loop:

#exit

li $v0, 10

syscall

OUTPUT

3xx 4UUU