Write a MIPS program to ask the user to input the number of

Write a MIPS program to ask the user to input the number of elements of array. The user input should be a positive number less than or equal to 10. Then your program should ask the user to fill up the array and then print the content of array in reverse order. The program must check to see if a negative number of elements was entered.

Solution

Below is the code for the given MIPS program.

.data

   MyArray: .space 40
   msg1: .asciiz \"Enter number of elements in the array less than or equal to 10\"
   msg2: .asciiz \"Enter each number in the array. Make sure you enter a positive integer\"
   msg3: .asciiz \"Array in reversed order are: \"

.global main  
.text
main:
  
   #Prompt user to enter the number of elements in array
   li $v0, 4
   la $a0, msg1
   syscall
  
   #Taking user input
   li $v0, 5
   syscall
  
   # Storing the value of array length in t0
   move $t0, $v0
  
  
   #taking user input in the array
   li $v0, 4
   la $a0, msg2
   syscall
  
   addi $t2,$zero, 1
   addi $t3,$zero, 0
   while:
       beq $t2, $t0, exit
      
       addi $t2, $t2, 1
       li $v0, 5
       syscall
      
       move $t4, $v0
      
       sw $t4, MyArray($t3)
           addi $t3, $t3, 4
       j while
   exit:
  
   li $a0, 4
   mul $t5, $a0, $t0
   sub $t5, $t5, 4
  
  
   #printing the array in reverse
   li $v0, 4
   la $a0, msg3
   syscall
   while:
       beg $t5 , 0 exit
      
       lw $t7 , MyArray($t5)
      
       #printing current number
       li $v0, 1
       move $a, $t7
       syscall
      
       j while
   exit: