A factor of an integer N is an integer that divides N evenly. Note that 1 and N

Question

A factor of an integer N is an integer that divides N evenly. Note that 1 and N are always factors of N. For this task, You will need to write a MIPS program that accepts a positive integer from the standard input, counts and reports how many factors of this integer are even and how many are odd. See the sample run below for required format. Sample runs (user input in blue): Please enter a positive int: 20 User input: 20 Number of odd factors: 2 Number of even factors: 4 Please enter a positive int: 27 User input: 27 Number of odd factors: 4 Number of even factors: 0

Explanation / Answer

Given below is the MIPS code and output for the question. Please do rate if it helped. Thank you.

.data
   prompt:       .asciiz "Please enter a positive integer: "
   message:   .asciiz "User input is : "
   space:        .asciiz " "
   outputeven:   .asciiz " Number of even factors:"
   outputodd:   .asciiz " Number of odd factors:"

.text


main:
   #prompt the user
   li $v0, 4
   la $a0, prompt
   syscall
  
   #read int input from user
   li $v0, 5
   syscall
  
   move $t1,$v0 # store n in $t1
  
   #display the user input
   li $v0, 4
   la $a0, message
   syscall
  
   li $v0, 1
   move $a0, $t1
   syscall
  

   add $t2,$zero, 2
   move $t3,$zero #counter for even factors
   add $t4, $zero, 1 #counter for odd factors
loop:
   #check if the current number t2 divides n
   remu $t5,$t1,$t2
   bne $t5,$zero,next #not divisible, goto next
  
   #divisible, so check if $t2 is an odd factor or even factor
   #for this divide by 2 and check remainder
   add $t5,$zero, 2
   remu $t5,$t2,$t5
   bne $t5,$zero,increment_odd
   add $t3, $t3, 1 #increment even counter
   j next
increment_odd:
   add $t4, $t4, 1
next:
   add $t2,$t2,1
   ble $t2,$t1,loop

   #display odd factors
     
   li $v0,4
   la $a0,outputodd
   syscall
   li $v0, 1
   move $a0,$t4
   syscall
  
   #display the even factors
   li $v0, 4
   la $a0, outputeven
   syscall
   li $v0, 1
   move $a0, $t3
   syscall
  

   #exit
   li $v0,10
   syscall

output

Please enter a positive integer: 20
User input is : 20
Number of odd factors:2
Number of even factors:4
-- program is finished running --

Please enter a positive integer: 27
User input is : 27
Number of odd factors:4
Number of even factors:0
-- program is finished running --

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.