Question

Write a MIPS program that will ask the user to enter two numbers at the console and compute x^y

Answer 1

The MIPS assembly code for the problem is provided below, please comment if any doubts:

Note: The code is tested using MARS and the screenshot of the output and code is provided at the end,

MIPS code:

#the data segment
.data

msg1: .asciiz "\nInput the x: "

msg2: .asciiz "\nInput the y: "

prdct: .asciiz "\n x^y =: "

#the text segment

.text

.globl main

#the main
main:
  
   #display the prompt 1
li $v0, 4
la $a0, msg1
syscall
     
   #read the number from console
li $v0, 5
syscall
     
   #store the the first number to regitster t3     
add $t3, $v0, $zero
     
   #display the prompt 1
li $v0, 4
la $a0, msg2
syscall

   #read the number from console
li $v0, 5
syscall

   #store the read number in t4 register
add $t4, $v0, $zero

   #perform the multiplication
   addi $t0,$zero,1
   addi $s5,$zero,0

   #the loop to perform the power computation
   loop:
   beq $s5,$t4, result
   mul $t0,$t0,$t3
   addi $s5,$s5,1
   j loop

result:
   #display the result message
li $v0, 4
la $a0, prdct
syscall

   #display the higher part of the result
   li $v0, 1
mfhi $a0
syscall

   #display the lower part of result
li $v0, 1
mflo $a0
syscall

exit_code:

li $v0, 10
syscall
     

Output:

Code screenshot: