Question

In MIPS assembly:

Ask the user to enter two numbers and an operation (+ - / *).

Print the expression back to the user with a blank after the = sign (since the calculation is not being completed.  

Answer 1

Program:

.data
   msg_1: .asciiz "Enter 2 numbers:\n"
   msg_2: .asciiz "Enter operation to be performed(+,-,*,/): "
   result: .asciiz "\nExpression is:\n"
   equal_sign: .asciiz "="
  
.text
.globl main
main:
   #Printing the prompt to the user
   li $v0,4
   la $a0,msg_1
   syscall
  
   #Reading 2 numbers from user
   li $v0,5
   syscall
   move $t0,$v0
  
   li $v0,5
   syscall
   move $t1,$v0
  
   #Printing the prompt to the user
   li $v0,4
   la $a0,msg_2
   syscall

   #Reading character(operation to be performed) from user
   li $v0,12
   syscall
   move $t3,$v0
   #sb $v0,char
  
   #Printing the expression to the user
   li $v0,4
   la $a0,result
   syscall
  
   li $v0,1
   move $a0,$t0
   syscall
      
   li $v0,11
   move $a0,$t3
   syscall
  
   li $v0,1
   move $a0,$t1
   syscall
  
   li $v0,4
   la $a0,equal_sign
   syscall

Output: