Question

Using Assembly Language (MIPS), design a program calculator that can perform the following: Addition, Subtraction, Multiplication, Division, Power and Square Root Functions. Code must be able to accept floating point as well.

Answer 1

Code (in MARS Editor):

.data

#for input
printExp1: .asciiz "Enter the First Number :"

#enter first number
printExp2: .asciiz "\nEnter the Second Number :"

#enter 2nd number
  
#user Choice
AddiExp: .asciiz "\nEnter 1 for Addition"
SubExp: .asciiz "\nEnter 2 for Substraction"
MulExp: .asciiz "\nEnter 3 for Multiplication"
DivExp: .asciiz "\nEnter 4 for Division"
  
UserChoice: .asciiz "\nchoice : >>"
  
resultExp: .asciiz "\nResult :"

.text
.globl main

main:

#Taking input 1 here:
#print Exp1
la $a0, printExp1
li $v0, 4
syscall

#taking input
li $v0, 7
syscall

#moving infrom from f0 to f4
mov.d $f4, $f0

#Taking input 2 here:
#print Exp2
la $a0, printExp2
li $v0, 4
syscall

#taking input
li $v0, 7
syscall
  
#moving infrom from f0 to f4
mov.d $f6, $f0
  
# Now user will choose what he wants to do

#additiion
la $a0, AddiExp
li $v0, 4
syscall
  
#substraction
la $a0, SubExp
li $v0, 4
syscall
  
#multiplication
la $a0, MulExp
li $v0, 4
syscall
  
#division
la $a0, DivExp
li $v0, 4
syscall
  
#choice
la $a0, UserChoice
li $v0, 4
syscall
  
#taking users choice
li $v0, 5
syscall
  
#moving input from v0 to t0
move $t0, $v0
  
#setting up the constants for comparison like 1 for addtion
addi $t1, $zero, 1
addi $t2, $zero, 2
addi $t3, $zero, 3
addi $t4, $zero, 4
  
#if user choose 1 for addition
beq $t0, $t1, Addition     #for Addition
beq $t0, $t2, Substraction #for Substraction
beq $t0, $t3, Multiplication #for Multiplication
beq $t0, $t4, Division #for Division

#program ends
li $v0, 10
syscall

#now addition:
Addition:
add.d $f4, $f4, $f6

#print exp
la $a0, resultExp
li $v0, 4
syscall
  
#print sum
mov.d $f12, $f4
li $v0, 3
syscall

#end program
li $v0, 10
syscall



#now substraction:
Substraction:
sub.d $f4, $f4, $f6

#print exp
la $a0, resultExp
li $v0, 4
syscall

#print sum
mov.d $f12, $f4
li $v0, 3
syscall

#end program
li $v0, 10
syscall

  
Multiplication:
#now multiplication:
mul.d $f4, $f4, $f6

#print exp
la $a0, resultExp
li $v0, 4
syscall

#print sum
mov.d $f12, $f4
li $v0, 3
syscall

#end program
li $v0, 10
syscall
  

#now division:
Division:
div.d $f4, $f4, $f6

#print exp
la $a0, resultExp
li $v0, 4
syscall

#print sum
mov.d $f12, $f4
li $v0, 3
syscall

#end program
li $v0, 10
syscall