Question

asembley language please

Chapter 3 Arithmetic

1. Enter three test scores from the keyboard. Compute and display the average of the scores.
2. Display the product (just to do some multiplication) of the three scores.

Answer 1

Below is your MIPS assembly code :

.data   # data section

# defining string
enter_integer: .asciiz "Enter 3 test scores: "
average:       .asciiz "average: "
multiply:      .asciiz "\nmultiply: "

.text # text section
       
.globl main

main:
   # printing "enter_integer" to console
   la $a0, enter_integer
   li $v0, 4
   syscall

   # reading integer from user
   li $v0, 5
   syscall
   move $t1,$v0 # storing 1st test score to $t1

   # reading integer from user
   li $v0, 5
   syscall
   move $t2,$v0 # storing 1st test score to $t2   

   # reading integer from user
   li $v0, 5
   syscall
   move $t3,$v0 ## storing 1st test score to $t3

   # printing "average: " to console
   la $a0, average
   li $v0, 4
   syscall
   # adding all 3 test scores and saving them to $s1
   li $s1,0
   add $s1,$s1,$t1
   add $s1,$s1,$t2
   add $s1,$s1,$t3
   # loading $s0 with 3
   li $s0,3
   # calculating average and storing result to $s1
   divu $s1,$s1,$s0
   # printing average
   la $a0,($s1)
   li $v0,1
   syscall

   # printing "multiply: " to console
   la $a0, multiply
   li $v0, 4
   syscall
   # loading $s1 with 1
   li $s1,1
   # multiplying all test socres and saving them to $s1
   mulu $s1,$s1,$t1
   mulu $s1,$s1,$t2
   mulu $s1,$s1,$t3
   # printing multiplication of test scores
   la $a0,($s1)
   li $v0,1
   syscall

   done:
   # terminating program
   move $v0,$0
   add $v0,$v0,10
   syscall

Sample Output: