Question

Write a MIPS assembly program to repeatedly read two non-negative integers and print the integer product and quotient without using the multiplication and division instructions. Each input number will be entered on a separate line. Your program will terminate when two zeroes are entered by the user. If only the second number in a pair is zero, then a divide-by-zero error message should be printed for the division operation. Use comments generously in your program. Test your program with the following sets of values:

18 6
16 5
5 11
21 4
2 16
17 2
0 10
10 0
20 5
6 6
0 0

Hand in the program with output.

Answer 1

str1: .asciiz "Enter a: "

str2: .asciiz "Enter b: "

str3: .asciiz "a/b = "

str4: .asciiz "a%b = "

str5: .asciiz "a*b = "

newline: .asciiz "\n"

.text

main: li   $v0, 4           

la   $a0, str1        

syscall               

li   $v0, 5           

syscall               

add $s0, $v0, $zero  

li   $v0, 4           

la   $a0, str2        

syscall  

            

li $v0, 5     

syscall        

move $s1, $v0      

#DO THE CALCULATIONS

div $s0, $s1       

mflo    $t0        

mfhi    $t1        

mult $s0, $s1

mflo $t2

li $v0,1

move $a0, $t2

syscall

li $v0,4

la $a0, str5

syscall

li   $v0, 4           

la   $a0, str3        

syscall               

#print a/b

li $v0, 1     

move $a0, $t0     

syscall

li $v0, 4

    la $a0, str4

    syscall

li $v0, 1

move $a0, $t1

syscall

li $v0, 10    

syscall