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

Please find the answer below.
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code.asm

.data
prompt: .asciiz "\nEnter the numbers pairs below"
prompt1: .asciiz "Product : "
prompt2: .asciiz " Quotient : "
prompt3: .asciiz "\nNum1 : "
prompt4: .asciiz "Num2 : "
.globl main
.text

main:
li $v0,4
la $a0,prompt #it will print prompt
syscall

loop2:
li $v0,4
la $a0,prompt3 #it will print prompt
syscall
li $v0,5
syscall #ask user input
move $t1,$v0 #save a to t1
li $v0,4
la $a0,prompt4 #it will print prompt
syscall
li $v0,5
syscall #ask user input
move $t0,$v0 #save a to t1

beq $t0,$zero,checkNext
j skipCheck
checkNext:
beq $t1,$zero,exitCode
skipCheck:

li $t2,0 #quotient
move $t3,$t1 #product
loopDiv:
blt $t1,$t0,exit #load while $t1 >= $t0
sub $t1,$t1,$t0
add $t2,$t2,1 #increase quotient by one
j loopDiv
exit:

li $t4,0 #store sum
li $s0,0 #load index to -
loopMul:
bge $s0,$t0,exit2 #load while $t1 >= $t0
add $t4,$t4,$t3 #add number
add $s0,$s0,1 #increase quotient by one
j loopMul
exit2:

#extra code to print both valuesli $v0,1
li $v0,4
la $a0,prompt1 #it will print prompt
syscall

li $v0,1
move $a0,$t4
syscall #print quotient

li $v0,4
la $a0,prompt2 #it will print prompt
syscall

li $v0,1
move $a0,$t2
syscall #print quotient
j loop2

exitCode:
li $v0,10
syscall