# this program multiplies num1 and num2, the result is stored in product
.lcomm num1 2 # reserve two bytes for num1
.lcomm num2 2 # reserve two bytes for num2
.lcomm product 2 # reserve two bytes for product

.text
.global _start
_start:


   nop # so I can stop at the next instruction
   movw num2,%ax
# product is implicitly initialized to zero because of lcomm
   movw $0,product

addAgain:
   # check the condition (num1 > 0)
   cmpw $0,num1
   jz endOfMult
   # num1 > 0
   addw %ax,product
   subw $1,num1
   jmp addAgain # end while, go back and check the condition again
endOfMult:


   movl $1,%eax
   int $0x80