#self doubt

Question

Is counting semaphore can be implemented using only  Binary semaphore and ordinary machine instruction.?

Comments

the answer is yes

but if you want the implementation you can google search about it  cuz implementation is not required for GATE

---

how can you say that it is true

---

ans is yes i allready known but how ??

---

Ref : https://stackoverflow.com/questions/15117155/show-how-counting-semaphores-can-be-implemented-using-only-binary-semaphores-and