FIFO without using m9k block ?

Hi guys,

I wonder if there is a way to use a fifo without using m9k blocks ? (I precise that my fifo is just a data clk domain transfert so no need of addresses, just empty and full with data_in and out signals.)

I'm actually trying to re-route a fifo which is in m9k block but I have no more m9k blocks available...

Thanks for your help !

Regards.