It should be "viens ici", with an s at the end. And when calling a cat (the equivalent of "here kitty, kitty, kitty") you would just say rapidly "minou, minou, minou". If it's your cat, and you know the name, you'd stand on the doorstep and call the name in a long, drawn-out way, followed by the minou, minou bit. If you're holding out your hand to an unknown cat and trying to entice it over, then "Hé minou, viens ici" works very well.
Judg, who lived in Quebec with a cat.
Now see what you've gone and done. I'm all nostalgic, both for Quebec and for a cat.