Bios Update

Stupid me went and updated the Bios on my old cyrix 686 and now i have no floopy drive or mouse.I know what i done wrong [when it said the number does not correspond with your sys i should have said no instead of yes][told you i was stupid]anyway damage done now. Is there anyway i can rectify this. I did backup my OLD BIOS but i cant boot up without a floopy drive.I have tried everything i know [not much ah] so if anyone can help it would be greatly appreciated.