With all the talk and rumors of a coming worldwide economic carsh lately, was wondering this:

Let's say you buy a house in calm economic times. You put half down, get a 30 year mortgage, and pay $1000/mo at 6%.

Then hyperinflation hits. A cup of coffee costs $1 million, like in Venezuela and Zimbabwe.

What happens to your mortgage? (assuming the banks are still standing) Do you pay it off with your pocket change? Or is there a catch?

(I recently read mortgage papers, 15 pages of it, and don't see any clause about money becoming worthless. But then again, I'm not a lawyer either)

Thanks in advance for your input.