vwait(n) on macOS
The text 5215a376d358, as Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2 shipped it.
Process events until a variable is written
The text 5215a376d358, as Mac OS X 10.2.2, Mac OS X 10.2.1, Mac OS X 10.2 shipped it.
Process events until a variable is written