bad compilers make bad days.. custom hardware used to (?) use memory locations to control/enable features.. anything from electronic access paths to actual serv

bad compilers make bad days.. custom hardware used to (?) use memory locations to control/enable features.. anything from electronic access paths to actual servo-motors firing. Probably a better idea to use human-readable constructs and avoid this compact and tiny use pattern, IMO. If you want a tricky test for yourself, perhaps some actual hardware design is a better use of time these days?