Subject: Re: NetBSD 1.3H snapshot
To: Michael C. Richardson <mcr@sandelman.ottawa.on.ca>
From: Robert V. Baron <rvb@cs.cmu.edu>
List: current-users
Date: 11/23/1998 11:42:11 
You don't have phantoms of every probed device.  I remember an old
AST/DEC machine that if you put bits out on the bus to any nonexisting
port and then read any port within about 10 instructions, you'd see
what you wrote.