Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!ihnp4!inuxc!pur-ee!uiucdcs!parsec!ctvax!rob From: rob@ctvax.UUCP Newsgroups: net.jokes.d Subject: Re: Re: Assembler Manual Needed - (nf) Message-ID: <5823@uiucdcs.UUCP> Date: Wed, 22-Feb-84 23:03:16 EST Article-I.D.: uiucdcs.5823 Posted: Wed Feb 22 23:03:16 1984 Date-Received: Fri, 24-Feb-84 00:32:55 EST Lines: 13 #R:astrovax:-22000:ctvax:36800001:000:328 ctvax!rob Feb 21 10:50:00 1984 There is a way to get a PDP-11 to run backwards! The following instruction copies itself to the location preceding it and then executes the new instruction. mov -(pc),-(pc) Great fun until you hit a memory trap or something. Don't hide one in your programs. regards, Rob Spray {decvax!cornell | ucbvax!nbires}!ctvax!rob