Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uwm.edu!ogicse!cvedc!mcspdx!adpplz!martin From: martin@adpplz.UUCP (Martin Golding) Newsgroups: comp.unix.questions Subject: Re: why different swapping modes on executables? Message-ID: <614@adpplz.UUCP> Date: 25 Mar 91 18:03:01 GMT References: <1991Mar12.012401.557@nowhere.uucp> <573@adpplz.UUCP> <1991Mar14.043302.3567@cbnewsk.att.com> <9166@sail.LABS.TEK.COM> Distribution: na Organization: ADP Dealer Services R&D, Portland, OR Lines: 24 In <9166@sail.LABS.TEK.COM> terryl@sail.LABS.TEK.COM writes: >>In article <573@adpplz.UUCP>, martin@adpplz.UUCP I wrote: >>> My impression is that the (original) version of the Magic Number was >>> the actual value to load into the PDP 11 MMU control register, to select >>> one or the other model. Which was, of course, nonsense. <:-( and dyson@cbnewsk.att.com (john.s.dyson) was about the hundredth person to say > Pulling out my trusty (but VERY dusty!!! (-:) PDP11 Processor handbook, >the original a.out magic number 0407 (that's octal, folks!!!) says it is >an unconditional branch to seven words (i.e. 14 bytes) past the current PC; OK! OK! I screwed up! I promise never to answer a question again without having the hardware manual in hand, all right? Just let this damn thing die a natural death. Unless you like torturing the mentally incompetent... Martin Golding | sync, sync, sync, sank ... sunk: Dod #0236 | He who steals my code steals trash. A Poor old decrepit Pick(tm) programmer ... Sympathize at: {mcspdx,pdxgate}!adpplz!martin or martin@adpplz.uucp