From: cowan@ccil.org (John Cowan)
Subject: [Unix-jun72] more corrections
Date: Thu, 1 May 2008 15:02:26 -0400 [thread overview]
Message-ID: <20080501190226.GA29430@mercury.ccil.org> (raw)
In-Reply-To: <31410.1209664053@mini>
Brad Parker scripsit:
> yes, I think 0405 and 0407 a.out's are different.
>
> I believe the V7 headers are 16 bytes and the text section starts at zero.
> (heh, memory management)
Note that the whole point of the magic number being what it is, is
that it's a PDP-11 unconditional branch instruction to skip the rest of
the header. That way the a.out file could be loaded header and all and
just started at its beginning by jumping into it.
--
Samuel Johnson on playing the violin: John Cowan
"Difficult do you call it, Sir? cowan at ccil.org
I wish it were impossible." http://www.ccil.org/~cowan
next prev parent reply other threads:[~2008-05-01 19:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-01 16:09 Brad Parker
2008-05-01 17:03 ` Tim Newsham
2008-05-01 17:10 ` Al Kossow
2008-05-01 17:19 ` Brad Parker
2008-05-01 17:10 ` Tim Newsham
2008-05-01 17:22 ` Brad Parker
[not found] ` <Pine.BSI.4.64.0805010726040.20990@malasada.lava.net>
2008-05-01 17:47 ` Brad Parker
2008-05-01 17:54 ` Tim Newsham
2008-05-01 18:15 ` Tim Newsham
2008-05-01 18:21 ` Tim Newsham
2008-05-01 18:34 ` Tim Newsham
2008-05-01 22:51 ` Warren Toomey
2008-05-01 23:31 ` Tim Newsham
2008-05-01 19:02 ` John Cowan [this message]
2008-05-01 21:18 ` [Unix-jun72] 11/20 handbook Al Kossow
2008-05-01 23:09 ` Hellwig Geisse
2008-05-01 22:23 ` [Unix-jun72] Early a.out headers Warren Toomey
2008-05-01 22:28 ` Warren Toomey
2008-05-01 23:01 ` Al Kossow
[not found] ` <Pine.BSI.4.64.0805011927100.20114@malasada.lava.net>
2008-05-02 10:24 ` [Unix-jun72] more corrections Brad Parker
2008-05-01 17:44 James A. Markevitch
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