From mboxrd@z Thu Jan 1 00:00:00 1970 From: clemc@ccc.com (Clem Cole) Date: Wed, 9 Dec 2015 10:07:26 -0500 Subject: [TUHS] v6tar from v7 on v6, too large? In-Reply-To: References: <20151209045357.8573718C0C5@mercury.lcs.mit.edu> <56683CDF.10609@gmail.com> Message-ID: On Wed, Dec 9, 2015 at 9:56 AM, Clem Cole wrote: > check the man page on the a.out format. ​Note to folks on the list - please don't give away the answer... Will A small piece of homework for the student -- look at 407 the magic number for the a.out file ​and see if you can explain why Ken picked that value. Hint it is particular to the PDP-11 architecture and is not portable to other systems, although most other systems that UNIX was "ported" too continued to used the a.out format kept the magic numbers as 407/411 etc., although I know of some ports (like mine own for Magix - the Tek Magnolia system of the late 1970s) that changed the magic number to be correct for that architecture. Clem -------------- next part -------------- An HTML attachment was scrubbed... URL: