4 ?magics in the 68000

[Brandon Allbery]

Expires:

Quoted from <3044 at sun.uucp> ["Re: magic numbers? (teach me, please)"], by guy at sun.uucp (Guy Harris)...
+---------------
| ..................................................... (does anybody know why
| there seem to be four(!) different magic numbers for 68000-family
| executables?).
+---------------

Portability, I guess.  The magic numbers are the original PDP-11 ones.

	AMAGIC	The standard magic number
	NMAGIC	Shared text
	IMAGIC	Separate I&D
	OMAGIC	Overlay

While all 4 are described as possible b.out structures in Xenix {2.3a,3.0} and
Plexus sys3, other files say that only AMAGIC and NMAGIC are supported in the
kernel.  (b.out is what Xenix calls the standard 68000 object file, as opposed
to a.out (PDP-11, Z8000) or x.out (Xenix common format). Plexus calls it bhdr.)
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