Anyone have an "unexec" for FPS 500EA (BSD 4.3)?

[Kenneth D Jordan]

I'm trying to get GNU Emacs running on an FPS Model 500EA, and I'm having a
bit of trouble creating a preloaded version with the builtin "unexec".
It doesn't seem to know enough about the exec structure (specifically,
vendor and magic number fields), and the various offsets (text, data, etc.)
are wrong.  The system is running BSD 4.3.  Any help would be greatly
appreciated.

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                                  Nick Nystrom
                              Chemistry Department
                            University of Pittsburgh
                               nystrom at a.psc.edu
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