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<h3 class="section">3.5 mmo backend</h3>

<p>The mmo object format is used exclusively together with Professor
Donald E. Knuth's educational 64-bit processor MMIX.  The simulator
<span class="command">mmix</span> which is available at
<a href="http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz">http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz</a>
understands this format.  That package also includes a combined
assembler and linker called <span class="command">mmixal</span>.  The mmo format has
no advantages feature-wise compared to e.g. ELF.  It is a simple
non-relocatable object format with no support for archives or
debugging information, except for symbol value information and
line numbers (which is not yet implemented in BFD).  See
<a href="http://www-cs-faculty.stanford.edu/~knuth/mmix.html">http://www-cs-faculty.stanford.edu/~knuth/mmix.html</a> for more
information about MMIX.  The ELF format is used for intermediate
object files in the BFD implementation.

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