mmo backend
===========
The mmo object format is used exclusively together with Professor
Donald E. Knuth's educational 64-bit processor MMIX. The simulator
`mmix' which is available at
<http://www-cs-faculty.stanford.edu/~knuth/programs/mmix.tar.gz>
understands this format. That package also includes a combined
assembler and linker called `mmixal'. 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
<http://www-cs-faculty.stanford.edu/~knuth/mmix.html> for more
information about MMIX. The ELF format is used for intermediate object
files in the BFD implementation.