10.10: adda/meta.compiler:
. there should be a meta.compiler
that lets you  write a list of
transforms from adda to target lang
and then the meta compiler is
generating the compiler from this list .
. to get started, just make the usual compiler;
and, along the way,
be looking for how to generalize the process;
. the first step is to finalize the adda lang,
then write a translation map from general adda
to the simple adda that maps directly to c
(eg, procedures can't be nested ).