http://gcc.gnu.org/onlinedocs/gccint/Back-End.html
This mentions a file "config.gcc" which I can't find in the GCC source.
This page tells too little I guess.
http://gcc.gnu.org/onlinedocs/gccint/Machine-Desc.html
This stuff would be useful if the GCC build process recognized that I
made some .MD file, but the build process just outputs "Configuration...
not supported...".
Is there a short list of steps to get a very minimal machine specific
back end going? Please point me to some better documents? :)