The FORTRANish mess that once was is now mostly idiomatic C. Some issues
remain to be cleaned up:
-* The remaining shared globals: WD1, WD1X, WD2, WD2X. These are used
- rather promiscuously to pass around information that ought to be function
- arguments in a modern language.
-
* Remaining unstructured gotos in do_command().
* The program is still pretty much typeless - full of magic numbers being