Add docstrings
Need to constantize these at some point...
    
        | author | Steve Losh <steve@stevelosh.com> | 
    
        | date | Fri, 25 Mar 2016 11:47:29 +0000 | 
    
    
        | parents | 1ef24327a4cb | 
    
        | children | 2579f5d00526 | 
    
        | branches/tags | (none) | 
    
        | files | src/wam.lisp | 
Changes
    
--- a/src/wam.lisp	Fri Mar 25 11:44:54 2016 +0000
+++ b/src/wam.lisp	Fri Mar 25 11:47:29 2016 +0000
@@ -32,8 +32,13 @@
 (define-constant +tag-functor+   #b11
   :documentation "A functor.")
 
-(defparameter functor-arity-width 4)
-(defparameter functor-arity-bitmask #b1111)
+
+(defparameter functor-arity-width 4
+  "Number of bits dedicated to functor arity.")
+
+(defparameter functor-arity-bitmask #b1111
+  "Bitmask for the functor arity bits.")
+
 
 (deftype heap-cell ()
   `(unsigned-byte ,+cell-width+))