--- capa/capa51/pProj/capaUnit.c	2000/08/22 18:01:19	1.8
+++ capa/capa51/pProj/capaUnit.c	2000/09/14 20:25:12	1.9
@@ -1743,18 +1743,18 @@ p_new_unit(Unit_t *left_p, Unit_t *right
             err_code = 3;
 	    cu_p->u_type   = U_UNKNOWN;
           }
-        } else {
+        } else { /* symb_str is not in <prefix><units> form */
           /* printf("<<%s>>", symb_str); */
           err_code = 2;
 	  cu_p->u_type   = U_UNKNOWN;
         }
       } else {/* len == 1 */
-        /* printf(" not found\n"); */
+        /* printf(" not found in symbol tree \n"); */
         err_code = 1;
 	cu_p->u_type   = U_UNKNOWN;
       }
     }
-  } else {
+  } else { /* why would we have a length less than zero symb_str ? */
     err_code = 4;
   }