+=== Word: HEX
+
+....
+Data stack: ( -- )
+....
+
+"HEX" is a function word that sets <<p_base,BASE>> to 16, which uses
+letters a-f as additional digits. (Uppercase letter are also accepted
+on input).
+
+====
+.Definition concept for HEX
+****
+: HEX 16 BASE ! ;
+****
+====