wip

blk/360

@@ -2,14 +2,9 @@
     ( '0': ASCII 0x30 'x': 0x78 0x7830: 30768 )
     DUP @ 30768 = NOT IF 0 EXIT THEN    ( a 0 )
     ( We have "0x" prefix )
-    2+
-    0  ( a r )
-    BEGIN
-    SWAP C@+                            ( r a+1 c )
-    ?DUP NOT IF DROP 1 EXIT THEN        ( r, 1 )
-    _                                   ( r a n )
-    DUP 0< IF ROT 2DROP 0 EXIT THEN     ( a 0 )
-    ROT 16 * +                          ( a r*16+n )
-    AGAIN
-;
-
+    DUP 1- C@ ( a len )
+    0 SWAP ( len ) 2 DO ( a r )
+        OVER I + C@ ( a r c ) _ ( a r n )
+        DUP 0< IF 2DROP 0 UNLOOP EXIT THEN
+        SWAP 4 LSHIFT + ( a r*16+n ) LOOP
+    NIP 1 ;