diff --git a/main.js b/main.js
index d386be2..38e67c1 100644
--- a/main.js
+++ b/main.js
@@ -149,73 +149,19 @@ function syncEnums(enumGroup, id, newEnumName, callback) {
 
 const type_items_len = {
     'uint8be':    1,
-    'uint8le':    1,
-    'int8be':     1,
-    'int8le':     1,
-    'uint16be':   1,
-    'uint16le':   1,
-    'int16be':    1,
-    'int16le':    1,
-    'int16be1':   1,
-    'int16le1':   1,
-    'uint32be':   2,
-    'uint32le':   2,
-    'uint32sw':   2,
-    'uint32sb':   2,
-    'int32be':    2,
-    'int32le':    2,
-    'int32sw':    2,
-    'int32sb':    2,
-    'uint64be':   4,
-    'uint64le':   4,
-    'int64be':    4,
-    'int64le':    4,
-    'floatbe':    2,
-    'floatle':    2,
-    'floatsw':    2,
-    'floatsb':    2,
-    'doublebe':   4,
-    'doublele':   4,
     'string':     0,
     'ieee754':    2
 };
 
 const _rmap = {
     0: 15,
-    1: 14,
-    2: 13,
-    3: 12,
-    4: 11,
-    5: 10,
-    6: 9,
-    7: 8,
-    8: 7,
-    9: 6,
-    10: 5,
-    11: 4,
-    12: 3,
-    13: 2,
-    14: 1,
-    15: 0
+    1: 14
 };
 const _dmap = {
     0: 0,
-    1: 1,
-    2: 2,
-    3: 3,
-    4: 4,
-    5: 5,
-    6: 6,
-    7: 7,
-    8: 8,
-    9: 9,
-    10: 10,
-    11: 11,
-    12: 12,
-    13: 13,
-    14: 14,
-    15: 15
+    1: 1
 };
+
 function address2alias(id, address, isDirect, offset) {
     if (typeof address                 === 'string') address                 = parseInt(address, 10);