diff --git a/mode/forth.py b/mode/forth.py
index 3084805..f7c6505 100644
--- a/mode/forth.py
+++ b/mode/forth.py
@@ -7,6 +7,13 @@ from mode.python import StringGrammar2
 from mode.pipe import Pipe
 from method.shell import Interact
 
+class CodeGrammar(Grammar):
+    rules = [
+        PatternRule('word', r'[^ ]+'),
+        PatternRule('spaces', r' +'),
+        PatternRule('eol', r' +'),
+    ]
+
 class DataGrammar(Grammar): rules = [PatternRule('data', r'[^)]+')]
 class LineGrammar(Grammar): rules = [PatternRule('data', r'.+')]
 class StringGrammar3(Grammar): rules = [PatternRule('data', r'[^)]+')]
@@ -40,6 +47,7 @@ class ForthGrammar(Grammar):
         NocasePatternRule('builtin', r'(?:constant|2constant|fconstant|variable|2variable|fvariable|create|user|to|defer|is|does>|immediate|compile-only|compile|restrict|interpret|postpone|execute|literal|create-interpret/compile|interpretation>|<interpretation|compilation>|<compilation|\]|lastxt|comp\'|postpone|find-name|name>int|name\?int|name>comp|name>string|state|c;|cvariable|,|2,|f,|c,|\[(?:ifdef|ifundef|then|endif|then|else|\?do|do|loop|\+loop|next|begin|until|again|while|repeat|comp\'|\'|compile)\])(?= |\n|$)'),
 
         # assembly (*)
+        NocaseRegionRule('code', 'code', CodeGrammar, 'end-code'),
         NocasePatternRule('builtin', r'(?:assembler|code|end-code|;code|flush-icache|c,)(?= |\n|$)'),
 
         # xyz
@@ -50,7 +58,7 @@ class ForthGrammar(Grammar):
         NocasePatternRule('number', r'[&#]?-?[0-9]+\.?(?= |$)'),
         NocasePatternRule('number', r"(?:0x|\$)[0-9a-f]+\.?(?= |$)"),
         NocasePatternRule('number', r'[+-]?[0-9]+\.?e?[+-][0-9]+(?= |$)'),
-        PatternRule('forth_word', r'[^ ]+'),
+        PatternRule('forth.word', r'[^ ]+'),
         PatternRule('spaces', r' +'),
         PatternRule('eol', r'\n'),
     ]
@@ -115,7 +123,8 @@ class Forth(Fundamental):
     actions    = [GforthStart, GforthLoadFile]
     tabbercls  = ForthTabber
     colors     = {
-        'forth_word': ('yellow', 'default', 'bold'),
+        'forth.word': ('yellow', 'default', 'bold'),
+        'forth.code': ('green', 'default', 'bold'),
     }
 
 def install(*args):