diff --git a/snippets/cr0.py b/snippets/cr0.py
new file mode 100644
index 0000000..f352cf0
--- /dev/null
+++ b/snippets/cr0.py
@@ -0,0 +1,32 @@
+#
+#
+#
+
+import sys
+from pykd import *
+
+def cr0( value = 0 ):
+
+    if value == 0:
+        value = reg( "cr0" )    
+
+    dprintln( "CR0: %x (" % value + "".join( [  (  value & ( 1 << ( 31 - i ) ) ) and "1" or "0" for i in range(0,31) ] ) + ")" )
+    
+    for i in range (0, 31):
+        bits = { 0 : "PE", 1 : "MP", 2 : "EM", 3 : "TS", 4 : "ET", 5 : "NE", 16 : "WP", 18 : "AM", 29 : "NW", 30 : "CD", 31 : "PG"  }
+        if ( ( 1 << ( 31 -i ) ) & value ) and 31-i in bits:
+            dprint( " " + bits[31-i] )   
+ 
+    dprintln("")                                          
+
+   
+if __name__ == "__main__":
+
+   if not isSessionStart():
+       print "script is launch out of windbg"
+       quit( 0 )
+
+   if (sys.argv[0] != "" ):
+       cr0( int( sys.argv[0], 16 ) )
+   else:
+       cr0()
diff --git a/snippets/cr4.py b/snippets/cr4.py
index b29e1d3..a4437d8 100644
--- a/snippets/cr4.py
+++ b/snippets/cr4.py
@@ -2,6 +2,7 @@
 #
 #
 
+import sys
 from pykd import *
 
 def cr4( value = 0 ):