[+] added: windbg snippet displaying CR4 register

git-svn-id: https://pykd.svn.codeplex.com/svn@56566 9b283d60-5439-405e-af05-b73fd8c4d996

snippets/cr4.py

@@ -0,0 +1,34 @@
+#
+#
+#
+
+from pykd import *
+
+def cr4( value = 0 ):
+
+    if value == 0:
+        value = reg( "cr4" )    
+
+    dprintln( "CR4: %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 : "VME", 1 : "PVI", 2 : "TSD",  3 : "DE", 4 : "PSE", 5 : "PAE",  6 : "MCE",  7 : "PGE",  8 : "PCE",  9 : "OSFXSR", 10 : "OSXMMEXCPT",   13 : "VMXE",  14 : "SMXE", 17 : "PCIDE", 18 : "OSXSAVE"  }
+        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] != "" ):
+       cr4( int( sys.argv[0], 16 ) )
+   else:
+       cr4()
+    
+
+