#!/usr/bin/python

class msr(object):
    def __init__(self):
        try:
            self.f = file('/dev/cpu/0/msr')
        except:
            self.f = file('/dev/msr0')
    def read(self, index, default = None):
        import struct
        self.f.seek(index)
        try:
            return struct.unpack('Q', self.f.read(8))[0]
        except:
            return default

efer = msr().read(0xc0000080, 0)
nx = (efer >> 11) & 1

if nx:
   print 'nx: enabled'
else:
    print 'nx: disabled'