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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def instruction_ADD16(self, opcode, m, register):
 """ Adds the 16-bit memory value into the 16-bit accumulator source code forms: ADDD P CC bits "HNZVC": -aaaa """

        assert register.WIDTH == 16
        old = register.value
        r = old + m
        register.set(r)
#        log.debug("$%x %02x %02x ADD16 %s: $%02x + $%02x = $%02x" % (
#            self.program_counter, opcode, m,
#            register.name,
#            old, m, r
#        ))
        self.clear_NZVC()
        self.update_NZVC_16(old, m, r)