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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_BLS(self, opcode, ea):
 """ Causes a branch if the previous operation caused either a carry or a zero result. When used after a subtract or compare operation on unsigned binary values, this instruction will branch if the register was lower than or the same as the memory register. Generally not useful after INC/DEC, LD/ST, and TST/CLR/COM instructions. source code forms: BLS dd; LBLS DDDD CC bits "HNZVC": ----- """

#         if (self.C|self.Z) == 0:
        if self.C == 1 or self.Z == 1:
#            log.info("$%x BLS branch to $%x, because C|Z==1 \t| %s" % (
#                self.program_counter, ea, self.cfg.mem_info.get_shortest(ea)
#            ))
            self.program_counter.set(ea)