Logical shift left memory location / Arithmetic shift of memory left

def instruction_LSL_memory(self, opcode, ea, m):
        """
        Logical shift left memory location / Arithmetic shift of memory left
        """
        r = self.LSL(m)
#        log.debug("$%x LSL memory value $%x << 1 = $%x and write it to $%x \t| %s" % (
#            self.program_counter,
#            m, r, ea,
#            self.cfg.mem_info.get_shortest(ea)
#        ))
        return ea, r & 0xff