code: def instruction_ROL_memory(self, opcode, ea, m):
          
          r = self.ROL(m)
  #        log.debug("$%x ROL memory value $%x << 1 | Carry = $%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
docs: Rotate memory left