code: def get_reg_index_value_pairs(self, regIndexList):
          
          str = b''
          regList = self._context.read_core_registers_raw(regIndexList)
          for regIndex, reg in zip(regIndexList, regList):
              str += six.b(conversion.byte_to_hex2(regIndex) + ':' + conversion.u32_to_hex8le(reg) + ';')
          return str
docs: Returns a string like NN:MMMMMMMM;NN:MMMMMMMM;...
              for the T response string.  NN is the index of the
              register to follow MMMMMMMM is the value of the register.