code: def get_t_response(self, forceSignal=None):
          
          if forceSignal is not None:
              response = six.b('T' + conversion.byte_to_hex2(forceSignal))
          else:
              response = six.b('T' + conversion.byte_to_hex2(self.get_signal_value()))
  
          # Append fp(r7), sp(r13), lr(r14), pc(r15)
          response += self.get_reg_index_value_pairs([7, 13, 14, 15])
  
          return response
docs: Returns a GDB T response string.  This includes:
              The signal encountered.
              The current value of the important registers (sp, lr, pc).