RCX and Scout opcode constants

RCX_AbsVarOp RCX_AndVarOp RCX_AutoOffOp RCX_BatteryLevelOp RCX_BootModeOp RCX_CalibrateEventOp RCX_ClearAllEventsOp RCX_ClearCounterOp RCX_ClearMsgOp RCX_ClearSensorOp RCX_ClearSoundOp RCX_ClearTimerOp RCX_DatalogOp RCX_DecCounterOp RCX_DeleteSubOp RCX_DeleteSubsOp RCX_DeleteTaskOp RCX_DeleteTasksOp RCX_DirectEventOp RCX_DisplayOp RCX_DivVarOp RCX_GOutputDirOp RCX_GOutputModeOp RCX_GOutputPowerOp RCX_IncCounterOp RCX_InputModeOp RCX_InputTypeOp RCX_IRModeOp RCX_LightOp RCX_LSBlinkTimeOp RCX_LSCalibrateOp RCX_LSHysteresisOp RCX_LSLowerThreshOp RCX_LSUpperThreshOp RCX_MessageOp RCX_MulVarOp RCX_MuteSoundOp RCX_OnOffFloatOp RCX_OrVarOp RCX_OutputDirOp RCX_OutputPowerOp RCX_PBTurnOffOp RCX_PingOp RCX_PlaySoundOp RCX_PlayToneOp RCX_PlayToneVarOp RCX_PollMemoryOp RCX_PollOp RCX_RemoteOp RCX_ScoutOp RCX_ScoutRulesOp RCX_SelectProgramOp RCX_SendUARTDataOp RCX_SetCounterOp RCX_SetDatalogOp RCX_SetEventOp RCX_SetFeedbackOp RCX_SetPriorityOp RCX_SetSourceValueOp RCX_SetTimerLimitOp RCX_SetVarOp RCX_SetWatchOp RCX_SgnVarOp RCX_SoundOp RCX_StartTaskOp RCX_StopAllTasksOp RCX_StopTaskOp RCX_SubVarOp RCX_SumVarOp RCX_UnlockFirmOp RCX_UnlockOp RCX_UnmuteSoundOp RCX_UploadDatalogOp RCX_ViewSourceValOp RCX_VLLOp

#define RCX_ClearMsgOp   0x90 Clear message