void history_beginFilter(history_t* past, U16 frame, TAG* tag, FILTER* value);
void history_remember(history_t* past, char* parameter, U16 frame, int function, float value, interpolation_t* inter);
void history_rememberFilter(history_t* past, U16 frame, int function, FILTER* value, interpolation_t* inter);
void history_beginFilter(history_t* past, U16 frame, TAG* tag, FILTER* value);
void history_remember(history_t* past, char* parameter, U16 frame, int function, float value, interpolation_t* inter);
void history_rememberFilter(history_t* past, U16 frame, int function, FILTER* value, interpolation_t* inter);