actually i am using RCIF interrupt method to extract RFID reader values(12 bytes) through serial port. and also i have a timer for servo and port B interrupt also... when i only had serial communication interrupt, it worked so fine. but when i added these two more routines, at times the RFID reader is still working but at times not reading, that means the RFID tag reading is not that efficient, some times it doesnt even read... but majority of time it does...
so what i am thinking of is that in case if a serial data is ready in RCreg and before i move it, if some other interrupt happens then it will go there and my serial communication will be affected... to me my serial comunication is the at most priority, coz i cant have a miss or in correct reading. thats why i wanted to prioritise it so that there wont be any interference.
i had this idea in my mind to disable the global interrupt once the RCIF interrupt occurs and den enable the GIE it back after i do the ISR for RCIF...
i donno whether it would be of help, let me try... and i will keep u guys updated...
thanks for the response