Well it seems i got to a dead end, i have most of my work done but now i am out of RAM in my 16f877A, i now HAVE TO migrate to 18f452, so i will have to do it on assembler which i really dont now very well.

I am using portb, timer0 and RX interrupts.

I made it to work the timer int once in this device but i have never used multiple interrupts on it, what has to be done? check flags to see which was the last interrupt? (i dont know ASM), if so, should i manage the interrupt at once or send it to other independent subroutines.

I really am close to cry, all my work and happy moments with this Instant interrupt system seem to come to an end, even more all the work done seems to be useless.

Please help me.