CHANGE LR_IRQ VALUE IN IRQ MODE

CAN YOU PLEASE TELL ME HOW TO CHANGE THE LR_IRQ BANKED REGISTER VALUE WHILE I AM IN IRQ MODE.

JUST A BRIEF EXPLANANTION.BEFORE THE INTERRUPT I WAS IN USER MODE WITH A CERTAIN PC VALUE.NOW AFTER THE INTERUPT I WANT TO RETURN TO ANOTHER LOCATION IN MY PROGRAM I.E DIFFERENT PC VALUE.

THANKS

you mean you do not what to return to same postion where you were called before interrupt had occurred? is it? all i can say is clear the interrupt in service routine, acknowledge the interrupt and jump to address where u want to go.. (like "goto some_lable;" ).