CHANGE LR_IRQ VALUE IN IRQ MODE
Discussion in "ARM Development" started by Fejsu Apr 5, 2009.
Sun Apr 05 2009, 02:53 am
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
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
Sun Apr 05 2009, 11:08 pm
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;" ).
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