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SWI interrupt (SVC) on ARM Cortex A9

fairuz wan ismail
Note: This was originally posted on 9th February 2011 at http://forums.arm.com

Hi,
Right now I'm trying  to access some CP15 registers (ARM Cortex A9). And these registers can  be accessed only in privileged mode which is normal. Actually I dont  know how to change from user mode to svc mode easily. I read that we can  use SW interrupt but how can I attach my handler function to the SWI? can I just write to the address 0x08 the pointer to the handler?
Thanks for your time.
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