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Need some tips on interrupt handling on ADSP-218x dsp code

Question asked by rockworm on Jul 22, 2016
Latest reply on Jul 26, 2016 by SachinV

I'm a long term embedded guy, but this is my 1st dsp experience. 


I'm looking at existing code that has an interrupt handler.  I read up on the pdf for this dsp about interrupts and I see talk about the stuff automatically pushed to the stack, but what about data registers like AR?  Does the ISR need to back these up to the stack or another memory location to avoid corruption?  The code I am looking at does not.