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In non vectored interrupts interrupting device send the ISR address but on internet it is as follows:
  • Non-vectored interrupt is an interrupt that has a common ISR, which is common to all non-vectored interrupts in the system. Address of this common ISR is known to the CPU.
 in vector interrupts ISR location is fixed and stored in a vector but it is as follows:
 
  Q.In a vectored interrupt:   (GATE 1995)
A. The branch address is assigned to a fixed location in memory
 B. The interrupting source supplies the branch information to the processor through an interrupt vector 
C. The branch address is obtained from a register in the processor 
D. None of the above  
 
Answer is B
why?
 
please clear my doubts 
Thank You
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