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OPERATING SYSTEMS Lecture Notes
www.svecw.edu.inInterrupt transfers control to the interrupt service routine generally, through the interrupt vector, which contains the addresses of all the service routines Interrupt architecture must save the address of the interrupted instruction Incoming interrupts are disabled while another interrupt is being processed to prevent a lost interruptnA
Section 8. Interrupts - Microchip Technology
ww1.microchip.comGenerally the interrupt flag bit(s) must be cleared in software before re-enabling the global inter-rupt to avoid recursive interrupts. Once in the interrupt service routine the source(s) of the interrupt can be determined by polling the interrupt flag bits. Individual interrupt flag bits are set regardless of the status of their