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When can a user program execution be interrupted?
It won't be desirable to interrupt a program when an instruction is being executed and is in a state such as instruction decode. The most desirable place for program interruption will be when it has completed the prior instruction and is about to begin a new instruction. Figure below shows instruction execution cycle with interrupt cycle where interrupt situation is acknowledged. Please remember that even interrupt service routine is also a program and after recognizing interrupt next instruction executed by instruction cycle is first instruction of ISR (interrupt servicing routine).
Explain Token Ring. Token Ring: A token ring is a collection of single point -to-point links, which arise from a circle. In a token ring a special bi t pattern, termed as th
Define DMA controller. The I/O device interface control circuit that is used for direct memory access is called as DMA controller.
I think yes...so if 8259 gives interrupt then it will be serviced instantly but since into pin is left hanging the insr bit will never be set...and so whenever any interrupt occurs
4-variable K-maps have 16 squares which arearranged in 4 columns and 4 rows. Columns and rows are labeled with 2 variables. The rows are arranged so that C or D ch
What is object orientation? Object orientation means that we classify software as a collection of discrete objects that incorporate with together DS and behaviour. Four aspe
Explain the relationship amongst Translated address and Load time address. Translated address: Address assigned through the translator Load time address: Address ass
Georg Thimm handles a webpage that lets you search for upcoming or past conferences in a range of AI disciplines.
Higher Order Predicate Logic: In first order predicate logic, we are allowed to quantify over objects only. If we let ourselves to quantify over predicate or function s
Q. Define about Anchor Tag? Anchor tag is used to create links between various objects such as HTML pages, web sites, files etc. It is introduced by characters and termi
Address translation: Compiler time : If it is known in advance that a program will reside at a particular location of primary memory, and then the compiler can be told to
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