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The registers that are used as source and destination pointers during DMA operations are

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The registers that are used as source and destination pointers during DMA operations are

(a) GB, GC

(b) GC, BC

(c) GC, GA

(d) GA, GB

The question was posed to me in an interview for job.

Asked question is from I/O Processor 8089 topic in chapter Multimicroprocessor Systems of Microprocessor

1 Answer

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by (49.2k points)
The correct choice is (d) GA, GB

Best explanation: GA register is used as source and GB as destination pointers during DMA operations.

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