Microprocessor
A good assembly language programmer should use general purpose registers rather than memory in maximum possible ways for data processing. This is because:

 Data processing with registers is easier than with memory
 Data processing with registers takes fewer cycles than that with memory
 Of limited set of instructions for data processing with memory
 Data processing with memory requires more instructions in the program than that with registers

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Microprocessor
The interrupt facility is provided in microprocessor to

 stop the microprocessor when desired
 change the sequence of the instructions being executed
 stop the microprocessor when it starts malfunctioning
 keep a control on the working of the microprocessor

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Microprocessor
Assertion(A): Segment override prefix (SOP) is used when a default offset register is not used with its default base segment register but with a different base register. Reason(R): The offset registers IP and SP can never be associated with any other segment registers apart from their respective default segments.

 Both A & R are true and R is the correct explanation of A.
 A is false but R is true.
 Both A & R are true but R is not the correct explanation of A.
 A is true but R is false.

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