Microprocessor
Which of the following statements for intel 8085 is correct?

 PC specifies the number of instructions executed so far
 PC specifies the address of the instruction being executed
 Program Counter (PC) specifies the address of the instruction last executed
 PC specifies the address of the instruction to be executed

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Microprocessor
In a vector interrupt

 the branch address is obtained from a register in the processor.
 the interrupting source supplies the branch information to the processor through an interrupt vector.
 the branch address is assigned to a fixed location in memory.
 none.

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

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