Microprocessor
PUSH B instruction in 8085 microprocessor causes

 registers B & C to be cleared
 the contents of registers B & C to be transferred in the stack and and the registers get cleared
 the contents of register B only to be copied in the stack
 the contents of register B & C to be copied in the stack

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Microprocessor
ALU (Arithmetic and Logic Unit ) of 8085 microprocessor consists of

 Accumulator, temporary register, arithmetic and logic circuits
 Accumulator, arithmetic, logic circuits and five flags
 Accumulator, arithmetic and logic circuits
 Accumulator, temporary register, arithmetic, logic circuits and five flags

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

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

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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.
 A is false but R is true.
 A is true but R is false.
 Both A & R are true and R is the correct explanation of A.

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