Q. Which of the following is true?

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Q. The register in the 8085A that is used to keep track of the memory address of the next op-code to be run in the program is the:

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Q. The data bus in 8080A/8085 microprocessor is a group of

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Q. In 8085, to disable the whole interrupt system (except TRAP)

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Q. Exceptions to the 8085 microprocessor normal operation are called:

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Q.
In 8085 microprocessor, which of the following interrupts has the highest priority?

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Q. Which of the following was not a design improvement for the 8086/8088 over the 8085?

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Q. The instruction MOV M, r in 8085

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Q. When we use RRC instruction once in 8085, the number is

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Q. In a 3 byte instruction of 8085, the first, second and third byte respectively indicate

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Q. In 8085 microprocessor, which of the following is not vectored interrupt?

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Q. How many input-output ports can be accessed by direct method of 8085 microprocessor?

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Q. When was the first 8-bit microprocessor introduced?

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Q. Which of the following buses does not exist in 8085?

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Q. In 8085 microprocessor, what is the length of SP (stack) pointer?

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Q. Which of the following instructions in 8085 does not belong to data transfer group?

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Q. Consider the following statements about 8085

The instruction LDA uses direct addressing mode.
The instruction MVI uses direct addressing mode.
The instruction MVI uses immediate addressing mode.
The instruction LDA uses immediate addressing mode.
Which of the above are correct?

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Q. The 8085A is a(n):

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Q. In 8085 microprocessor the value of the most significant bit of the result following the execution of any arithmetic or Boolean instruction is stored in

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Q. The flag register content after execution of following program by 8085
microprocessor shall be
Program
SUB A
MVI B, (01)H
DCR B
HLT

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