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Microprocessor Questions Set 2:

Quiz Mode

Which of the following are 8085 hardware interrupts?

TRAP

RST 6.5

RST 7.5

All of the above

Solution:

Which of the following is NOT a control bus signal?

READ

RESET

WRITE

None of the above

Solution:

What is the ISR (Interrupt Service Request) address of the hardware interrupt RST 6.5?

34h

3Ch

24h

2Ch

Solution:

Which of the following 8080 CPU instructions helps with storing the accumulator indirectly?

STA

STAX

SHLD

XCHG

Solution:

Based on the addressing modes, the instruction set of the 8085 microprocessor is classified into how many types?

Solution:

Which of the following instructions is an example of the "Register Addressing Mode"?

MOV A, 2FH

MOV D,[BC]

MOV A,B

None of the above

Solution:

Which of the following 8080/8085 CPU instructions helps exchange the contents of the H and L registers with the top of the stack?

XTHL

XCHG

SPHL

SHLD

Solution:

Which of the following 8080 microprocessor opcodes performs a logical AND operation between the contents of the memory and the accumulator?

ANI

ANA

AND

XRA

Solution:

Which of the following is not an addressing mode of the 8085 microprocessor?

Immediate Addressing

Memory direct Addressing

Solution:

What is the function of the Control Generator in a microprocessor?

None of the above

Controls the signals received from the accumulator

Generates signals within the microprocessor to carry out the instruction which has been decoded

Shifts the control from the microprocessor

Microprocessor Questions Set 2:

Which of the following are 8085 hardware interrupts?

Solution:

Which of the following is NOT a control bus signal?

Solution:

What is the ISR (Interrupt Service Request) address of the hardware interrupt RST 6.5?

Solution:

Which of the following 8080 CPU instructions helps with storing the accumulator indirectly?

Solution:

Based on the addressing modes, the instruction set of the 8085 microprocessor is classified into how many types?

Solution:

Which of the following instructions is an example of the "Register Addressing Mode"?

Solution:

Which of the following 8080/8085 CPU instructions helps exchange the contents of the H and L registers with the top of the stack?

Solution:

Which of the following 8080 microprocessor opcodes performs a logical AND operation between the contents of the memory and the accumulator?

Solution:

Which of the following is not an addressing mode of the 8085 microprocessor?

Solution:

What is the function of the Control Generator in a microprocessor?

Solution:

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