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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The instruction MOV M, r in 8085

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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?

View solution

Q. The 8085A is a(n):

View solution

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

View solution

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

View solution

Q. Which flag of the 8085's flag register is not accessible to programmer directly?

View solution

Q. Which of the following interrupt is maskable?

View solution