Q. The 8085A is a(n):

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The instruction MOV M, r in 8085

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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:

View solution

Q. Which of the following is true?

View solution

Q. To multiply a number by 8 in 8085 we have to use RAL instruction

View solution

Q. How many buses are connected as part of the 8085A microprocessor?

View solution