Microprocessors and Controllers Quiz 6

How many

modes of operation 8086 Microprocessor supports

• 2

• 3

• 4

• 5

Which

flag is set to 1 when the result of arithmetic or logical operation is zero

else it is set to 0?

• Binary

  bit

• Zero

  flag

• Sign

  flag

• Overflow

  flag

Which flag represents the result when the system capacity is exceeded?

• Carry

  flag

• Auxiliary

  flag

• Trap

  flag

• Overflow

  flag

It is an edge triggered input, which causes an interrupt request to the microprocessor.

• NMA

• INTR

• INTA

• ALE

Which instruction is Used to load the address of operand into the provided register?

• LEA

• LDS

• LES

• LAHF

What type of memory is not directly addressable by the CPU and requires special software called EMS (expanded memory specification)?

• Extended

• Expanded

• . Base

• Conventional

The instructions which after execution transfer control to the next instruction in the sequence are called

• Sequential

  control flow instructions

• control

  transfer instructions

• Sequential

  control flow & control transfer instructions

• none of

  the mentioned

In the instruction, ASSUME CS : CODE, DS : DATA, SS : STACK ,the ASSUME directive directs to the assembler the

• address

  of the stack segment

• pointer

  address of the stack segment

• name of

  the stack segment

• name of

  the stack, code and data segments

After every response to the single step interrupt the flag that is cleared is

• IF

  (Interrupt Flag)

• TF (Trap

  Flag)

• OF

  (Overflow Flag)

• None

  of the mentioned

To estimate the size of an executable program before it is assembled and linked,the programming methodology concerned is by writing

• programs

  with more than one segment for data and code

• programs

  with FAR subroutines each of size up to 64KB

• programs

  with more than one segment for stack

• all

  of the mentioned