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8086 Addressing Modes MCQs

Practice 8086 Addressing Modes MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Microprocessors & Microcontrollers8086 Addressing Modes

The 8086 instruction MOV AX,[BX] uses which addressing concept for the memory operand?

  • ARegister indirect addressing
  • BImmediate addressing
  • CImplied addressing
  • DPort addressing only
Report an error
Correct Answer: A. Register indirect addressing
Explanation: BX contains the effective offset address of the memory operand, making this a register-indirect memory reference.
Reference: Standard microprocessors and microcontrollers: 8086 addressing modes
Question 2
Microprocessors & Microcontrollers8086 Addressing Modes

In 8086 immediate addressing, the operand is?

  • AIncluded in the instruction itself
  • BAlways stored at address 00000H
  • CAlways in the stack
  • DSupplied only by an interrupt
Report an error
Correct Answer: A. Included in the instruction itself
Explanation: An immediate operand is encoded as part of the instruction.
Reference: Standard microprocessors and microcontrollers: 8086 addressing modes