Question

Discuss all the address mode of 8086 with suitable example

Answer 1

Explanation:

The different ways in which a source operand is denoted in an instruction is known as addressing modes. There are 8 different addressing modes in 8086 programming −

Immediate addressing mode

The addressing mode in which the data operand is a part of the instruction itself is known as immediate addressing mode.

Example

MOV CX, 4929 H, ADD AX, 2387 H, MOV AL, FFH

Register addressing mode

It means that the register is the source of an operand for an instruction.

Example

MOV CX, AX ; copies the contents of the 16-bit AX register into

; the 16-bit CX register),

ADD BX, AX