Addressing modes || 8086 microprocessor
Addressing modes of 8086 microprocessor: The addressing modes of an 8086 microprocessor are the methods by which the microprocessor determines the position of operands or data – The 8086 performs the required function in data when it executes an instruction. • Data (operands) May be stored in one of the microprocessor's internal registers – It's possible that it'll be saved at a memory address – It's possible that it'll be stored at an I/O terminal. Various modes of addressing – Immediate operand addressing – Direct addressing – Register operand addressing • Register direct addressing • Register indirect addressing • Register relative addressing – Memory operand addressing Immediate operand addressing – Direct addressing – Register operand addressing Immediate Addressing • What happens in immediate addressing ? – The data comes after the opcode. – The instruction would be encoded with an immediate operand. – The data may be one or two bytes. These data a
