8086 microprocessorinstruction set of 8086
instruction format
data transfer instructions in 8086
one byte instruction
assembler instruction format
assembly language format of 8086
addressing modes of 8086

The instructions in 8086 are 1 to 7 byte long depending on the addressing mode. The immediate byte may be 8 or 16 bit, and the displacement in an instruction can be 0 bits or 8 bits or 16 bits. 8086 Instruction Encoding-1. Encoding of 8086 Instructions ! 8086 Instructions are represented as binary numbers. Instructions require between 1 and 6 bytes. There are six general formats of instructions in 8086 instruction set. The length of an instruction may vary from one byte to six bytes. a) One byte Instruction : This format is only one byte long and may have the implied data or register operands. The table shows the general format of 8086 instructions. 1. One Byte Instruction: These instruction in the category uses the implied addressing mode and There are six general formats of instructions in 8086 instruction set. The length of an instruction may vary from one byte to sic bytes. a) One byte Instruction : This Microprocessor 8086 Instruction Sets - Learn Microprocessor in simple and easy steps NPG ? Used to negate each bit of the provided byte/word and add 1/2's 7 Apr 2013 Each instruction has two parts: one is the task to be performed called the 1. One word or one byte Instruction. It includes the opcode andMost of the opcodes in 8086 has a special 1-bit indicates. They are : W-bit : Some instructions of 8086 can operate on byte or a word. The W-bit in the opcode of such instruction specify whether instruction is a byte instruction (W = 0) or a word instruction (W = 1). 8086 INSTRUCTION FORMATS Compiled by: L. Krishnananda, Assistant Professor, REVA ITM, Bangalore 1 Byte 3 Byte 4 UNIT 2. Instruction Format: The 8086 The 8086 instruction sizes vary from one to six bytes. Depending on the type of coding, an instruction may have more than one hex code.