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Complete 8086 Instruction set with clear Explanation and sample Programs

Click on each instruction to read its function,explanation and its sample Program.

DATA TRANSFER INSTRUCTIONS

GENERAL – PURPOSE BYTE OR WORD TRANSFER INSTRUCTIONS

SIMPLE INPUT AND OUTPUT PORT TRANSFER INSTRUCTION

SPECIAL ADDRESS TRANSFER INSTRUCTION

FLAG TRANSFER INSTRUCTIONS

MOV
PUSH
POP
XCHG
XLAT/XLATB

IN
OUT

LEA
LDS
LES

LAHF
SAHF
PUSHF
POPF

ARITHMETIC INSTRUCTIONS

ADDITION INSTRUCTIONS	SUBTRACTION INSTRUCTIONS	MULTIPLICATION INSTRUCTIONS	DIVISION INSTRUCTIONS
ADD ADC INC AAA DAA	SUB SBB DEC NEG CMP AAS DAS	MUL IMUL AAM	DIV IDIV AAD CBW CWD

BIT MANIPULATION INSTRUCTIONS

LOGICAL INSTRUCTIONS	SHIFT INSTRUCTIONS	ROTATE INSTRUCTIONS
NOT AND OR XOR TEST	SHL / SAL SHR SAR	ROL ROR RCL RCR

STRING INSTRUCTIONS

STRING INSTRUCTIONS

REP
REPE / REPZ
REPNE / REPNZ
MOVS / MOVSB / MOVSW
COMPS / COMPSB / COMPSW
SCAS / SCASB / SCASW
LODS / LODSB / LODSW
STOS / STOSB / STOSW

PROGRAM EXECUTION TRANSFER INSTRUCTIONS

UNCONDITIONAL TRANSFER INSTRUCTIONS

CONDITIONAL TRANSFER INSTRUCTIONS

ITERATION CONTROL INSTRUCTIONS

INTERRUPT INSTRUCTIONS

CALL
RET
JMP

JA / JNBE
JAE / JNB
JB / JNAE
JBE / JNA
JC
JE / JZ
JG / JNLE
JGE / JNL
JL / JNGE

JLE / JNG
JNC
JNE / JNZ
JNO
JNP / JPO
JNS
JO

JP / JPE
JS

LOOP
LOOPE / LOOPZ
LOOPNE / LOOPNZ
JCXZ

INT
INTO
IRET

PROCESS CONTROL INSTRUCTIONS

FLAG SET / CLEAR INSTRUCTIONS	EXTERNAL HARDWARE SYNCHRONIZATION INSTRUCTIONS
STC CLC CMC STD CLD STI CLI	HLT WAIT ESC LOCK NOP

Explanation of Instruction set of 8086 with free Sample Programs – Arithmetic Instructions2SUBTRACTION INSTRUCTIONS SUB Instruction - Subtract two numbers These instructions subtract...Explanation of Instruction set of 8086 with free Sample Programs – BIT MANIPULATION INSTRUCTIONS1LOGICAL INSTRUCTIONS NOT Instruction - Invert each bit of operand NOT perform the bitw...Explanation of Instruction set of 8086 with free Sample Programs – Arithmetic Instructions1ADD Instruction - ADD destination, source These instructions add a number from source to a number...Explanation of Instruction set of 8086 with free Sample Programs – Arithmetic Instructions4DIVISION INSTRUCTIONS DIV Instruction - Unsigned divide-Div source When a double word ...Explanation of Instruction set of 8086 with free Sample Programs –Data Transfer Instructions3SPECIAL ADDRESS TRANSFER INSTRUCTION LEA Instruction - Load Effective Address LEA Ins...Explanation of Instruction set of 8086 with free Sample Programs –Data Transfer Instructions4FLAG TRANSFER INSTRUCTIONS LAHF Instruction - Load Register AH From Flags LAHF instru...Explanation of Instruction set of 8086 with free Sample Programs –Data Transfer InstructionsGENERAL – PURPOSE BYTE OR WORD TRANSFER INSTRUCTIONS MOV Instruction - MOV ...Explanation of Instruction set of 8086 with free Sample Programs – Arithmetic Instructions3MULTIPLICATION INSTRUCTIONS MUL Instruction - Multiply unsigned bytes or words-MUL source MUL ...Explanation of Instruction set of 8086 with free Sample Programs – BIT MANIPULATION INSTRUCTIONS3ROTATE INSTRUCTIONS ROL Instruction - Rotate all bits of operand left, MSB to LSB ROL inst...Explanation of Instruction set of 8086 with free Sample Programs –Data Transfer Instructions2SIMPLE INPUT AND OUTPUT PORT TRANSFER INSTRUCTION IN Instruction - Copy data from...Explanation of Instruction set of 8086 with free Sample Programs – BIT MANIPULATION INSTRUCTIONS2SHIFT INSTRUCTIONS SAL/SHL Instruction - Shift operand bits left, put zero in LSB(s) S...8086 Instruction Set and its ClassificationThe instructions of 8086 are classified into SIX groups. They are: DATA TRANSFER INSTRUCT...Two mark Questions - 8086 Microprocessor1. Define pipelining? Ans: In 8086, to speedup the execution of program, the instructions fetching ...8086 DetailsGeneral Details of 8086 Microprocessor Overview or Features of 8086 Pin Diagram of 8086 and Pin desc...Explanation of Architechture of 8086BUS INTERFACE UNIT: It provides a full 16 bit bidirectional data bus and 20 bit address bus. ...Pin description of 8086 -(contd..)Figure shows the Pin functions of 8086. The following pin functions are for the minimum mode ope...RS232 to TTl interface circuit through transistorAVR microcontroller serial procedures for the preparation of serial Atmega8 SCM frame structure with...Other registers of 8086Instruction Pointer (IP) is a 16-bit register. This is a crucially important register which is used ...Architechture of 8086 or Functional Block diagram of 80868086 has two blocks Bus Interfacing Unit(BIU) and Execution Unit(EU). The BIU performs all bus ...Pin Diagram of 8086 and Pin description of 8086Figure shows the Pin diagram of 8086. The description follows it. The Microprocessor 8086 is a ...

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Complete 8086 Instruction set with clear Explanation and sample Programs