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1.2.2 8086 Execution Unit (EU) Explained | Registers, ALU & Flags | Part 2 | EngineeringBytes

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May 3, 2026
7:08

Welcome back to our 8086 Microprocessor Full Course! In this video, we cover the Execution Unit (EU) of 8086 Microprocessor, which is responsible for executing instructions and performing operations. This is Part 2 of the architecture series, focusing on registers, ALU, and flag register with clear explanations. In this video, you will learn: * What is Execution Unit (EU) in 8086 * Functions of EU * General Purpose Registers → AX, BX, CX, DX * Pointer and Index Registers → SP, BP, SI, DI * Arithmetic Logic Unit (ALU) * Flag Register and its bits (CF, ZF, SF, OF, etc.) * Instruction Decoder and Control Unit * Working of EU in instruction execution This video is part of our **8086 Microprocessor series**, covering: Watch the full playlist for complete 8086 Microprocessor coverage! https://youtube.com/playlist?list=PLb3zTMK5_gl7Ytc6sdHZ3CQWLSLwnZdAd&si=rLBxVhywN9L1Nbjt Watch the full playlist for complete 8051 Microcontroller coverage! https://youtube.com/playlist?list=PLb3zTMK5_gl6JWnhN1cFZst7scoE3WrBT&si=ptwofzu3n8MzLSKR ( 8086 execution unit, 8086 EU, general purpose registers 8086, flag register 8086, ALU 8086, 8086 registers explained, AX BX CX DX 8086, SP BP SI DI registers, instruction execution 8086, 8086 architecture, microprocessor tutorial, ECE tutorials, engineering lectures, digital electronics, microprocessor basics, GATE ECE )

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1.2.2 8086 Execution Unit (EU) Explained | Registers, ALU & Flags | Part 2 | EngineeringBytes | NatokHD