Two Pass Assembler Explained with Example Part 2 System Programming

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http://youtube.com/watch?v=3gEyq9wDGeg

In this lecture, we provide a detailed explanation of the Two-Pass Assembler with a step-by-step example, covering the working of both Pass 1 and Pass 2 along with the required data structures and opcode tables. • 🔹 What You’ll Learn: • ✅ Deep Dive into Two-Pass Assembler: • 🔸 Understanding Pass 1 Pass 2 Execution in detail. • ✅ Data Structures Used in a Two-Pass Assembler: • 🔸 Symbol Table (SYMTAB) – Stores labels and memory addresses. • 🔸 Literal Table (LITTAB) – Tracks constants used in the program. • 🔸 Opcode Table (OPTAB) – Maps mnemonics to machine codes. • ✅ Types of Assembly Statements Their Formats: • 🔸 Mnemonic Opcode Table (MOT) – Storing opcode mnemonics. • 🔸 Assembly Directive Statements – Handling assembler directives. • 🔸 Declarative Statements – Understanding storage allocation. • ✅ Pass 1 Execution: • 🔸 Processing Assembly Instructions – Creating SYMTAB and handling directives. • 🔸 Generating Intermediate Code for Pass 2. • ✅ Pass 2 Execution: • 🔸 Translating Assembly Code into Machine Code using tables. • 🔸 Handling Address Resolution Literal Processing. • ✅ Step-by-Step Example: • 🔸 Full execution walkthrough of Pass 1 Pass 2 for an assembly program. • 📌 This video is perfect for students learning System Programming, Assemblers, and Compiler Design. • After watching this video please do refer following videos for more detail explanation • 1. Two pass assembler basic: • Two Pass Assembler | System Programmi... • 2. Single pass assembler: • Single Pass Assembler | System Progra... • 📌 Like, Share Subscribe for More Programming Tutorials! 🚀

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