Table of Contents

• Contents
• 1 Introduction to Protected Mode
  • 1.1 A Brief Introduction to Protected Mode
  • 1.2 The Benefits of Using Protected Mode
• 2 Addressing in Real Mode
• 3 Registers in the 80386
• 4 The Real Mode Vector Table
• 5 Hardware Interrupts
• 6 Keyboard and the A20 Line
• 7 Segment Selectors and Descriptors
  • 7.1 Segment Selectors
  • 7.2 Tables Required in Protected Mode
  • 7.3 Descriptors
• 8 Protected Mode Privileges
  • 8.1 Data Access
• 9 How Multitasking Works
• 10 Exceptions on the 80386 Processor
• 11 Memory Management Unit (MMU)
• 12 Virtual 8086 (V86/VM86) Mode
• 13 Interrupt Handling in Protected Mode
• 14 Working in Protected Mode
• 15 Protected Mode Tutorial
• 16 About This Document
• 17 Index