The x86 ISA

Content locked

The catalog is public. Reading this content requires approved access.

The x86 ISA

B.1 LC-3 Features and Corresponding x86 Features

B.1.1 Instruction Set

B.1.1.1 Data Types

B.1.1.2 Opcodes

B.1.1.3 Two Address vs. Three Address

B.1.1.4 Memory Operands

B.1.2 Memory

B.1.3 Internal State

B.1.3.1 Application-Visible Registers

B.1.3.2 System Registers

B.2 The Format and Specification of x86 Instructions

B.2.1 Prefix

B.2.2 Opcode

B.2.3 ModR/M Byte

B.2.4 SIB Byte

B.2.5 Displacement

B.2.6 Immediate

B.3 An Example

Source