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x86 Assembly Language Reference Manual     Oracle Solaris 11.1 Information Library
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1.  Overview of the Oracle Solaris x86 Assembler

2.  Oracle Solaris x86 Assembly Language Syntax

3.  Instruction Set Mapping

A.  Using the Assembler Command Line



The Oracle Solaris x86 Assembly Language Reference Manual documents the syntax of the Oracle Solaris x86 assembly language. This manual is provided to help experienced programmers understand the assembly language output of Oracle Solaris compilers. This manual is neither an introductory book about assembly language programming nor a reference manual for the x86 architecture.

Note - This Oracle Solaris release supports systems that use the SPARC and x86 families of processor architectures. The supported systems appear in the Oracle Solaris OS: Hardware Compatibility Lists. This document cites any implementation differences between the platform types.

In this document, these x86 related terms mean the following:

For supported systems, see the Oracle Solaris OS: Hardware Compatibility Lists.

Who Should Use This Book

This manual is intended for experienced x86 assembly language programmers who are familiar with the x86 architecture.

Before You Read This Book

You should have a thorough knowledge of assembly language programming in general and be familiar with the x86 architecture in specific. You should be familiar with the ELF object file format. This manual assumes that you have the following documentation available for reference:

How This Book Is Organized

Chapter 1, Overview of the Oracle Solaris x86 Assembler provides an overview of the x86 functionality supported by the Oracle Solaris x86 assembler.

Chapter 2, Oracle Solaris x86 Assembly Language Syntax documents the syntax of the Solaris x86 assembly language.

Chapter 3, Instruction Set Mapping maps Oracle Solaris x86 assembly language instruction mnemonics to the native x86 instruction set.

Access to Oracle Support

Oracle customers have access to electronic support through My Oracle Support. For information, visit or visit if you are hearing impaired.

Typographic Conventions

The following table describes the typographic conventions that are used in this book.

Table P-1 Typographic Conventions

The names of commands, files, and directories, and onscreen computer output
Edit your .login file.

Use ls -a to list all files.

machine_name% you have mail.

What you type, contrasted with onscreen computer output
machine_name% su


Placeholder: replace with a real name or value
The command to remove a file is rm filename.
Book titles, new terms, and terms to be emphasized
Read Chapter 6 in the User's Guide.

A cache is a copy that is stored locally.

Do not save the file.

Note: Some emphasized items appear bold online.

Shell Prompts in Command Examples

The following table shows UNIX system prompts and superuser prompts for shells that are included in the Oracle Solaris OS. In command examples, the shell prompt indicates whether the command should be executed by a regular user or a user with privileges.

Table P-2 Shell Prompts

Bash shell, Korn shell, and Bourne shell
Bash shell, Korn shell, and Bourne shell for superuser
C shell
C shell for superuser