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<h3 class="chapter">80386 Dependent Features</h3>
<p>The i386 version <code>as</code> supports both the original Intel 386
architecture in both 16 and 32-bit mode as well as AMD x86-64 architecture
extending the Intel architecture to 64-bits.
<ul class="menu">
<li><a accesskey="1" href="i386-Options.html#i386-Options">i386-Options</a>: Options
<li><a accesskey="2" href="i386-Syntax.html#i386-Syntax">i386-Syntax</a>: AT&T Syntax versus Intel Syntax
<li><a accesskey="3" href="i386-Mnemonics.html#i386-Mnemonics">i386-Mnemonics</a>: Instruction Naming
<li><a accesskey="4" href="i386-Regs.html#i386-Regs">i386-Regs</a>: Register Naming
<li><a accesskey="5" href="i386-Prefixes.html#i386-Prefixes">i386-Prefixes</a>: Instruction Prefixes
<li><a accesskey="6" href="i386-Memory.html#i386-Memory">i386-Memory</a>: Memory References
<li><a accesskey="7" href="i386-Jumps.html#i386-Jumps">i386-Jumps</a>: Handling of Jump Instructions
<li><a accesskey="8" href="i386-Float.html#i386-Float">i386-Float</a>: Floating Point
<li><a accesskey="9" href="i386-SIMD.html#i386-SIMD">i386-SIMD</a>: Intel's MMX and AMD's 3DNow! SIMD Operations
<li><a href="i386-16bit.html#i386-16bit">i386-16bit</a>: Writing 16-bit Code
<li><a href="i386-Arch.html#i386-Arch">i386-Arch</a>: Specifying an x86 CPU architecture
<li><a href="i386-Bugs.html#i386-Bugs">i386-Bugs</a>: AT&T Syntax bugs
<li><a href="i386-Notes.html#i386-Notes">i386-Notes</a>: Notes
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