(as.info)i386-Dependent


80386 Dependent Features
========================

   The i386 version `as' 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.

i386-Options: Options
i386-Syntax: AT&T Syntax versus Intel Syntax
i386-Mnemonics: Instruction Naming
i386-Regs: Register Naming
i386-Prefixes: Instruction Prefixes
i386-Memory: Memory References
i386-Jumps: Handling of Jump Instructions
i386-Float: Floating Point
i386-SIMD: Intel's MMX and AMD's 3DNow! SIMD Operations
i386-16bit: Writing 16-bit Code
i386-Arch: Specifying an x86 CPU architecture
i386-Bugs: AT&T Syntax bugs
i386-Notes: Notes

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