Geode instruction set

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Revision as of 23:57, 17 April 2007 by Yuhong (talk | contribs) (Geode GX instruction set moved to Geode instruction set: Processor changed to Geode LX)
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see Hardware specification and AMD's Geode LX data book

General

Generally speaking, the Geode processor supports the i686 (Pentium Pro) instruction set, though it is not a complete Pentium Pro clone since many other features new to Pentium Pro, such as PAE and MTRR, are not supported. MMX and 3DNow! Enhanced instructions are also supported, (and indicated by the correct CPUID bits), so applications which check those bits should use MMX as usual. Additionally, there are some special AMD Geode instructions, but they are not used by the GNU compiler.

Specific Instruction Sets

  • i686 (Pentium Pro)
  • MMX
  • AMD 3DNow! Enhanced
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