AMD Geode 优化参考
我正在对嵌入式 AMD Geode LX 上的一些机器视觉代码进行一些重大优化。我将重写 Assembly 中计算密集的部分,大量使用 x86 MMX 指令。
基本的 MMX 指令集有很多参考资料,但我正在寻找针对 Geode LX 进行优化的具体指南。
AMD 网站有一些 AMD64 和 Athlon 优化指南,但我没有找到任何专门关于 Geode 的信息。
我正在寻找有关 Geode 特定事物的信息,例如流水线、不同指令的速度以及其他速度关键信息。有关 Geode 如何工作的信息以及改进代码的技巧将非常有帮助。
我正在使用 AMD Geode LX 800。
[编辑]这个网站正是我正在寻找的内容,只不过它只关注 AMD Athlon 和 Opteron 处理器: http://www.agner.org/optimize/
I am working on doing some significant optimization of some machine vision code on an embedded AMD Geode LX. I am going as far as to rewrite the computationally intense portions in Assembly, making heavy use of the x86 MMX instructions.
The basic MMX instruction set has many references, but I am looking for specific guides for optimizing for the Geode LX.
The AMD website has a few AMD64 and Athlon optimization guides, but I have had no luck finding any information on the Geode specifically.
I am looking for information on such Geode specific things as pipelining, speed of different instructions, and other speed critical information. Information just on how the Geode works, as well as tips for improving code, would be very helpful.
I am working with an AMD Geode LX 800.
[edit] This website is exactly what I'm looking, except it only focuses on AMD Athlon and Opteron processors:
http://www.agner.org/optimize/
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这有帮助吗?
http://support.amd.com/us/Embedded_TechDocs/gx1_ds.pdf
[编辑]或此:
http://support.amd.com/us/Embedded_TechDocs/33234H_LX_databook .pdf
Does this help?
http://support.amd.com/us/Embedded_TechDocs/gx1_ds.pdf
[edit] or this:
http://support.amd.com/us/Embedded_TechDocs/33234H_LX_databook.pdf