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--- Bráulio Oliveira <brauliobo@×××××.com> wrote: |
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> thank you for you comments... could you please |
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> explain me more about what is |
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> ISA? |
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Well, in this context, ISA means Instruction Set |
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Architecture |
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(http://en.wikipedia.org/wiki/Instruction_set). The |
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ISA defines all the instructions that a CPU needs to |
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have to be part of that architecture. Of course, the |
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insructions defined by the ISA are not the only |
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instructions that a CPU can understand, it can also |
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have extensions, like the MMX, SSE or 3DNOW. |
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Now, i386 and even i686 ISA do not include this |
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extensions, so they must be explicitly activated in |
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case you own a CPU that implements them. However, the |
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amd64 ISA has includes those extentions so they are |
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activated by default. |
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HTH :) |
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|
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