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Author Topic: Curiosity killed the cat.  (Read 9258 times)

Offline Vyper

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Curiosity killed the cat.
« on: 25 Nov 2006, 05:20:23 pm »
What is this file for and is it even called on AMD64 systems?

amd64fft8g.cpp

I can't see that the code in anyway links to that file..

Who has a idea??

//Vyper
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Offline Josef W. Segur

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Re: Curiosity killed the cat.
« Reply #1 on: 25 Nov 2006, 05:49:56 pm »
Quote from: Vyper on 25 Nov 2006, 05:20:23 pm
What is this file for and is it even called on AMD64 systems?

amd64fft8g.cpp

I can't see that the code in anyway links to that file..

Who has a idea??

//Vyper

It's part of the Ooura fft coded in SSE, a contribution from a couple of years ago. I think Eric has preserved it in case someone finds it useful.
                                                                       Joe
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BenHer

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Re: Curiosity killed the cat.
« Reply #2 on: 25 Nov 2006, 07:34:19 pm »
Quite right Joe...also it uses some SSE2 opcodes but nothing AMD specific...perhaps Evandro optimized the sequence of opcodes for speed on AMD vs Intel.
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