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#1 2011-01-31 07:27:57

Game
Member
Registered: 2010-07-05
Posts: 39

Is there any use of AVX instructions

So,Is there any use of AVX instructions for DeSmuMe ?

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#2 2011-01-31 07:58:13

zeromus
Radical Ninja
Registered: 2009-01-05
Posts: 6,207

Re: Is there any use of AVX instructions

no, there is no support for instructions released last month on processors which are fast enough not to need them anyway to get good desmume performance.

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#3 2011-01-31 10:31:28

Game
Member
Registered: 2010-07-05
Posts: 39

Re: Is there any use of AVX instructions

I mean in very,very distant future will be they be usfull?

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#4 2011-01-31 18:53:56

zeromus
Radical Ninja
Registered: 2009-01-05
Posts: 6,207

Re: Is there any use of AVX instructions

no. in the very, very distant future they won't be needed.

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#5 2011-02-01 09:28:43

Game
Member
Registered: 2010-07-05
Posts: 39

Re: Is there any use of AVX instructions

Becouse CPUs will be very fast big_smile

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#6 2011-02-03 22:47:06

Nintendo Maniac 64
Member
From: Northeast Ohio, USA
Registered: 2010-02-24
Posts: 92

Re: Is there any use of AVX instructions

And DeSmuME may be more optimized.

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#7 2011-02-05 14:00:32

Manivo
Awesome Possum
Registered: 2009-02-15
Posts: 655

Re: Is there any use of AVX instructions

And you'll need an airplane to hunt pigs.

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#8 2011-02-05 16:06:41

Game
Member
Registered: 2010-07-05
Posts: 39

Re: Is there any use of AVX instructions

Manivo wrote:

And you'll need an airplane to hunt pigs.

You need it now also,trust me.

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#9 2011-02-05 16:38:34

DaMan
Member
Registered: 2011-01-01
Posts: 59

Re: Is there any use of AVX instructions

ICC seems to do a descent job of using AVX.  Searching the ASM files shows YMM registers being used 591 times with AVX instructions being used 58 times.  Now idea if has any meaningful impact on performance.  SB goes as slow as 2.2GHZ (no overclocking to save the day) with mobile parts likely even lower it might be of some use.

Last edited by DaMan (2011-02-05 16:39:19)

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#10 2011-02-05 18:03:16

zeromus
Radical Ninja
Registered: 2009-01-05
Posts: 6,207

Re: Is there any use of AVX instructions

we havent got ICC successfully compiling desmume in a long time. it is tiresome dealing with intel's trial versions. if only they offered a free version of the windows compiler to open source programmers who toil away every day making their chips useful.

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#11 2011-02-08 04:49:04

Nintendo Maniac 64
Member
From: Northeast Ohio, USA
Registered: 2010-02-24
Posts: 92

Re: Is there any use of AVX instructions

Besides, Intel's compiler/s are known to hinder performance on non-Intel CPUs.

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#12 2011-02-08 10:34:56

DaMan
Member
Registered: 2011-01-01
Posts: 59

Re: Is there any use of AVX instructions

ICC only supports up to SSE3 on non Intel processors though it might work if the Intel checks are patched out.
Even with the crippling ICC is usually faster than MSVC.

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#13 2011-02-23 10:52:18

DaMan
Member
Registered: 2011-01-01
Posts: 59

Re: Is there any use of AVX instructions

Now that SP1 is out if you have a SB CPU Game I can give you an AVX binary to test.

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#14 2011-02-24 11:52:02

Game
Member
Registered: 2010-07-05
Posts: 39

Re: Is there any use of AVX instructions

Don't have it just asking for future purchase.

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