Green Notice (Development Thread) Testing needed for a small CPU optimization

**Axxer** · 10-07-2012, 10:04 AM **#11**

(10-07-2012, 06:07 AM)NaturalViolence Wrote:
Quote:and on top of that use a build optimized with newer SSE instruction sets than you could possibly get speed similar

..........do I really need to go over why this isn't true again?

They can provide a very small speed up in specific cases (barely noticeable). Not enough to talk about, but hey it's worth a shot.

AFAIK Dolphin only goes up to SSE2 (which is why it's required to run it). Does it support SSE4.2?

**neobrain** · 10-07-2012, 10:09 AM **#12**

Yes, and it's enabled by default.

**Axxer** · 10-07-2012, 10:12 AM **#13**

(10-07-2012, 10:09 AM)neobrain Wrote: Yes, and it's enabled by default.

??? Awesome! Explanation accepted.

**DefenderX** · (This post was last modified: 10-07-2012, 06:32 PM by DefenderX.)

Sounds nice. In combination with other ICC instructions... Big Grin

**NaturalViolence** · 10-08-2012, 03:32 PM **#15**

ICC instructions?

**neobrain** · (This post was last modified: 10-08-2012, 04:06 PM by neobrain.)

I think he's talking about the IMS instruction, which stands for Icc Magic Speedup. Unfortunately it doesn't work quite well and just maps to a NOP on current-gen CPUs.

**NaturalViolence** · 10-09-2012, 03:03 AM **#17**

Quote:I think he's talking about the IMS instruction, which stands for Icc Magic Speedup. Unfortunately it doesn't work quite well and just maps to a NOP on current-gen CPUs.

[Image: ISeeWhatYouDidThereBlackWithTextSS.png]