Talk:AltiVec

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The conjunction "AltiVec is one of the most powerful SIMD systems in a desktop CPU. It is roughly comparable to SSE2" seem rather odd considering SSE2 is succeeded by SSE3. The entire collection of SIMD entries is in severe need of comparison and clarification. There is a major lack of examples of where it is useful or even needed.

Compiler intrinsics[edit]

The intrinsics link goes to an X11 (X Window System) page. It should probably point to intrinsic function instead. A disambiguation page is probably needed.

VMX128 in Cell?[edit]

The articel states that the VMX128 extension is used in the Cell processor. AFAIK the Cell PPE only contains the normal VMX instruction set, so I deleted this reference. —The preceding unsigned comment was added by 80.138.28.134 (talk) 18:21, 10 March 2007 (UTC).[reply]

no the cell has a PPC G5+ core which includes the entire VMX 128 SIMD. the main core isn't used as a CPU but the VMX128 can be used on the PS3, btw all G5's and cell's have a 128bit SIMD Markthemac (talk) 01:50, 9 June 2008 (UTC)[reply]

That is wrong. Cell does _not_ have a "G5+ core", whatever that means the PPE is quite different from PowerPC 970, and it does not have VMX128, but the regular VMX unit (similar to PowerPC 970, 7400 (not 7450 and later e600 cores), POWER6 and PA6T). You are confusing VMX128 with the regular VMX unit that is 128 bit, but only has 32 registers. VMX128 has 128 registers, and it's only used in Xenon in the Xbox 360 (as far as anyone knows). -- Henriok (talk) 11:06, 9 June 2008 (UTC)[reply]

VMX 2 and VMX 3 not verifiable[edit]

I can't find any evidence of anything called VMX 2 or VMX 3. The Power ISA v3.0B (implemented by POWER9) doesn't even contain the text "VMX" at all. - Torpcoms (talk) 08:35, 23 December 2017 (UTC)[reply]

I've removed the headings Torpcoms (talk) 05:55, 26 December 2017 (UTC)[reply]

Current status?[edit]

What's the current status of Altivec? Is it still being included in new CPUs? Is it dead? dying? surviving? growing? What's its market share? — Preceding unsigned comment added by Sayitclearly (talk • contribs) 11:33, 18 January 2019 (UTC)[reply]