Vector unit?

Discussion in 'iOS Programming' started by ThaBunny, Aug 2, 2008.

  1. ThaBunny macrumors newbie

    Aug 2, 2008
    Does the ARM chip inside the iphone have a vector unit, and if so, is there any documentation on it?

    According to engadget, the chip inside the iphone is the ARM1176JZF, and according to ARM, there's a variant called the ARM1176JZF-S which includes a vector coprocessor. Which one is inside the iphone?

    Given that there's no hardware transform and lighting on the GPU (it's just a rasteriser AFAIK), such a thing would be very useful.
  2. firewood macrumors 604

    Jul 29, 2003
    Silicon Valley
    I think the inTua/BeatMaker website claims that the CPU does have a vector unit, and they code for it.
  3. ThaBunny thread starter macrumors newbie

    Aug 2, 2008
    Don't suppose you have a link for that? I looked on their site and found a reference for some kind of cross-platform vector math library, but I couldn't find anything specifically about the iphone supporting vector operations natively.

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