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TI Home » TI E2E Community » Support Forums » Digital Signal Processors (DSP) » C6000 Single Core DSP » C64x Single Core DSP Forum » how to do 64-bit word norm operation?
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how to do 64-bit word norm operation?

  • Xuedong
    Posted by Xuedong
    on Sep 02 2008 13:16 PM
    Prodigy150 points

    Anyone knows how to do 64-bit word norm operation?

    From TMS320C6000 programmer's guide, I can find

    uint _norm(int src2) for 32-bit word

    uint _lnorm(long src2) for 40-bit word

    intrinsics. But there is no norm intrinsic is defined for 64-bit word.

    Thanks.

    c6000 C6412 C6416
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  • TimHarron
    Posted by TimHarron
    on Sep 03 2008 14:52 PM
    Genius16720 points

    The _lnorm and _norm intrinsics are the only two I know of for all C6000 parts. See pages 169-173 of the C6000 Optimizing Compiler User Guide (spru187o).

    http://focus.ti.com/lit/ug/spru187o/spru187o.pdf

    -Tim

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    c6000 intrinsics
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  • Xuedong
    Posted by Xuedong
    on Sep 03 2008 16:13 PM
    Prodigy150 points

    Thank you! I got it.

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