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TDA2: Is Vector to scalar switching possible?

Shruti Joshi
Intellectual 400 points

Part Number: TDA2

Hi,

Is it possible to switch from vector to scalar in VCOP kernel C? I want to make decisions based on the individual element value, will it be possible?  

Regards,

Shruti

  • 0
    TI__Guru 56820 points

    Hi Shruti,

        Can you provide some example of what you want to do? VCOP only works with vector instructions but if we know what you are trying to do we may provide some alternatives.

    Regards,

    Anshu

  • 0 in reply to Anshu Jain
    Intellectual 400 points

    Hi Anshu,

    I have a use case wherein, depending on the value of the element I have to set a flag. This flag can range from 0 to 7. Depending on the flag's value, I have to perform some operations.

    In normal C this is easy, the flag can be set for a single element, and normal if-else conditions take care of the rest.

    But, when using kernel C, 8 elements are processed at a time, and the flag is also a vector.  So, all the elements of the flag will be in the range of 0 to 7. And for each element the operation should be different. Is there a way to handle this? 

    Regards,

    Shruti Joshi

  • 0 in reply to Shruti Joshi
    TI__Guru 56820 points

    Shruti,

        Can you look into select instruction of VCOP and see it helps?

    Regards,

    Anshu

  • 0 in reply to Anshu Jain
    TI__Guru 56820 points
    Hi Shruti,
    We haven't heard back on this from you. Were you able to make progress? If yes please close this thread. If not then let us know.

    Regards,
    Anshu
  • 0 in reply to Anshu Jain
    Intellectual 400 points
    Hi Anshu,

    We tried to use select instruction, but that does not solve the purpose. So we decided to change the code logic itself. So that we do not have to take such complex decisions.
    Anyways thanks for your help.

    Regards,
    Shruti