divider ip core problem!

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Hi everybody!
I want to implement in vhdl a divider. So i want to use an ip core if i want to have a fast divider.
The divider can used for the calcul of interpolator. The algorithm for interpolator linear is : f= ya + lamda x ( yb -ya) and lamda= (x-xa)/(x-xb).
When i write a code vhdl ( vhdl structural) for adder, multiplier and substractor i compile it and i simulate it and evrything is ok.
So When i implement an ip core divider and simulate it i have at divider output
zero.
You can show in the attachement , the picture for the architecture, picture divider simulation and picture of the interpolation simulation.

I hope that i clarify my problem.
I will be grateful for your help.
Thank you.
Charko

PS: Sorry for my bad english.
 

Attachments

  • divider simulation.jpg
    divider simulation.jpg
    172.1 KB · Views: 187
  • interpolator architecture.jpg
    interpolator architecture.jpg
    152.5 KB · Views: 175
  • interpolator simulation.jpg
    interpolator simulation.jpg
    211.2 KB · Views: 176

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