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StefanoC's avatar
StefanoC
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

float128 floating point IP operations

Hi all, I noticed that among the parameters of the IP library one can achieve float arithmetic with float32 and float64, but that's it, 64 seems the maximum number of bits possible. Is there anothe...
ShengN_altera's avatar
ShengN_altera
Icon for Super Contributor rankSuper Contributor
3 years ago

Hi,


Quartus will not automatically infer Altera/Intel IP as long as the IP is not being used. The IP core module will not be called out if IP is not used. Generally, only those logic, LUT, register, primitive, RAM or etc will be inferred based on the custom design.


Thanks,

Best Regards,

Sheng

p/s: If any answer from the community or Intel Support are helpful, please feel free to give best answer or rate 4/5 survey.


StefanoC's avatar
StefanoC
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Thanks, I am getting the picture.. sorry just one last clarification. In the function above you mentioned it can be synthesized either with "my custom code or use Intel IP", by custom code you mean an additional library I would develop or just those few lines would overload the operators +, - *, sqrt to work with floating point? If so I would guess they would consume a large number of LUTs? However it's a good news.

Would the same approach work with the following without the ALTERA floating point library?

signal trial1, trial2 : float64

begin

trial2 <= sqrt(trial2)