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Altera_Forum
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11 years ago

sqrtf custom instruction gives sometimes absolutely wrong results

I use Quartus 13.1.0.182 web edition with a Cyclone III FPGA The project is compiled with the Floating point custom instruction 2.0 from Qsys. My code calculates the square root and some time...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
11 years ago

Neither of those expressions will help the bug, just give extra precision.

And I should also have suggested: sqrt((0.5+sin+0.5)*(0.5-sin-0.5)).