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Altera_Forum
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13 years ago

FP Custom Instructions - exp() won't get any faster

Hi everybody. I'm working on a design using Nios II/f that heavily relies on floating point math. In Qsys I addedd Floating Point Hardware and I connected it to the Custom Instruction Master of ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

I have a same trouble with divide in Floating Point Hardware. But i don't known why,too. :cry:

Hardware divide is enabled both in the Floating Point Hardware module and in the Nios II/f. And i sure divide avalible in Floating Point Hardware because i compare total logic elements in 2 cases (turn on/off dividion Floating Point Hardware):

Turn on: 9724 LEs

Turn off: 5041 LEs

i sure Floating Point Hardware is used because it work with multiply float.

Who is resolved it? Can you help me?