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Altera_Forum
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10 years ago

Trigonometric functions with FPU

Hello, I'm trying to reduce the latency of my arithmetic operations. For that purpose i The CUSTOM FPU INSTRUCTION to my Nios. I've enabled HW and DIV at NIOS2-F. Using this Custom Instructi...
Altera_Forum's avatar
Altera_Forum
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10 years ago

Thank you dsl & mikedsouze for your answer.

@dsl:

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you ought to be able to compile the trig function library routines to use the custom instructions internally.

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How can I do that ?

@mikedsouze :

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reason is that i have a feeling that the compiler is unable to map the new operations to the newlib. you could try to recompile newlib, rebuild bsp folder.

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I have a newlib generated with the BSP but it's empty. Is there any configuration special to do in eclipse to recompile newlib ?

Sorry for wasting your time.

Best regards