Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Access to the Floating Point Costum Instruction

I Have simply add a floating point custom Instruction (named fpoint) to my nios II processor core under the SOPC Builder with Quartus II 6.1. The generation was successful and now a want access th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

Okay, i understand. I didn´t know, that the custom instruction is already in use. I Think, i have to set up a define-statement or my own macro., but this was a mistake...

Thanx.

Now, i get the following result.

Floatingpoint addition:

with Custom instruction --> 5 times faster

floatingpoint multiplikation:

with custom instruction --> 17 times faster

I think these are realistic values...