print result of nios ii custum instruction on model sim?
I add sqrt as custom instructio to nios ii and generate built system in sopc and all things ok. I write simple code in nios2 ide and simulate it with modelsim but not any result show . print NaN or 0.0000!!! How can i solve this problem? quartus 9.0 and modelsim 6.4a and niosii9 ide used. Thank you