Nios 2 custom instruction

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Nios 2 custom instruction

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Hello

I am learning nios 2 processor and nios 2 custom instruction. I have add custom component in qsys and then for analysis and synthesis I have to add hdl files. I have created two normal verilog files for qsys custom component and when I was doing analysis and synthesis I got this error.

"No modules found when analyzing null".

Can you tell me how to solve it.

I am giving you a link which I am using for my example.

https://www.youtube.com/watch?v=zfthoafi7ly

Thanks

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