I am using a Megafunction arithmetic circuit in a Nios® II custom instruction, but the output is 0.

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I am using a Megafunction arithmetic circuit in a Nios® II custom instruction, but the output is 0.

Nios II Platform Designer

Category: Nios® II
Tools: Quartus® Prime / Quartus® II (Qsys)
device:-

Custom instructions must add one cycle of circuit latency.

Enable Output Latency to 1 and clken in the configuration wizard when creating the Megafunction.
Also set Clock cycles to 1 when creating custom instructions in Qsys' Component Editor.

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