Cyclone II and NIOS frustrations

Hi,

sorry to post a question, i'm still a beginner and you all seem to master my problem. I try to make the nios read something. I just knew here that we symply affect to a variable the result of IORD. But how the base argument (obviously the adress) can be configurated to read from a specific location (a vhdl code file for eg).

Just to be sur the nios red the message i want to write another one with the IOWR but i know how to do all this so thank you to help me with the first part.

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