Matlab code in nios processor

hi. i have made a fuzzy system in matlab. i have converted that into a c code using the real time tool box of matlab. i want to import this code and run a NIOS processor, can i do it. i tried to create a blank project in NIOS IDE and then add the files to the directory and change the make file. but i faced error. can any one tell me the procedure to import a C code to the nios processor