Migrate from DC7.25P to DC9.10

Hi, I’m use RCM2110 and DC7.25P. My program can compile succesfully. Now I’m buy DC9.10, if the same program i’m compile to the same handware with DC9.10, getting error : line 1957 : ERROR TCP.LIB : Out of xmem code space, use a larger ROM/RAM. I’m already try TN238 ( increase DATAORG ) but still error.
Can anybody explain to me what I must do ?