Yes, the native gecko code handler has a limit of 231 code lines. That is how it is on the real system. Gecko OS can exceed this limit by storing the codes in another section of memory. Take a look at this thread for tips on using Gecko OS with Dolphin: http://forums.dolphin-emu.org/showthread.php?tid=22286
You could also try the Dolphin gecko code engine. It is less compatible but does allow a limitless amount of codes to be used. It can be enabled by deleting the codehandler.bin from somewhere under the Dolphin install directory.
You could also try the Dolphin gecko code engine. It is less compatible but does allow a limitless amount of codes to be used. It can be enabled by deleting the codehandler.bin from somewhere under the Dolphin install directory.