Emulator GS/AR cheats help

I have been trying to get codes for gameshark and action reply (more so gameshark codes) to work. 1 line codes for the most part always work, but when you have a 2 or more lines for code how do you get it to work? I have tried entering both on the same cheat line, and have put 1st line as one cheat, and the 2nd line of the cheat as another. Neither of these have worked. So if anyone knows, please share. This is applying to SNSEsoid, N64oid and FPSE. Also if it makes a difference using Sony Ericsson Xperia Play.