Emulator Cheats

I noticed that when I started to look around on the forum, sorry for posting at the wrong page, but thanks for your help.

Recently I've been trying to learn how to find pointers and such in CE. My friend asked me to make a trainer but I've a problem. Here's a screenshot that should explain it all, I want to know how to find out the pointer for this strange "Set Direction Flag"? I've been searching for it but ...