Surprise!
Anyway. I easily found the Moon Jump code by using the one made for the Nintendo 64 version. I opened up a memory editor and typed in the address for the N64 version. Then I looked at what the values were for standing still.
"C080" since Gateway can't search for HEX. I went here:
http://www.binaryhexconverter.com/hex-to-decimal-converter
and had it converted. I popped in "C080" and it converted that to, "49280" then did a search for 49280. Then I did a back flip and recored the values, I got "C00C" and once again went to the website above and popped in the hex.
It converted it to "49164" then I searched for that and it found it.
Then I looked at what the N64 version of OOT used for the values to Moon Jump. "40CB" since Gateway flips the bytes it turns it to "CB40."
I will take a look at the USA version of Majora's Mask for the Moon Jump. It seems baffling that Majora's Mask would use Dynamic addresses for Link's jumping....