OpCode names, where are they come from?

[doityourself]

function names include the opcode names :P

[guizmows]

do you know an IDA pluggin that can compare Mac bin and Win Bin? I can't do it with patchDiff.

[DrakeFish]

And I said I want the opcode names (also the cheat opcodes which have no functions), not the function names.
I don't want the random opcode values, just their original names.

You can't just dump the names from a game release build. I think everyone in this thread clearly explained why/how/where/when are the opcodes names usually leaked. The EMU guys don't just dump the names every patches, they update their list with the new values or use a name they choose if the opcode's name wasn't leaked (yet). Also keep in mind that since Cataclysm, the opcodes values change every patch.

EDIT:

(also the cheat opcodes which have no functions)

So you're basically asking to be able to dump opcodes (and their names) that aren't even implemented in the client?