Disassemble executable, find "EQU" or "EQUN" string, find array storing pointer to this string, voila - this array stores pointers to all opcode strings in opcode number order.Sorry for the question but what is your method of locating Opcodes on LucaSystem? On PC you can just look through the executable in hex but how do you personally go about it on Switch?
After this array there is additional array with subset of custom commands that in opcode order is after the first array.