Format

D E - X X X X X X   0 0 0 0

XXXXXX = Address

Functionality

It will only be used by games that do not have the Mario 64 keycode,

and just because it doesnt use the Mario 64 keycode,

doesnt mean it needs a DE code either

(I.E. Perfect Dark did not need this code.).

This code type takes the address XXXXXX, and starts running the game from this address.

(Which obviously, is the correct Boot Entry address for the game.)

Example

DE000400 0000

Makes Yoshi's Story start up.

If you look at the Boot Entry address of Yoshi's Story in the ROM, it says 80100400, which the Cheat Device would download, and since that is not the correct address, it would eventually crash the game

(If not, crash it instantly.) The DE code tells the Cheat Device basically that the Boot Entry address is wrong, and this is the correct one.