The 'S' prefix on the other han, just seems to return the specified cheat value without comparing anything. The mechanism isn't foolproof, because potentially multiple banks might have he same value at the same cheat location, albeit unlikely. It is essentially a system to ensure that the value is overridden only when the right PRG bank is in place. I was also curious on what was intended by the compare value. 'S' denotes a cheat that is a read-substitute-style cheat(such as with Game Genie cheats), and a 'C' denotes that the cheat has a compare value. The format is as follows(text in brackets represents optional parameters):Īddress(hex):Value(hex):DescriptionĪ colon(:) near the beginning of the line is used to disable the cheat. Each line represents a one-byte memory patch. The files are in a simple plain-text format. By default cheat files (.cht) are stored in the 'cheats' subdirectory under the base FCEUX.
