For Emerald, the initial seed was always 0. Gen 4 is now of course the 8 digits 0 thru F.
The first four are the combination of Date and Time, and the last four are for Delay, which is the time from soft reset/start until entering the game.
RNG Reporter's [seed to Time] gives all the possible date/time for the seed, there's a way they are coded.
The initial seed stays the same all through the game, except for when starting a new game in which the first seed determines the ID/SID (and date ...and time [in pokesav]). The seed then reseeds to another one, which really doesn't matter since it is the start of the game. The initial seed is what the current seed (which is related to the frame) which makes the PIDs appear. The initial seed is what the game starts with. Frame changes the current seed.
I've RNGd on Emulators and the initial seed is visible in DeSmuME's ARM9 memory in a specific location for each game, and it does transfigure to a "nonrelated" seed that can't be decoded into date time and delay, but is probably related to the initial seed. The Frame (which determines what PIDs appear) is related to each seed, and the PIDs can appear on many seeds at different frames.
Your post is spot on :grog:
