npc timers / defeated trainers

[3:58 AM] entrpntr: can you explain exactly where defeated trainers throws things off between saves?
[4:01 AM] entrpntr: rather, is it in the overworld; doesn't wait until lcd is turned off or whatever
[4:03 AM] entrpntr: wondering if the 3 extra sprites you pass from the Bug Catcher save have anything at all to do with why things get thrown off
[4:03 AM] entrpntr: vs the Lass save
[4:08 AM] Dabomstew: so overworld loop on an "even" frame does
- map script
- npc advancement

map script contains CheckMapTrainers or something similarly named which checks trainers
a predef EngageTrainer is called for every trainer that isn't defeated
AFTER all those checks are over, npc advancement starts
the extra predef EngageTrainer definitely takes enough time to advance rdiv an extra time (with bankswitch etc)
in npc advancement Random is called for any npc that just reached their timer
[4:09 AM] Dabomstew: that's the summary of the trainer situation
[4:10 AM] entrpntr: basically everything comes down to rdiv then
[4:10 AM] Dabomstew: yeah
[4:15 AM] entrpntr: and IGT overflowing anywhere in the overworld won't have the effect it does with lcd off
[4:26 AM] Dabomstew: yeah
[4:26 AM] Dabomstew: well, it might
[4:26 AM] Dabomstew: but it's only 24 cycles
[4:26 AM] Dabomstew: so less likely to shift rdiv
[4:27 AM] Dabomstew: and it only matters on the exact frame that a timer expires
[4:27 AM] Dabomstew: if IGT overflows on the same frame a timer expires, there is a small chance (I think about 1/5, its 48 cycles not 24, oops) that rdiv overflows by 1 and ruins everything
[4:28 AM] Dabomstew: err 48/256 so 3/16
[4:28 AM] entrpntr: ok so the extra sprites would make some sense then
[4:28 AM] Dabomstew: yeah the more sprites you pass the more likely it is