Rounds data stored on stack

[GigaExcalibur]

(Directly paraphrased from Contro's investigation)

Adept, Astra, and other round adding skills presume that the number of rounds in the stack is stored in sp + 38, but making any edits to the function BattleGenerateRoundsHits or the proc loop internals will change this to a different value and as such prevent the skills from adding more rounds to combat.

While you can technically alter the skill code so that it references the correct location on the stack for the recompiled function, a more ideal solution would be to use a fixed free byte in RAM to store the number of rounds instead of on the stack. TMGC, the hack that discovered this issue and Contro helped diagnose, uses $030017c4. But anything works, and I'd sooner call this an enhancement than a bug.

Discussion of the issue can be found here, although it requires access to Retina's server: https://discord.com/channels/826258937992183878/964931538380816454/1198210117791907878