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docs: 1.5.4 changelog, zelda why the fuck

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Michael Scire 2023-05-14 03:15:43 -07:00
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# Changelog
## 1.5.4
+ Experimental new functionality was implemented to prevent crashing when building romfs for certain games with obscene file counts.
+ This includes both Fire Emblem: Engage (~190000 files), and The Legend of Zelda: Tears of the Kingdom (~300000) files.
+ The solution involved adding functionality to ams.mitm/pm to dynamically steal memory from the application (and system) pool as needed when the games have romfs mods.
+ No memory is taken, and there is no cost to this functionality when playing without mods (or with overrides disabled).
+ The Legend of Zelda: Tears of the Kingdom is currently the absolute worst case game, requiring ~48 MB of memory to build a romfs image to play with mods.
+ Right now, the memory is sourced as follows: 32 MB (base ams.mitm heap), 10 MB (stolen from application pool), 8 MB (dynamically stolen from system pool).
+ This is 50 MB, which allows a little overhead in the worst case (prevents crashing due to exhausting the heap for other allocations in ams.mitm).
+ Zelda is remarkably sensitive to memory being stolen from the application pool, tolerating no more than 16 MB on 1.0.0 and 12 MB on 1.1.0. I have chosen to steal 10 MB, to be safe, for now.
+ This may break on a future game update, but I will fix it if and when that happens. There is no perfect solution; the game simply requires too much memory to support mods flawlessly, and I am forced to compromise.
+ As usual, if you encounter a game that exhausts ams.mitm's memory (crashing it) when loading layeredfs mods, please contact `SciresM#0524`.
"I am jinxing myself by saying this, but it's really hard to imagine any game being worse than The Legend of Zelda: Tears of the Kingdom, but if it happens again I will drop everything to fix it as usual".
+ General system stability improvements to enhance the user's experience.
## 1.5.3
+ Support was added for 16.0.3.
+ Atmosphère was updated to use GCC 13/newlib (latest devkitA64/devkitARM releases).