mGBA 0.5.1 - 模擬器

上次大版本號出來之後修了一堆bug

https://mgba.io/

Bugfixes:
Core: Fix importing save games as read-only
FFmpeg: Fix encoding AAC
GB: Fix invalid STOP behavior on Game Boy Color
GB: Initialize audio properly
GB: Properly clear KEY1 bit 0 when switching speeds
GB: Properly unload save files when unloading a ROM
GB, GBA: Fix emulator hardlocking when halting with IRQs off
GB MBC: Fix MBC7 when size is incorrectly specified
GB MBC: Fix RTC access when no save file is loaded
GB SIO: Don’t auto-clock external shift clock
GB Video: Setting LYC=LY during mode 2 should trigger an IRQ
GB Video: Fix video frames getting missed when LCDC is off
GB Video: Clear screen when LCDC is off
GBA Cheats: Fix holding onto pointers that may get invalidated
GBA Cheats: Fix key-activated CodeBreaker cheats
GBA Cheats: Fix uninitialized memory getting freed when saving
GBA Hardware: Improve Game Boy Player rumble behavior
GBA Memory: Fix several unused I/O register read values
GBA Savedata: Fix loading savestates with 512Mb Flash saves
LR35902: Fix events running with the wrong cycle active
Qt: Fix “close” button on Overrides view
Qt: Fix saving overrides
Qt: Fix directory set unloading when replacing the ROM
Qt: Fix patch loading
Qt: Fix crash when saving an override if a game isn’t loaded
Qt: Fix showing default display driver as OpenGL (force 1.x)
SDL: Attach rumble in SDL frontend
Util: Fix PNG identification on files too small to be a PNG

Misc:
All: Only update version info if needed
All: Split out install locations for Libretro and OpenEmu
FFmpeg: Encoding cleanup
GB: Reset active region when reloading ROM
GB Memory: Initialize RAM pattern for GBC
GB Video: Improved video timings
Qt: Manage window sizes slightly better
Qt: Remember scale option independent of core dimensions

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