Implement settings

[Gericom]

• Accuracy/performance

  • Whether the jit will be detached as soon as enough code has been patched -> also means hicode won't work
  • Accuracy level of the jit -> Not all possible fixes are applied at lower levels to prevent overhead. This works fine for most games
  • Whether bg vram will be aborted or not -> when not aborted byte writes are ignored instead of being duplicated, but performance for games that frequently do cpu writes to vram (e.g. software rendered 3d and video playback) would be better
  • Write buffer enable for vram -> can delay writes slightly, but can improve performance, together with disabling the abort
  • Wram icache
  • Wram dcache (not sure if this will work well), maybe a separate setting for wram write buffer as well?
  • Main memory cache
  • Whether dma0 hdma may use a hardware dma channel if possible

• Display settings

  • Center/mask
  • Display on top/bottom
  • Screen darkening
  • Border settings

• Input settings (key mapping, both for gba buttons and emulator actions)

[Gericom]

Could also have a sound disable option

[Gericom]

Eeprom little/big endian save

[Gericom]

For DSi: 67MHz/134MHz arm9 speed

[Dartz150]

Could also have a sound disable option

It would be nice to have this separated per-channel, similar to mGBA.

• PSG Channel 1
• PSG Channel 2
• PSG Channel 3
• PSG Channel 4
• FIFO Channel A
• FIFO Channel B

[Dartz150]

Force RTC enable (useful for some romhacks)