Seems a new version of the GBA, DS, DSi and potentially one day 3ds emulator known as no$gba dropped.
For those unfamiliar it is an emulator that started out just doing the GBA but over the years. Its debugger (useful for homebrew authors, ROM hackers, commercial developers, cheat makers and more besides) is one of the best going and its accuracy as an emulator is also right up there.
The hardware documentation it is associated with is also the main reference for most people doing the above...
No$gba 25 Apr 2020 - version 3.01
For those unfamiliar it is an emulator that started out just doing the GBA but over the years. Its debugger (useful for homebrew authors, ROM hackers, commercial developers, cheat makers and more besides) is one of the best going and its accuracy as an emulator is also right up there.
The hardware documentation it is associated with is also the main reference for most people doing the above...
No$gba 25 Apr 2020 - version 3.01