Goals include:
* To recover emulator code into a working state (using SDL2 as I cannot
use the Windows library)
* To allow memory management in emulator to not mirror the intricacies
of the calculator version (eg. aSystemStack, aVRAMBuffer, etc)
* To recover actual printf-style error messages on the calculator
* To use the standard library and avoid random reimplementations of
functions
* And other code cleanups that are only possible with CGDoom-specific
header files, instead of the mix in platform.h and os.h
* Use sh-elf-gcc (as used on Planète Casio)
* Link with libfxcg -DFXCG_MINI_COMPAT
* Disable LTO as it caused problems (hopefully could be reenabled later)
Lephenixnoir