Initialize the emulator in retro_load_game() instead of in its thread or
retro_run(). If init fails, an error is returned to the frontend.
Add more data to save states, V3 introduced.
Initialize modem at init to have a fixed size scheduler list at runtime
Fixed init race conditions when using auto load state.
Don't serialize sh4 scheduler ids. Don't depend on their value for ser/deser.
Flyinghead