* nes long hold pause/set to toggle speedup
* refactor nes common emu loop; need to fix busyTime
* move odroid_system_tick into common loop, fix cpumon
* nes common_emu_loop
* pce common_emu_loop
* sms common_emu_loop
* fix some warnings
* setup pause/set macros; remove speedup based on long-pressing pause/set
* Update readme. Initial Controls section commit
* linting
* mute while macro save-stating
This was originally written by Thomas Roth <code@stacksmashing.net> to
make it possible to support more emulators than what fits into memory at
the same time (commit c13aa09b).
Instead of generating a monolithic binary, the different emulators are
stored in flash and loaded into ram right before they are launched.
This is the basis for adding more emulators e.g. smsplusgx.