What's New:
General
- Added some SDL2 functions to autoselect the best video format when switch to full screen
- Fixed some export ROM data (thanks to Neville)
- Fixed a stupid bug creating pixel buffer
- CPU
*M68000
-- Fixed opcodes divu and sbcd (thanks to Neville)
SG-1000
- Added HOLD button
Sega Master System
- Fixed 'Pause' button, now works
Mega System 1 HW
- Fixed RAM byte write (fixes '64th Street - A detective story' protection)