Kludge to prevent busy-waiting while no frames are generating
Kludge to prevent busy-waiting while no frames are generating

fr500/mgba,bentley/mgba,zerofalcon/mgba,jeremyherbert/mgba,sergiobenrocha2/mgba,iracigt/mgba,Touched/mgba,askotx/mgba,iracigt/mgba,Iniquitatis/mgba,libretro/mgba,cassos/mgba,Iniquitatis/mgba,Anty-Lemon/mgba,zerofalcon/mgba,libretro/mgba,libretro/mgba,askotx/mgba,fr500/mgba,libretro/mgba,bentley/mgba,MerryMage/mgba,jeremyherbert/mgba,AdmiralCurtiss/mgba,cassos/mgba,Touched/mgba,matthewbauer/mgba,fr500/mgba,matthewbauer/mgba,nattthebear/mgba,iracigt/mgba,zerofalcon/mgba,Touched/mgba,Iniquitatis/mgba,sergiobenrocha2/mgba,Anty-Lemon/mgba,iracigt/mgba,jeremyherbert/mgba,AdmiralCurtiss/mgba,mgba-emu/mgba,jeremyherbert/mgba,fr500/mgba,askotx/mgba,Iniquitatis/mgba,nattthebear/mgba,sergiobenrocha2/mgba,AdmiralCurtiss/mgba,sergiobenrocha2/mgba,Anty-Lemon/mgba,Anty-Lemon/mgba,sergiobenrocha2/mgba,mgba-emu/mgba,MerryMage/mgba,libretro/mgba,askotx/mgba,MerryMage/mgba,cassos/mgba,mgba-emu/mgba,mgba-emu/mgba