Implement MUL
Implement MUL

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