Tons and tons of internal core changes were made to make the app way better than before, and work on more platforms than before. Snes9x for Mac is coded in C++, with three assembler CPU emulation cores on the i386 Linux and Windows ports. Snes9x for macOS is the result of well over three years worth of part-time hacking, coding, recoding, debugging, divorce, etc. It basically allows you to play most games designed for the SNES and Super Famicom Nintendo game systems on your Mac or Workstation which includes some real gems that were only ever released in Japan. Snes9x for Mac is a portable, freeware Super Nintendo Entertainment System (SNES) emulator.
