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CocoaMSX 1.2


CocoaMSX is an open source MSX emulator for OS X.


  • Based on blueMSX, one of the most accurate MSX emulators currently available
  • Built-in support for 3 virtual systems, automatic download and installation of over 200 MSX systems
  • Built-in support for cartridge (ROM) files, optional support for diskette (DSK) and cassette (CAS) files
  • Support for pasting text directly into MSX
  • Support for MSX-Music, MSX-Audio, Moonsound, SCC and PSG sound systems
  • Various video effects, such as scanlines and signal noise simulation
  • Snapshots with Finder previews
  • Support for MSX joysticks, joypads and mice
  • Flexible keyboard and input peripheral configuration
  • Screen capture
  • Audio capture
  • Gameplay capture
  • MSX Mouse support
  • Mixing for all six sound channels (PSG, SCC, MSX-Music, MSX-Audio, Moonsound, Keyboard)
  • Full screen support, including enhanced full screen on Lion and higher
  • Automatic updates

System Requirements

  • Intel-based Mac running OS X version 10.6 (Snow Leopard) and higher.


New in 1.2

  • Removed the black side borders from the main emulator window
  • Improved mouse support (press Cmd+Click to disengage mouse mode), as well as new mouse configuration options
  • Option to enable/disable status bar (now off by default)
  • Improved machine selector - now on a separate tab in Preferences. Download, install and uninstall machines automatically. Special thanks to the blueMSX team for providing server hosting
  • Improvements to the keyboard editor, including automatic layout detection and more intelligent key editing
  • Limited gameplay capture and recording
  • Mixer configuration options - control volume and balance of all six channels
  • Ability to paste text into the MSX computer (by simulating keystrokes)
  • Lots of bug fixes






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