GameBoy Online (2011/12/21) is released. GameBoy Online is a Game Boy and GameBoy Color emulator written in Javascript. It strives to be efficient and try to have a perfect compatibility. Currently the execution speed is not optimal even on browsers. For example on Chrome, which is nevertheless deemed to run Javascript faster on a PC running Windows 7 64-bit version with a double heart 2 CPUs at 2.2 GHz, games run at normal speed but almost skipping some frames.

The sound production is still experimental and rather poor quality. The video portion is by HTML5 or by creating images with BMP string URI. State backups are implemented using the object window.localStorage and are serialized / deserialized JSON. Ditto for backup SRAM.



GameBoy Online Changelog:
- AddiAltered a buffering heuristic slightly
- Adding more advanced buffer underrun handling.
- Fixed some jitter in the mid-scanline rendering of prehistorik man.
- Clean up.
- Clean up and regression fix.
- Optimized the resampler.
- Regression fix.
- Removing unnecessary line.
- Iteration clockdown is done through an integer based number that gets recomputed off a float now, instead of being float directly.
- Fixed a hang case in calculateHALTPeriod that was a regression from the code cleanup earlier.
- minor APU optimizations
- XAudioJS update.
- Minor optimization.
- Made midscanline rendering slightly more accurate.
- Cleaned up the halt opcode handling routines.

Play Online: GameBoy Online (2011/12/21)
Source: Here