GameBoy Online (2011/12/13)

GameBoy Online (2011/12/13) 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:
- Reordering some code. Inlined the LYC asserts in commonly called places.
- Replacing new Array(...) usage with the standard [] usage.
- minor optimization
- Fixed a DMA timing bug causing double clocking of the CPU core variables under specific cases.
- Removing some unnecessary code from the last update. We do not need to re-iterate the lcd timing control, as the clocking is not enough from the specific cases covered.

Play Online: GameBoy Online (2011/12/13)
Source: Here