Z64K Beta (2016/04/18) is released. Pixel exact emulation of the Commodore 64, VIC 20 and Atari 2600 written entirely in Java. The emulators should run on any platform with an updated java runtime environment installed.

Z64K Beta (2016/04/18) Changelog:
18 April - C64 Beta

Improved disk change emulation. Drive initializes correctly after disk change

17 April - C64 Beta

Fixed multiple drive support when using less than 4 drives. Single drive connected functions correctly again. Note: I've temporarily removed the drive menu from thetop menu. Click on the drive image to load a disk via diskviewer .

16 April - C64 Beta

Multiple drive support - Can select up to 4 drives via the new device settings. note: snapshots only restore and save device 8. I will include snapshot support for the other drives in the next release.
Cartridges resets with a soft reset. Hard reset will clear cartridge memory as well.
Improved NTSC emulation. Right border closes at correct cycle but side border still not opening correctly. Will do more research and fix in a future version.

15 April - C64 Beta

NTSC support - hot switch between PAL and NTSC via machine settings. I have only done minimal testing of NTSC and it uses the same colors as PAL for now. I have included it as proof of concept at this stage but it seems stable. I'm aware of the right border closing 8 pixels late and will fix by next release. Passes VICE phi1timing test. NTSC mode fixes Apollo 18 glitches. I will do more thorough testing and cleanup of code once I include all other features noted in my previous message. WARNING - attempting to load a PAL saved snapshot in NTSC mode will freeze the emulation if it was saved at a raster line greater than 263. I will add checks to prevent crashing in a future release. The safe way to load snapshots you're not sure about is to load them in PAL mode and switch to NTSC once the snapshot is running.


Download: Z64K Beta (2016/04/18)
Source:Here