Z64K Beta (2018/08/21) 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 Changelog:
Some fixes to pulse output when TEST bit is set inSID Waveform generator.

Download: Z64 Beta (2018/08/21)
Source:Here