Z64K (2019/06/03) 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:
3 June
Improved Atari 2600MOS6532 emulation
Added Atari 26001K and 2K bank switching cartridge detection.
Fixed some TIA HMOVE behaviour. Mega bitmapDemo displays correctly again.

Download: Z64 (2019/06/03)
Source:Here