Z64K (2019/06/15) 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:
15 June
Update of character base address should be applied immediately (VDC register 28, confirmed with VDC split test program). Re-enabled Character Vertical Size(VDC register 23). VDC 101 100% supported now. :)
Improved latching of VDC char base address. Almost there... Artifacts between logo and scroller of VDC101 no longer appear. Still need to fix smooth x scrolling for logo and remove artifacts above logo.
14 June
Fixed a bug with character vertical size. VDC101 logo imageshows correctly in demo linked in next dot point.
Fixed a bug with VDC register 6. Still not perfect yet but a huge improvement running VDC101
Resetting c128 also resets d030 test bit.

Download: Z64 (2019/06/15)
Source:Here