Micro64 1.00.2011.09.30 Build 593 is released. Micro64 is a freeware commodore c64 emulator. Currently micro64 has two different VIC II emulation modes: cycle exact (default, works fine) and half-cycle exact (next-gen, rudimentary implementation – currently damn slow).

Micro64 1.00.2011.09.30 Build 593 Changelog:
- Simplified CIA emulation source code part and interrupt handling source part for more tweaks in the future
- Fixed a small bug in the CIA emulation (missing interrupt cycle delay at setting ICR for a testcase)

Download: Micro64 1.00.2011.09.26 Build 592
Source: Here