Micro64 1.00.2011.09.28 Build 591 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 1.00.2011.09.28 Build 591 Changelog:
- Made half-cycle VIC2 emulation as default (for testing)
- Change CIA behavior default settings from new 6526A to old 6526

Download: Micro64 1.00.2011.09.28 Build 591
Source: Here