Micro64 v1.00.2011.11.21 Build 632 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 v1.00.2011.11.21 Build 632 Changelog:
- Optimized and fixed some bugs in the non-single-pixel-clock-exact VIC emulation
- Added Alt+X hotkey for to toggle between non-single-pixel-clock-exact VIC emulation and single-pixel-clock-exact VIC emulation

Download: Micro64 v1.00.2011.11.21 Build 632
Source: Here