A new version of the Commodore 64 emulator Hoxs64 is now available. Here is what is new:
1) Fixed memory bug in FDI disk decompression.

2) Fixed bug in RTI opcode. Flexible demo part 3 now works.

3) The disk head data line is held high when the motor is off. Startrek game now loads.

4) Fixed CIA PB6-7 bug introduced in v1.0.5.0

5) Reduced sound volumes to avoid wave cropping.
You can get it from here.