Compukit UK101 Simulation v1.3.0 is released. Compukit UK101 Simulation is a simulation of Compukit UK101 hobby computer from the late 1970s/early 1980s. The program is written entirely in Java and should therefore run easily on most systems.

The simulation is reasonably complete and includes the following hardware elements:
- 6502 CPU
- RAM and ROM store
- Keyboard input
- VDU output
- Cassette tape storage

Compukit UK101 Simulation v1.3.0 Changelog:
- More improvements to host CPU usage
- Bug fixes for some page-0 and indexed addressing modes
- Support emulated CPU speeds up to 4MHz
- MONUK01 monitor included in package
- Allow CPU speed to be changed when running
- '@' key works correctly with CEGMON monitor
- Additional games: "Labyrinth", "Real-Time Star Trek"
- Add TapePlay utility to play tapes to the speaker
- Generate audio waveforms to match the real hardware
- Improve appearance in some look-and-feels (especially Mac)
- Enable patching of ROMs when loaded

Download: Compukit UK101 Simulation v1.3.0
Source: Here