The core has already executed some quite large pieces of original code in hardware, including the Microsoft Altair 4K Basic.
Interrupt response has been simulated and tested in real hardware.
The project includes a small SoC system built around the CPU core that can be useful as an usage example or as the starting point for a real application.
Besides, thanks to Moti Litochevski the project is now available in both Verilog and VHDL versions.
Compatibility to the original Intel 8080 has not yet been achieved at 100% -- the CY flag undocumented behavior for some logic instructions is slightly incompatible. This is an issue that can't be fixed without a lot of testing with original 8080 chips, or with very accurate simulators.
Please note that the documented
behavior of the CPU is 100% compatible to the original; it's only the undocumented behavior of the original silicon that has not yet been fully replicated -- only almost.
We have set up some demos
to showcase the core.
The development progress can be tracked in the development log