Simple .net core implementation of Z80 CPU emulator, ULA chip and .Z80 file format reader. UI is implemented using cross-platform Avalonia library.

• Runs both under windows and linux
• Can load and play z80 v1 and v2 format apps
• Processor and ULA emulation not coupled with UI
• Clock cycles are emulated, not affected by real time - supports single-frame stepping
• Instruction timing according to specs
• Passes zexdoc and zexall tests
• Custom tests set covering most of instructions
• Capable of running at 1K FPS
• Contains reader of zx spectrum floating point format

• Ubuntu version doesn't react on keydown events
• Tape sound input is not supported, sound output supported only on win32
• No joystick support
• AF register undocumented bits 3 and 5 behavior is not completely implemented
• Non-maskable interrupts are not supported
• Output tv signal is done line-by-line instead of pixel-by-pixel, so some game effects look invalid
• Contended memory emulation is not implemented
• R register increment is simplified and based only on instruction size