Z80# - A .NET 5 Z80 emulator

Z80# is a Z80 emulator written in C# and targeting .NET 5. It was written with the primary purpose of supporting CPC#, an Amstrad CPC464 emulator.

Currently supported:

• Cycle accurate implementation of all documented instructions
• Non-maskable interrupts
• Interrupt mode 1
• The undocumented 0xdd and 0xfd prefixed instructions

Not yet available:

• BUSRQ
• Interrupt modes 0 and 2
• Remaining undocumented instructions/behaviours

Note: The emulator doesn't pass all ZEXDOC tests and won't pass ZEXALL as the undocumented flags haven't been implemented yet. In practice I haven't seen unexpected behaviour when running software on CPC# but eventually I want both ZEXALL and ZEXDOC to pass in full.