I wrote this emulator in lua so I could work on my next project that requires it. As far as I know there isn't any other (at least usable) Z80 Emulator written in lua.
This is meant to be a base for other emulator projects that use a Z80 processor.

With little tweaking, it IS compatible with computercraft.

Please visit it's github page here
https://github.com/Xenthera/LuaZ80


For those of you wondering, here it is passing all ZEXDOC tests.