An 8080 assembler with attached MS-DOS emulator. It builds with Code Warrior on Macintosh 68K and PPC systems. It's author died a number of years ago, and hs brother has released this code for general use, free of charge. He feels, and I agree, that it was too good an effort to waste it by letting it lay on a shelf. It was then severly hacked into what it is today.
Source code is available for part of the system.
The utilities have been enhanced, and the source for them is not present. The source is present for the operating system itself, and a Z80 emulator. I don't believe that the included emulator source is th Z280 emulatior. Even though it appears that the Z280 emulator source is not persent, the binary should include the Z280 emulator. I am still attempting to get the rest of the source code.