[Coco] CP/M OS-9 is back

[Luis Antoniosi (CoCoDemus)]

Hi guys,

I got some time improving mt CP/M emulator as you can see in the video:

https://www.youtube.com/watch?v=FiwmUnLTcjY&feature=youtu.be

It's emulating Microsoft Basic. Couldn't test it extensively but it
seems to be working fine.

I'll be releasing a beta version for you to play with. The emulator is
100% assembly (lwasm) and is 7KB only. Only the i8080 is emulated
although I expect to extend it to z-80 extra instructions later.

It's running on a higher speed than I previous thought. I will release
the assembly code as well and if you want to help to improve the speed
feel free to do it. The main bottleneck is the flag converting between
6809 -> 8080.

Although I created a lookup table to convert it, the 8080 has extra
flags or the flag is not changed on the 6809 equivalent instruction.


-- 
Long live the CoCo