[Coco] CP/M OS-9 is back

[Kip Koon]

Hi Luis!
WOW!  CP/M running on the Coco 3!  I can hardly believe it, but seeing is
believing.  You did it!  I have always wanted to play with CP/M before I
ever had a Coco, but the hardware was just too expensive back then.  Now I
can play with a CP/M Emulator on the Coco 3!  I have only have a 6809 Coco 3
so my setup will be a little slower.  Anyone have a Speedup kit handy, or do
I need to whip up one of those too.  :)  I love this stuff!  Keep up the
fantastic work Luis!  I'll be looking forward to your CP/M Emulator software
package release.  I for one will be glad to see it run on my system.  Take
care my friend.
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Luis Antoniosi (CoCoDemus)
Sent: Wednesday, March 26, 2014 9:04 AM
To: CoCoList for Color Computer Enthusiasts
Subject: [Coco] CP/M OS-9 is back

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

--
Coco mailing list
Coco at maltedmedia.com
http://five.pairlist.net/mailman/listinfo/coco