Sitenotice: 11/29/2018: The wiki is back. It turns out, some anti-virus product on my web server had an issue with the latest version of PHP. My server techs have resolved this issue, and things should be working again. During the investigation, I did restore to a backup from September. There is a chance that any changes done since then were lost, but I do not recall any edits. --OS-9 Al
8/30/2016: Massive re-work is being done on the InfoBox Templates. Read that page to keep up with the plan for that, and adding better keyword tags (categories) to all the pages. --OS-9 Al (talk) 15:28, 31 August 2016 (CDT)
|Looking for CoCo help? If you are trying to do something with your old Color Computer, read this quick reference. Want to contribute to this wiki? Be sure to read this first. This CoCo wiki project was started on October 29, 2004. --OS-9 Al|
This page was last updated on 03/12/2007. Total Pages: 650. Total Files: 936.
Mark McDougall has made considerable progress towards implementing CoCo 1/2 functionality in an FPGA He is active on the Color Computer email list, and has participated in next-generation CoCo discussions there. The CoCo FPGA project is part of Mark's more expansive PACE project for FPGA arcade game emulation. Mark's CoCo emulation can now run Color BASIC, but hardware implementation is incomplete as of 1/23/2007 when he posted this in a message to the mail list:
I'm using John's CPU09 as a basis for my Coco 1, and have started on my own implementation of the 6883 and 6847.... Whilst my own Coco implementation is a fair way off yet, my intention is to release it to the public domain when it's sufficiently complete. Of course, there's the GIME to tackle next for a real work-horse, but it's a start at least.
And this in 1/30/2007:
For those interested, the design emulates the Coco 1, with the 6883/6847 implemented only to the point of being able to display the standard text screen. This requires 3,921 LEs, or 12% of the EP2C35. Of those, 3,064 comprise John Kent's CPU09.
Keith Howell has developed a Polymorph Computer in FPGA which includes emulation of the 6847 Video Display Generator used in the CoCo 1 & 2, and partially implemented in the CoCo 3's GIME. He notes that CoCo compatibility could be added to his system by implementing a 6809 CPU.
Also James Daggett has done some work on implementing the CoCo 3's GIME custom chip in VHDL.