I am a member of the Glenside Color Computer Club.
We would gladly welcome a presentation of a processor upgrade for the Tandy Color·Computer 3.
The Motorola MC6809·is the·original microprocessor. ·The Hitachi HD6309 is a replacement microprocessor that can run MC6809 code, but it can also run additional op-codes that improve the overall performance of the computer if code is compiled to take advantage of the new-opcodes.
We are sponsoring a·two-day event entitled, “The 19th Annual "Last" Chicago CoCoFEST!”, held at the Holiday Inn in Elgin, Illinois on May 15-16, 2010.· You can see how the Tandy Color Computer (the “CoCo”) built in·the 1980’s is still being used today, and see all the products that are still being developed for it.· Admission is $10, or you can set up your own booth at the festival (which includes an admission pass) for as low as $45.00.· I would expect about 55-75 people to attend; some travel from as far away as Florida and California.· We have about 190 members worldwide.·
Several vendors come to the CoCoFEST to sell their products that support the CoCo.· New products have been developed that allow for saving CoCo programs to thumb drives (SD cards) and PC-based servers.· More new products are expected to be announced this year.·
The CoCoFEST is not just about the CoCo. What makes the CoCoFEST interesting is the people you will meet.· We share ideas, display new and old products, and help one another.
The Tandy (TRS-80) Color Computer is ~30 years old. ·The technology may not be the greatest, compared to what’s out today, but it’s simple and useful.
Links that may be of interest to you:
Glenside Color Computer Club:· http://glensideccc.com/
YouTube 2008 CoCoFEST: http://www.youtube.com/watch?v=ZB5IyO06kR8
YouTube 2009 CoCoFEST:http://www.youtube.com/watch?v=2WhG-ZNELZI&feature=related
Thank you for·the work you are doing to preserve·the MC6809 microprocessor.· This may be the most fun you have in 8-bits.· Perhaps you can add a new level of acceleration similar to·what the HD6309 did.· You could allow an MC6809 mode, that can be switched to an HD6309 mode, that can then be switched to a·new turbo·mode, or some such thing.· Check out the·NitrOS9 operating system for the MC6809 and HD6309 microprocessor.· Perhaps you could emulate the video circuit as well.
·-John Mark Mobley