[Coco] Multi-Processor 6809 Computer System
Nick Marentes
nickma at optusnet.com.au
Thu May 2 15:51:03 EDT 2013
> Realistically, IMHO, the only incarnation we'll ever see of a Coco
running
> at upwards of 20MHz is going to be in an FPGA... forget trying to
replace
> the CPU on a Coco motherboard if you want a significant speed boost.
I wasn't thinking of 20Mhz+
The CoCo has survived on 1.78Mhz for over 20 years. Even a jump to 4Mhz
would be significant, 8 would be super.
Of course, the bottleneck will always be the GIME in such an upgrade to
an existing CoCo3.
Like I said, even a small increase helps, nothing too adventurous. The
idea is that such a mod would be low cost and affordable by all. It may
be able to use a smaller and lower cost FPGA or even a microcontroller.
Not much point creating a Super CoCo that is priced beyond most peoples
expectation of a small hobby retro computer.
Nick
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