[Coco] Re: [Color Computer] 68881/68882 & the CoCo
alxevans at concentric.net
Wed Feb 8 17:26:26 EST 2006
On Feb 8, 2006, at 12:19 PM, Mike Pepe wrote:
> Gene, sounds like you're on my wavelength.
> I'm not sure how practical this is, but the bus interface seems
> straightforward, though completely emulating the 68020 co-processor
> protocol would be difficult-- but probably not necessary.
> I'm just curious to see if it can be done. It may prove to be an
> interesting experiment to see how much faster the FPU is than the math
Quite a number of years ago, there was someone on the listserv who
had claimed to have connected a 68881 to his CoCo. Supposedly there
is an 8-bit mode for it (I guess so that you can attach it to a
60008), and even a simpler mapping mode than the normal 68020 mode.
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