[Coco] Re: Any reason to put a 6309 in a Coco2?

[jdaggett at gate.net]

Gene

I forgot about that. If your software is counting cycles for delays and stuff like that, 
then there will be issues. Especially if you are marking time from an event to trigger 
another. 

james


On 31 Dec 2003 at 12:32, Gene Heskett wrote:

> On Wednesday 31 December 2003 09:51, Torsten Dittel wrote:
> >> The GIME chip is the Coco3 will not support semigraphic modes
> >
> >When I was talking about the "3" I referred to the "6309", not the
> >CoCo3. Sorry for the confusion. I wondered if a 6309 running in
> >6809-mode would be fully compatible to an "original" 6809.
> >
> >Does anyone know for shure if a "6309 Level I" NitrOS9 is planned or
> >even released? Boisy?
> >
> >Regards,
> >Torsten
> 
> AIUI, running in the default powerup 6809 mode, it perfectly emulates
> the 6809 with the exception of doing a prefetch of the next
> instruction if it has something else to do internally, and this does
> increase the speed a few percentage points.  But unless whatever
> you're doing is timed by the cpu instead of the clock, you'll probably
> not be effected in any way you can detect.
> 
> -- 
> Cheers, Gene
> AMD K6-III at 500mhz 320M
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> by Gene Heskett are:
> Copyright 2003 by Maurice Eugene Heskett, all rights reserved.
> 
> 
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