[Coco] 6309

[Arthur Flexser]

BTW, what happens if you're in emulation (non-native) mode and a
6309-specific instruction is encountered.  Is it executed, error-trapped,
or what?

Art

On Mon, Mar 27, 2017 at 10:54 AM, L. Curtis Boyle <curtisboyle at sasktel.net>
wrote:

> Just to clarify - you see around a 10% speed increase just by turning
> native mode on. You can see a much bigger increase for code written
> specifically for the new registers, new instructions, block memory moves,
> etc. (like the 6309 version of NitrOS-9).
>
> L. Curtis Boyle
> curtisboyle at sasktel.net
>
>
>
> > On Mar 26, 2017, at 11:06 PM, Dave Philipsen <dave at davebiz.com> wrote:
> >
> > The HD63C09E is a microprocessor made by Hitachi that is pin-compatible
> with the MC68B09E from Motorola (which is what your CoCo originally comes
> with).  It is basically 100% compatible (with some pretty unremarkable
> exceptions) with the 6809 but it also has a 'native mode' that can be
> entered where it has improved performance.  The native mode also adds some
> more registers and instructions.  Generally, the 6309 runs somewhere around
> 10% faster than the 6809 and, if you take advantage of some of its
> additional instructions it may even perform better than that.
> >
> > There is a re-write of the OS9 operating system called NitrOS9 that
> supports the native mode of the 6309 and gives you some performance
> improvement although there is a version of NitrOS9 for the plain vanilla
> 6809 too.  Given the fact that neither the 6809 nor the 6309 are being
> actively produced anymore, a person may want to obtain a few just in case
> he blows one up or something happens.  You should have enough of them to
> last you through the rest of your lifetime or the expectancy that you will
> be involved as a hobbyist with the CoCo or 6809/6309!
> >
> > Dave
> >
> >
> > On 3/26/2017 11:50 PM, Steve C. wrote:
> >> For those of us not maintaining the previous emails, what is the 6309,
> why
> >> do we want one or three of 'em, how much will they be if you reach 100,
> and
> >> do they come with sockets? Oh, and before I hit send, are they
> compatible
> >> with everything 6809? Oh, yes, and most importantly... dang I hit send.
> >>
> >> On Sun, Mar 26, 2017 at 8:31 PM, camillus gmail <
> camillus.b.58 at gmail.com>
> >> wrote:
> >>
> >>> Hi all,
> >>>
> >>> As of this moment 3/26/2017 10:30 PM we have 74 count.
> >>> 26 to go and knock off a dollar/piece....LOL
> >>>
> >>>
> >>> cb
> >>>
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> >>> Coco at maltedmedia.com
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> >>>
> >
> >
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> >
>
>
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