[Coco] [OFF] Hitachi MB-6890 information needed

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Tue Apr 22 13:58:53 EDT 2014


So are you saying the 6309 extra features is a EASTER EGG?



On Tue, Apr 22, 2014 at 1:55 PM, Gene Heskett <gheskett at wdtv.com> wrote:

> On Tuesday 22 April 2014 13:49:13 Retro Canada did opine:
>
> > and maybe this machine was the reason for Hitachi to design the 6309
> > without motorola approval
>
> Correction, the contract with moto was to make a workalike clone in cmos,
> but hitachi never saw a moto chip mask.  They were much more advanced in
> cmos than moto was, made the workalike, but had so much empty space in the
> microcode table that their folks had lots of fun adding stuff.  But their
> clone contract with moto precluded it being promoted as better, only a
> clone in cmos.  And that it why to this day, hitachi will not even give a
> reply comment to any questions about its improved abilities.
>
> > On Apr 22, 2014, at 10:02 AM, Bill Pierce <ooogalapasooo at aol.com> wrote:
> >
> >
> > Daniel,
> > I "googled" "hitachi mb-6890" and found all kinds of articles. One of
> > which was the manual page already linked. Another was a forum where
> > someone was saying they had a bunch of disks for it and were wondering
> > how to read them. Also you can google "hitachi peach" as that seems to
> > be the "pet" name of the machine. I also read that many people wondered
> > if hitachi was actually using a 6309 instead of a 6809 as the machine
> > seemed faster than a 6809 and had much broader capabilities (especially
> > graphics) than the average 6809 machine. Tha could explain why they
> > never broadened their distribution of the machine... Motorola probably
> > wouldn't have liked it :-) This machine may be a candidate for a
> > NitrOS-9 port...
> >
> Breaking the warranty seals and taking a look would answer that question.
> >
> > Bill Pierce
> > "Today is a good day... I woke up" - Ritchie Havens
> >
> >
> > My Music from the Tandy/Radio Shack Color Computer 2 & 3
> > https://sites.google.com/site/dabarnstudio/
> > Co-Webmaster of The TRS-80 Color Computer Archive
> > http://www.colorcomputerarchive.com/
> > Co-Contributor, Co-Editor for CocoPedia
> > http://www.cocopedia.com/wiki/index.php/Main_Page
> > E-Mail: ooogalapasooo at aol.com
> >
> >
> >
> >
> > -----Original Message-----
> > From: Daniel Campos <daniel.campus at gmail.com>
> > To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> > Sent: Tue, Apr 22, 2014 9:29 am
> > Subject: Re: [Coco] [OFF] Hitachi MB-6890 information needed
> >
> >
> > WOW! Thanks!
> >
> > Daniel
> >
> > 2014-04-22 10:06 GMT-03:00 Benoit Bleau <benbleau at gmail.com>:
> > > Daniel,
> > > I found that this site has the manuals for the MB-6890
> > > http://www.1000bit.it/scheda.asp?id=980
> > >
> > > Benoit.
> > >
> > >
> > > On Tue, Apr 22, 2014 at 8:00 AM, Daniel Campos
> > > <daniel.campus at gmail.com
> > >
> > >> wrote:
> > >>
> > >> Hello,
> > >>
> > >> I just recently acquired a Hitachi MB-6890, a japanese machine that
> > >> used
> > >
> > > a
> > >
> > >> 6809 processor and was sold on Australia too.
> > >> I really want to know if someone here on this list have any
> > >> information about this machine? Perhaps some obscure repository with
> > >> disk images? :-)
> > >>
> > >> Daniel
> > >>
>
>
> Cheers, Gene
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
> US V Castleman, SCOTUS, Mar 2014 is grounds for Impeaching SCOTUS
>
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>



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