[Coco] Color BASIC 1.1 / memory detection

[Arthur Flexser]

That's strange, indeed.  Are you sure of the Color Basic being 1.0?  Try
EXEC 41175, as Curtis suggests, to make sure.

Art

On Tue, Feb 17, 2015 at 7:02 PM, Bill Pierce via Coco <coco at maltedmedia.com>
wrote:

>
> Art, I have an F-board (chicklet keys) that has both CB & ECB 1.0. It was
> one of the 32k boards that was actually 64k. Oddly, it recognizes as 32k of
> ram and not as 16k.
>
>
> Bill Pierce
> "Today is a good day... I woke up" - Ritchie Havens
>
>
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
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> Co-Contributor, Co-Editor for CocoPedia
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>
>
>
>
> -----Original Message-----
> From: Arthur Flexser <flexser at fiu.edu>
> To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
> Sent: Tue, Feb 17, 2015 6:49 pm
> Subject: Re: [Coco] Color BASIC 1.1 / memory detection
>
>
> Are you sure that your COLOR BASIC (not Extended Basic) is version 1.1?
> You cannot readily detect the Color Basic version with Extended Basic
> installed.  If in doubt, pull the Extended Basic chip and see what the
> startup message reports.  (Though I would think an F-board CoCo would
> indeed have Color Basic 1.1, not 1.0.)
>
> Art
>
> On Tue, Feb 17, 2015 at 5:14 PM, jon bird <news at onastick.clara.co.uk>
> wrote:
>
> > Hi,
> >
> > I have just recently resurrected my old Coco 1 (it's a 26-3004A variant)
> > and have been putting it back to an original (working) state (I had been
> > plugging various additional cards & even a Dragon ROM into it at some
> > point).
> >
> > The info I can find on this version of the CoCo was that it was shipped
> > with 16K RAM, Color BASIC. It had an Extended BASIC 1.1 ROM fitted many
> > years ago and as part of my various "upgrades", replaced the 16K RAM
> chips
> > with 4164 DRAMs & also switched over the jumpers.
> >
> > What I am finding though is that having restored the original Color BASIC
> > 1.1 ROM, it is only reporting a 16K memory fit. I'm pretty sure that
> when I
> > had the Dragon ROM fitted, it could access the full 32K (and I'm also
> > fairly sure I had OS9 running on it as well which suggests the full 64K
> is
> > accessible). So this seems to be a feature of the BASIC ROM.
> >
> > I did come across this article from the archive:
> >
> >
> http://coco.maltedmedia.narkive.com/2DM5LvJ2/color-basic-1-0-1-2-differen
> > ces
> >
> > which backs up some other information I found that the original 1.0 ROM
> > did not support >16K memory fit but that the 1.1 ROMs do.
> >
> > Can anyone shed some light on this behaviour?
> >
> > Cheers,
> >
> >
> > Jon.
> >
> > --
> > == jon bird - software engineer
> > == <reply to address _may_ be invalid, real mail below>
> > == <reduce rsi, stop using the shift key>
> > == posted as: news 'at' onastick 'dot' clara.co.uk
> >
> >
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> >
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