[Coco] CoCo 128-column text mode

Mark Schoenberger phxmark at yahoo.com
Wed Jan 7 14:34:15 EST 2015


I have heard of this mode.  Only 80 characters across are visible.but it scrolls.  It is a documented mode in the GIME.

OS-9 does support this mode and I have tried it out.  Been a long time since I played with it, though.



      From: Arthur Flexser <flexser at fiu.edu>
 To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com> 
 Sent: Wednesday, January 7, 2015 11:32 AM
 Subject: Re: [Coco] CoCo 128-column text mode
   
So, you're saying the characters are seen as normal 80-column width ones,
but the cursor moves beyond the 80th character as the text scrolls leftward
so you can see the additional characters?

Don't recall ever hearing about this mode.  If I've described it correctly,
doesn't sound like a hardware mode at all, just something accomplished
through software.

Art

On Wed, Jan 7, 2015 at 11:27 AM, Allen Huffman <alsplace at pobox.com> wrote:

> Terry Trapp on the Facebook CoCo posted a link to a 1986 newsgroup posting
> by Kevin Darling which laid out what was known about the CoCo 3 hardware.
> One of the things noted in it was something I had completely forgotten
> about -- the 128-column hardware text mode.
>
> I had at least one RS-DOS word processor that used this, and the text
> would scroll at the end of the screen out to 128 characters. Once I moved
> to OS-9, I never used it again and just forgot about it.
>
> Was it ever used on anything else? I forgot what used it -- Simply Better,
> perhaps?
>
>                -- A
>
>
> --
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> Coco at maltedmedia.com
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>

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