[Coco] CoCo 128-column text mode

[L. Curtis Boyle]

No, it’s a hardware mode. It can be used in the graphics, too. It enables a 256 byte wide screen (irregardless of mode).

L. Curtis Boyle
curtisboyle at sasktel.net



> On Jan 7, 2015, at 12:32 PM, Arthur Flexser <flexser at fiu.edu> wrote:
> 
> 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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