[Coco] OS-9 coco2b lowercase

Retro Canada retrocanada76 at gmail.com
Fri Oct 19 11:24:46 EDT 2012


hmm, here is my pcb:

https://twitter.com/RetroCanada76/status/259148739283931136/photo/1/large

the image is not great i can't read the chip numbers. I'll check later at home.

On Fri, Oct 19, 2012 at 11:10 AM, L. Curtis Boyle
<curtisboyle at sasktel.net> wrote:
> It might be... I seem to recall that the 2B was also the only Coco 2 that used the 4464 (2 chips) vs. the 4164 (8 chips) for the older Coco 2's, and I think that required a small upgrade to BASIC to cover RAM refresh or something like that. So, that might be a good test (assuming only Coco 2B's used the 4464 chips).
>
>
> On Oct 19, 2012, at 9:03 AM, Retro Canada wrote:
>
>> well it has color basic 1.3. Is it a good indicator ?
>>
>> On Fri, Oct 19, 2012 at 10:57 AM, L. Curtis Boyle
>> <curtisboyle at sasktel.net> wrote:
>>> POKE 65314,80 give full green background as well as lowercase (no black border). The print vector in BASIC will normally change this back on you, though, when you return to the OK prompt. If you are running OS-9/NitrOS9, you should be able to patch the VDG driver to keep this mode on at all times as well (somebody did do that way back for OS-9 Level 1, version 2.x, from what I remember).
>>>
>>>
>
>
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