[Coco] OS-9 coco2b lowercase

Arthur Flexser flexser at fiu.edu
Sat Oct 20 05:09:34 EDT 2012


I think he was asking if there's a SOFTWARE test for the presence of
true lowercase on a CoCo 2, which might be needed if you didn't want
your software to attempt to throw the CoCo it was running on into true
lowercase mode unless the CoCo had that ability.  (If the CoCo didn't,
the attempt to throw it into true lowercase would result in a bunch of
colorful but undecipherable Semigraphics-6 globs.  Semigraphics-6 was
so useless that nobody missed it when it was replaced by true
lowercase mode on the CoCo 2B and CoCo 3.)

If the presence of Color Basic 1.3 isn't a reliable test, I don't
think one is possible.

Art

On Sat, Oct 20, 2012 at 3:08 AM, chris <cralt at comcast.net> wrote:
> The simplest way to see if you have a lowecase CC2 is to just press 0(zero).
> If it has a slash then it does lowercase.
>
> You could also boot the os9 l1 image from  http://www.nitros9.org/latest/
> for the coco2b with out patching.
>
> Here is a crappy cellphone pic of the coco2b image:
> http://cralt.com/nos9_coco2b.jpg
>
> CB 1.3 IS needed for cc2's with 2 ram chips but it doesn't mean it will have
> lowercase. I have a few CC2's with CB1.3, 16K, no lower case, and no ECB.
> They have the "Radio Shack" name plate.
>
> My 2 lowercase CC2's are both 64K ECB machines with the newer TANDY name
> plate. Both PN 26-3127B
>
>
> -chris
>
>
>
>
>
> On Oct 19, 2012, at 11:14 AM, Boisy G. Pitre wrote:
>
>> I believe it is.  Color BASIC 1.3 was created to accommodate the detection
>> of 64K with the new 4464 DRAM chips.
>>
>> On Oct 19, 2012, at 10:03 AM, Retro Canada <retrocanada76 at gmail.com>
>> 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).
>>>>
>>>>
>>>> On Oct 19, 2012, at 8:35 AM, Sean James wrote:
>>>>
>>>>> Retro Canada <retrocanada76 at ...> writes:
>>>>>
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> Is there any tool or command to activate the lowercase for coco2b ? I
>>>>>> can make a basic09 command, but I don't want to reinvent the wheel.
>>>>>>
>>>>>> Also, is there a way to detect by software a coco2b ?
>>>>>>
>>>>>> Thxs,
>>>>>>
>>>>>> Felipe
>>>>>>
>>>>>
>>>>> Poke 65314,16 works on my Korean CoCo II to turn on lower case letters.
>>>>> As far as detecting the VDP, I don't know.
>>>>>
>>>>>
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