[Coco] Color Computer 3 Easter Eggs

[Boisy G. Pitre]

On Sep 15, 2005, at 1:40 PM, Arthur Flexser wrote:


> I can add one tidbit to the interesting stuff that is there.  I had  
> access to a
> preliminary version of the CoCo 3 ROM code, and the 3 mugateers  
> picture and the
> code to bring it up on ctl-alt-reset weren't in that, even though  
> the other
> Easter Eggs brought up by CLS were.
>

That IS interesting.  Can you tell us how you got a preliminary  
copy?  Was it through someone else or through Tandy?  I presume you  
got it because of concerns about compatibility with ADOS?


> In the same section of code, there is also a little-known  
> (undocumented?)
> feature that reverses the PMODE 4 artifact colors if you press  
> reset and (I
> think) F4.  Only visible on a composite monitor or TV. This was  
> needed for some
> games developed for the CoCo 1/2 that booted up with a solid orange  
> or blue
> screen randomly, and you had to repeatedly press reset until the  
> color was the
> one the instructions called for in order for the game to display  
> its colors as
> intended.  On the CoCo 3, you could accomplish this reversal with  
> the F4-reset
> feature.
>

It's F1, and it is actually documented in the "Introducing Your Color  
Computer 3" mini manual that came with all CoCo 3s.


> Art
>
>
> On Thu, 15 Sep 2005, (tim lindner) wrote:
>
>
>
>> There is a new article about the Color Computer 3 easter egg over  
>> on the
>> CoCo Wiki.
>>
>> http://www.coco25.com/wiki/index.php/CoCo3_Easter_Egg
>>
>> It has some new and interesting information. :)
>>
>> -- 
>> tim lindner
>> tlindner at ix.netcom.com                                        Bright
>>
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>>
>>
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