[Coco] colors

[Bill Pierce]

William, sorry, misread the email. But it IS still 16 colors at once in HW 80 col :-)

When I was writing that scontrol routine that's in the pic, I had 8 different overlays on the screen with different color schems in each. Then with the scontrol running, I could change the fore and back colors in each window to what I wanted. It was cool looking. I should've taken a screenshot of it.


Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens
 

My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
Co-Contributor, Co-Editor for CocoPedia
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E-Mail: ooogalapasooo at aol.com




-----Original Message-----
From: William Astle <lost at l-w.ca>
To: coco <coco at maltedmedia.com>
Sent: Wed, Apr 2, 2014 1:01 am
Subject: Re: [Coco] colors


I didn't say it couldn't.  I was saying you can only use 8 different foreground 
colours and you can only use 8 different background colours. I didn't say that 
both set of 8 had to be the same.

-------- Original message --------
From: Bill Pierce <ooogalapasooo at aol.com> 
Date: 2014-04-01  22:52  (GMT-07:00) 
To: coco at maltedmedia.com 
Subject: Re: [Coco] colors 
 

William, Sorry, you're wrong. The 80 col hardware text screen can show 16 colors 
at once.
Here is a screenshot showing 16 colors on an 80 col screen.
Notice the letters are in one color set and the color boxes are another. This is 
on Vcc but it looks exatly the same on my Coco 3 CM-8 sitting beside my PC 
monitor.

https://dl.dropboxusercontent.com/u/23059963/Pictures/Coco%20Pics/Color%20Palettes.jpg

My last email in this thread explains this.


Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens


My Music from the Tandy/Radio Shack Color Computer 2 & 3
https://sites.google.com/site/dabarnstudio/
Co-Webmaster of The TRS-80 Color Computer Archive
http://www.colorcomputerarchive.com/
Co-Contributor, Co-Editor for CocoPedia
http://www.cocopedia.com/wiki/index.php/Main_Page
E-Mail: ooogalapasooo at aol.com




-----Original Message-----
From: William Astle <lost at l-w.ca>
To: coco <coco at maltedmedia.com>
Sent: Tue, Apr 1, 2014 10:37 pm
Subject: Re: [Coco] colors


The absolute only possible way to choose between 16 colours for 
foreground and background is to be operating in a 16 colour graphics 
mode. This is a fact of the hardware. In a hardware text mode, you 
cannot have more than 8 different foreground colours on screen at any 
given time. The same goes for background colours. (The trick for 
displaying all 64 colours at once is not useful here because it uses 
100% of the CPU.)

If register 2 is changing the foreground colour, that means that either 
the register numbers do not refer to the hardware register numbers in 
the context you are in or you are actually in a graphics mode. This, 
too, is a fact of the hardware.




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