[Coco] colors
Bill Pierce
ooogalapasooo at aol.com
Wed Apr 2 00:52:17 EDT 2014
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
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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: 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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