CGA Graphics Hacks
The cluster focuses on early IBM PC graphics standards, particularly CGA display modes, color limitations, resolution hacks like 1024-color modes, and comparisons to EGA, VGA, Hercules cards, and text modes.
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Man, it doesn't even cover CGA displays (200x160,16 color)!
There's a "mode" if you will, on CGA cards, that involves something similar - best explained here:http://8088mph.blogspot.com/2015/04/cga-in-1024-colors-new-m...If this hasn't already been featured on HN, I'd be surprised...
16 colors at 640x480 resolution! VGA graphics are the future!
Reminds me of the 1024 color CGA hack https://int10h.org/blog/2015/04/cga-in-1024-colors-new-mode-...
are you referring to the IBM PC monochrome console screen? or common terminals from that time?
The pixels were very obvious at 320x200 on most late 80s CRTs with RGB input! (Standard for PC, very common on Amiga and ST.)
You're right. It was a CGA monitor. Forgot that detail.
I can't believe my eyes. 256 colors on CGA?! HOW?!
It might be nice to replicate the 8 x 8 pixels (on a 640 x 200 screen) of the CGA 80 x 25 characters text mode.
The hercules card had a "80 × 25 text mode with 9 × 14 pixel font (effective resolution of 720 × 350, MDA-compatible)" (wikipedia), but the graphics mode was 720 x 348.It always blew my mind that you'd buy a new videocard, and plug the big CRT monitor in it, and it would switch between different resolutions. Precisely because the holes and pixels don't line up, they supported a huge range of resolutions and it didn't look as smeared as on LCDs.I think the mask in t