Neocities.org

Oop oop uwa uwa

I'm aware of the non-square pixel issue. The thing is most people use DOSBox nowadays and I don't think it emulates non-square pixels. On the other hand, I could try to enable Mode X (which is 320x240 and has square pixels,) but that would also require to tweak the refresh rate of the monitor, something I cannot do because I don't have the hardware available for testing.

My bad: DOSBox can indeed correct the aspect ratio, I had no idea.

There's nothing wrong with 320x200 Mode Y anyway. I do think you should do an article on how to change the resolution of Mode Y for people who want to change to a higher resolution like 400x512 for, say, a static screen.

I could do that but without genuine hardware it's hard to ensure the code will run properly (I’m having SVGA flashbacks.) I picked Mode Y over X because it allows 4 full pages of video memory rather than “3 & 1/2,” requires fewer tweaks, and is guaranteed to work on any card supporting Mode 13. It’s all around easier. I think I missed the point of your 1st comment; you wanted the screenshots to be aspect-corrected?

Oh, you just don't have a DOS computer of any kind to test on. I guess I do have an actual DOS computer, but it's a Toshiba Satellite 2060cds laptop. If you take screenshots in DOSBox, even with aspect=true, you'll still get screenshots of the original resolution. In this case, I recommend giving DOS screenshot img tags their own class, and using CSS to ensure that the image is 120% taller than it is wide.

Also, CGA's 320x200 4-colour mode is only like that on RGBI, EGA, and VGA monitors. On composite, the 320x200 4-colour mode functioned more like a 160x200 16-colour mode due to NTSC artefacting and composite not separating the colour signal from the brightness signal.