Nice. But if I remember correctly, Mode X was a special VGA mode to squeeze a bit more performance (due to planes and full graphics memory addressing), not the "normal" MCGA 320x200x256 (13h)

If you're interested, I also implemented a few effects like lens[0] and Jare's fire[1] along with some other amusements[2]

[0] https://toys.luismedel.com/lens/index.html

[1] https://toys.luismedel.com/fire/index.html

[2] https://github.com/luismedel/js-toys

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bhouston 6 days ago | parent | next [-]

X-Mode is formally:

320x240 (square pixels) with 256 colours

Full details:

https://en.wikipedia.org/wiki/Mode_X

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gneissguise 6 days ago | parent | prev [-]

Thanks for sharing the link! I remember the lense demos, and I remember downloading one or two of them from a BBS that had NSFW pictures rendered in the background.

	▲	wvh 6 days ago \| parent [-]
		That's one way to stimulate memory... I was so into this in the mid-90s. I tried some assembly but I wish I would have been better at the maths part back then.