Can you run a 8086 PC-XT emulation with 640K RAM, 80×25 CGA composite video and a 1.44MB MS-DOS disk on a ESP12E without additional components?

Yes, you can and I did.

The CPU emulator is a port of Mike Chambers FAKE86.
And the composite video is based on the work of Cnlohr and Hrvoje Cavrak”

Link

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