60fps Video on a CGA? - The GlyphBlaster

The GlyphBlaster in action - is that a cat in text mode??

 There's a certain genre of retro-hardware hack that everyone recognizes is technically cheating, but has a certain audaciousness to it that merits respect regardless. I hope that this one falls into that category!

A few years ago, I was impressed by TheRasteri's PiPU project - basically, a Raspberry Pi-powered mapper for the NES. Of course, it can play DOOM:

The Raspberry Pi Pico and its RP2040 microcontroller have reinvigorated the retro-computing hobby quite a bit, enabling such devices as the PicoGUS, PicoMEM, PicoIDE, and most recently, the OneROM.  It was the latter device that got me thinking.

I recently used a OneROM to replace the font ROM on my CGA card, and subsequently I was able to replace IBM's classic 8x8 font with a custom one. Here's Frogblock by Polyducks:

The "Frogblock" font loaded onto a OneROM replacing the CGA's font ROM

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