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Is the GB Bridge named after the adapter used with Visoly Flash Advance and Flash2Advance cartridges to play GB and GBC games by translating between GB and GBA bus protocols? www.gameboy-advance.net/flash_card/g...

I mean, I'm naming a mid-step to port games from GB to GBA. I'd even say I'm naming a bridge between the systems. So yes.

So you're creating a whole lot of bespoke new graphics to make this work, right? Because I can't see how you could just press a button to create some of these visual enhancements.

Yes? This is not meant for regular people, it's just a project that enables romhackers and artists to port games. And even then I explicitly stated how difficult this is to pull off...

GB Bridge is basically a GBC with a different memory map, a bigger screen, and extra inputs. The real trick is that I use special registers to trigger native GBA routines from the emulator - meaning that, while very hard to pull off, I can push things as much as I want.

What registers in particular if you don't mind me asking?

So, it's an emulator that lets modded games use the GBA's capabilities? That's neat. I'm always wary of such things because you can end up like old SMW/SM64 mods only working on one old emu version. But when it's a proper spec, instead of accidentally relying on wrong impl, maybe not a big deal.

Yes, something like that, but the emulator has code built specifically for each game so they can't be separated. At the end of the day, you get a real GBA game that you can run anywhere, including real hardware. It's the same as the Classic NES Series.

Pretty excited to see this. The concept has crossed my mind on a couple occasions, I did a small poc video in the past, though it was more so an emulator with enhancements, rather than targeting GBA m.youtube.com/watch?v=4P4a...

This reminds me a lot of the Game Boy ROM format that I've always wished existed—an “Ultra Game Boy Color” that combined the Game Boy Color and Super Game Boy's features so you could get GBC palettes with SGB television borders plus actual functional utilized OBJ mode from SNES video memory