The Game Boy Advance is useful in the modern era for more than watching Christopher Nolan blockbusters. Gizmodo notes that tinkerer Rodrigo Alfonso has Nintendo’s 20-year-old handheld running PlayStation (and Genesis, and SNES) games without special modifications. The trick, as you might imagine revolves around a custom cartridge — you’re technically running the game on a separate system.
The cartridge houses a Raspberry Pi 3 mini-computer running the RetroPie emulator and streaming both video and input through the GBA’s multiplayer-oriented Link Port. Yes, that’s constraining as you think it is — you can’t transfer more than 1.6Mbps bi-directionally, and the Pi has to routinely give the “poor” GBA’s processor
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