Wolfenstein 3D for Gameboy Color on custom cartridge (2016)

a day ago

Wolfenstein 3D is adapted for Gameboy Color using a custom cartridge with a co-processor.
Cartridge Rev.D replaces the Nintendo MBC1 with an ATF1502 CPLD, making it fully functional with off-the-shelf parts.
Source code and hardware schematics are available on GitHub, signaling project completion.
The KE04 MCU, an ARM Cortex-M0, is chosen for its bit-banding feature and low power consumption.
Memory optimization allows fitting the shareware episode, with potential for more episodes through further tweaks.
Game features include music, password system, pause functionality, and various bug fixes.
The project emphasizes learning PCB design, hardware, and software, rather than just creating a game.
Cartridge revisions progressed from breakout prototypes to fully integrated designs with dual-port SRAM and EEPROM.
Future possibilities include custom MBC chips and projects like Mario Kart-style games.

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