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Questions tagged [game-boy]

For questions about the usage and maintenance of Game Boys

1
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1answer
207 views

What don't I understand about this LR35902 code?

The question you are now reading is about a comment on this question, about overflow bugs in some Pokemon game. A comment on that question says: It was Game Freak's first project. They just were ...
2
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0answers
177 views

Is my Japanese Pokemon Red cart fake or damaged?

I recently got this copy of Pokemon Red (JP). After an indeterminate amount of time (anywhere from 30 seconds to 30 minutes), it will cause my GB Player to crash. I have functional copies of Yellow ...
7
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3answers
559 views

Role of the Z80 co-processor in GBA games

The Nintendo Game Boy Advance had a Z80-like processor which was typically used for backwards compatibility with GB and GBC games. According to its Wikipedia page, an uncited comment claims that the ...
1
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1answer
695 views

Physically emulate Gameboy cartridge using Raspberry Pi? [duplicate]

This is an extension to the question NES cartridge rom emulation with arduino or pi?, which asked whether it would be possible to physically emulate a NES cartridge using an Arduino/Raspberry Pi (RPi)....
2
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3answers
564 views

Game Boy save problem

I have an original Game Boy, and I know that saving is broken because Tetris won’t save my scores. How does saving work in Game Boy games, and are there any games that save without the use of the ...
8
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1answer
379 views

How do you remove an LCD bubble on an unmodified Game Boy?

On an unmodified Game Boy Pocket, a small round ~0.5mm diameter bubble appeared on the center-left side of the screen eight months after I had last used it (there was no indication of it previously). ...
8
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2answers
2k views

How to get a dump of a particular ROM?

How do I create a dump of a Game Boy game so that I can have it for backup as a ROM? I know that I can download the ROM (though slightly illegal) if I really wanted to, but I want to know "how" ROM ...
21
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3answers
3k views

Why did Pokémon Red have so many overflow bugs?

(This question also applies to other Game Boy games, but Pokémon seems to be one of the best-documented.) Pokémon Red & Blue (Red & Green in Japan) is a pair of Game Boy games about capturing ...
12
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2answers
787 views

How can I build Gameboy Development Kit 2.1.5 on a modern Unix/Mac platform?

Continuing with my quest to build the Infinity Game Boy Color source code, I am trying to build the Unix source of GBDK 2.1.5 on my macOS El Capitan machine. Trying to make the files in the lib ...
8
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1answer
1k views

Game Boy DMG to VGA

I have a Game Boy DMG with a broken screen that I want to turn into a small arcade machine, so I need to display the Game Boy screen on a bigger (computer) screen. I tried doing so with an Arduino. I ...
11
votes
1answer
2k views

What is this unused memory range in the Game Boy's memory map?

Here is a basic memory map of the Game Boy's 16bit address bus: 0000-3FFF 16KB ROM Bank 00 (in cartridge, fixed at bank 00) 4000-7FFF 16KB ROM Bank 01..NN (in cartridge, switchable bank number) 8000-...
5
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1answer
183 views

Game Boy Sound System Unused Memory Locations

I was looking at a memory map of the DMG-CPU-03 soundchip in the original Game Boy and noticed the memory at registers FF27 through FF2F are unused: Name Addr 7654 3210 Function ----------------------...
27
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2answers
13k views

GameBoy Color games do not save any more

I have a Nintendo GameBoy Color with some games that support saving your game status and also have a real-time clock, like Pokémon Red and Pokémon Silver. But recently the game does not save any more,...
12
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2answers
633 views

How can I rejuvenate Game Boy contacts? [duplicate]

I've got an old Nintendo Game Boy, with a number of games for it. The problem is that most of these games don't load any more, and I suspect that's an issue with the contacts either in the unit, or in ...