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> 'The company was on the verge of mass manufacturing its European cartridges when a serious bug was discovered in the code. ‘It turned out that if you pressed
by Dwedit 2y ago
> 'The company was on the verge of mass manufacturing its European cartridges when a serious bug was discovered in the code. ‘It turned out that if you pressed brake or reverse on the starting grid the game just crashed,’ says Graham. ‘QA wasn’t what it is now and nobody had ever tried that before. Codemasters had already manufactured tens of thousands of ROMs with this bug in, so in order to get it to work, they put some of the Game Genie hardware into the cartridge which would change the one byte of the code that contained the bug – that’s how they fixed it.'
Has anyone ever found a photo of the "Game Genie Patch" version of Micro Machines? I can't find any photos of the cartridge board that uses that fix.
- nomel 2y agoI wonder if it was the actual game genie, or just the same concept. If you're just modifying a single byte at a single address, of a fixed ROM, you could easily throw something minimal together with a handful of transistors/resistors.