The Final Fantasy Exploit Is To Teach 32-Bit Integer Math

An enjoyable thing about old video games, also their apparent nostalgia, is that many of the more famous games have been interjected and pried apart and tinkered with for years. It leads to a lot of new “development” within the games. This often tends to uncover several hidden gems that gamers might not have had much enlightenment about throughout the game’s peak of your success such as this coding oddity found in Final Fantasy 7 that has been illustrating a lot about how 32-bit processors do the math.

The original PlayStation tends to use a 32-bit RISC processor, but you can use the most significant bit for integer signing. Consequently, if you have an integer that uses a value of 2,147,483,647 (01111111111111111111111111111111 in binary) and you put in one. You will then find the cost is suddenly negative 2147483648 because the most critical digit is also a pointer to the integer’s sign.

In that situation as mentioned above, the integer is considered to “overflow.” In Final Fantasy 7, if you are in some ways able to get a character to deal the 262,144 damage in one hit (much below two billion, because of the way the game causes damage calculations); the game is more likely to have some bit of a meltdown. [4-8Productions] had suffered and done a lot of work to show how this fault can be exploited in the game as well.

Although, usually, the damage in this game is limited to 9,999, yet it is in specific configurations. However, two of the characters may troubleshoot more harm than this critical value, revealing the weak spot of the 32-bit processor.

Even if the integer signing is a pretty indispensable idea or concept for most of us, the video absolutely deserves a watch more than ever if you’re fans of the classic game.

It’s obvious; Final Fantasy 7 isn’t the only classic game that has been exploited and also reverse-engineered to the high position. Now, a Super Mario World level can also be used in order to implement a calculator as well.

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