Integer: Difference between revisions

And I'm sure you've figured it out by now. Yes, if a signed number gets too big, it suddenly becomes very very small. This is known as integer overflow and occurs when a number crosses over from <tt>0x7F...</tt> to <tt>0x80...</tt> (fill in the dots with Fs/0s depending on the size of your numeric data type.) Luckily, nearly all CPUs have special hardware just for detecting overflow, and do so automatically after every calculation. Here's an example from [[x86 Assembly]]