Integer overflow — Knowsy

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Chapter 01 / 04

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Welcome. — pick a chapter to begin.

Type Op

Speed 1.00×

Click bits, drag the wheel, or run a demo to see what happens at the boundary.

Same bits, two readings —

Pick a chapter from the banner above. Each chapter shows a different angle on what fixed-width integers do at their edges.

Demos Famous wraps

Challenge Try it

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Cheat sheet Wrap rules

Four chapters · BigInt-backed math so behavior is exact at every width up to 32 bits.

Pair this with the Error coding lab and the Graphical Reference for the rest of the bits-and-gates set.