Bitwise and modular math
Explore shifts, masks, addmod, and mulmod.
Solidity 0.8.36REPL mode
Why use this example
Use this pattern to confirm Solidity arithmetic and unit behavior before putting the same expression into a contract. The entry isolates bitwise and modular math so its input, result, and state changes stay easy to compare.
Solidity to run
uint256 flags = 0x2d
flags & 0x0f
flags << 2
addmod(8, 9, 5)
mulmod(8, 9, 5)What to expect
The run shows the masked and shifted values followed by the deterministic addmod and mulmod results.
Continue the investigation
Change a value, add another expression, or open Inspect after the run. Accepted entries remain available to the next entry, and the clean replay keeps the complete result reproducible.
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