Blog

Jul 19, 2026

How I Wrote A Fixed-Point Solidity Sqrt That Runs In 197 Gas

A step-by-step walkthrough of writing a fixed-point sqrt in Solidity at 197 gas — from the first design decision to the final assembly, with gas benchmarks measured along the way.

May 28, 2026

Counting leading zeros in Solidity using CLZ opcode

How DeFiMath uses the new CLZ opcode (EIP-7939) to power sqrt, cbrt, and ln — initial guesses and range reduction in a single instruction.