atarpara

@atarpara

Open to work | ✯ solady.org | prev. @onchainheroes

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github.com/atarpara

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atarpara
@atarpara
May 14
New article: deriving the math behind Solady's 67-byte, 114-gas sqrt(x) from first principles. The Solady CLZ PR just merged! 🚀 github.com/Vectorized/sol… No magic multipliers Exactly 6 Babylonian iterations 1 floor correction Full derivation 👇
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atarpara
@atarpara
May 30
1/4 Answer: Version D1 is cheaper by 6 gas! 🎉 This behavior is caused by the Solidity compiler's internal "stack scheduling" heuristic during code generation. It seems counterintuitive to delay a revert check, but on the happy path, it makes a massive difference to stack
atarpara
@atarpara
May 28
Solidity Compiler Quiz Challenge Both functions calculate the exact same mathematical expression. Which version is cheaper on the happy path, and why? 👇 (Spoiler: This is used in `solady.fullMulDiv()`)
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atarpara
@atarpara
May 30
Solady update: Added a CLZ variant to LibRLP. LibRLP.encodeUint() is now 118 gas cheaper. PR: github.com/Vectorized/sol… More optimizations coming soon.
✨ Added `LibRLP.sol` with clz by atarpara · Pull Request #1535 · Vectorized/solady
From github.com
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atarpara
@atarpara
May 28
Solidity Compiler Quiz Challenge Both functions calculate the exact same mathematical expression. Which version is cheaper on the happy path, and why? 👇 (Spoiler: This is used in `solady.fullMulDiv()`)
1
atarpara
@atarpara
May 16
New article: deriving the math behind Solady’s `cbrt(x)` implementation from first principles. What is the 0x90b5e5 constant actually doing? original implementation by @duncancmt * Why cube root needs magic multipliers * Why sqrt does not * Optimal Initial guess * Exactly 5
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